Psyllid ID: psy9435

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Local Sequence Feature Prediction

Residue Number Marker
--------10--------20--------30--------40--------50--------60--------70--------80--------90-------100------
Protein Sequence
MNSIFKLSTLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL
Secondary Structure (PSIPRED)
cccHHHHcccccccccccccccccccccccccccccccccccccHHHHHHHccccccccccccccHHHHHHHHHHHHHHHHHHHHHHHHHHHHHcccccccccccc
Secondary Structure Prediction (SSPRO)
cHHHHHHHHHHcHHHHccccccccccEEEEEEcccccccccHHHHHHHHHHccccccccEEEEcccHHHHHHHHHHHHHHHHHHHHHHHHHHHccccccccccccc
Coil and Loop (DISEMBL)
mnsifklstlcnpiasshlrllphirtitikpvaaptgvpskeghavrnerlgrplsphltiYKLQITSVLSITHRGTGVALTAYALGLAgvglttdinsvvptyl
Flexible Loop (DISEMBL)
MNSIFKLSTLCNPIASSHLRLLPHIRTITIkpvaaptgvpskeghavrnerlgrplsphLTIYKLQITSVLSITHRGTGVALTAYALGLagvglttdinsvvptyl
Low Complexity Region (SEG)
MNSIFKLSTLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL
Disordered region (IsUnstruct)
***IFKLSTLCNPIASSHLRLLPHIRTITIKPVAAP******************PLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVV****
Disordered Region (DISOPRED)
*****************************************************RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL
Disordered Region (DISEMBL)
MNSIFKLSTLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL
Disordered Region (DISPRO)
MNSIFKLSTLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL
Transmembrane Helix (TMHMM)
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Transmembrane Helix (HMMTOP)
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiHHHHHHHHHHHHHHHHHHoooooooooooo
Transmembrane Helix (MEMSAT)
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiHHHHHHHHHHHHHHHHHHHHHHHHoooooooooo
TM Helix, Signal Peptide (MEMSAT_SVM)
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiHHHHHHHHHHHHHHHHHHHooooooooooooo
TM Helix, Signal Peptide (Phobius)
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Signal Peptide (SignalP HMM Mode)
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Signal Peptide (SignalP NN Mode)
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Coiled Coils (COILS)
MNSIFKLSTLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL
Positional Conservation
no confident homologs detected

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Close Homologs for Annotation Transfer

Close Homologs in SWISS-PROT Database Detected by BLAST

Original result of BLAST against SWISS-PROT Database

ID	Length	Definition	RBH(Q2H)	RBH(H2Q)	Q cover	H cover	Identity	E-value
Query	106	2.2.26 [Sep-21-2011]
D0VWV4	169	Succinate dehydrogenase c	yes	N/A	0.481	0.301	0.5	2e-06
Q9CZB0	169	Succinate dehydrogenase c	yes	N/A	0.481	0.301	0.481	2e-06
P80481	144	Succinate dehydrogenase c	N/A	N/A	0.349	0.256	0.641	5e-06
Q4UKC1	124	Succinate dehydrogenase c	yes	N/A	0.367	0.314	0.595	5e-06
Q99643	169	Succinate dehydrogenase c	yes	N/A	0.481	0.301	0.481	7e-06
P70097	169	Succinate dehydrogenase c	yes	N/A	0.481	0.301	0.481	7e-06
P35720	169	Succinate dehydrogenase c	yes	N/A	0.481	0.301	0.462	8e-06
Q8T2T5	192	Succinate dehydrogenase c	yes	N/A	0.386	0.213	0.560	3e-05
Q1RHB5	125	Succinate dehydrogenase c	yes	N/A	0.367	0.312	0.595	3e-05
P41085	124	Succinate dehydrogenase c	yes	N/A	0.273	0.233	0.793	5e-05

>sp|D0VWV4|C560_PIG Succinate dehydrogenase cytochrome b560 subunit, mitochondrial OS=Sus scrofa GN=SDHC PE=1 SV=2

 Score = 51.2 bits (121), Expect = 2e-06,   Method: Compositional matrix adjust.
 Identities = 27/54 (50%), Positives = 35/54 (64%), Gaps = 3/54 (5%)

Query: 34 AAPTGVPSKEG-HAVRNERLG--RPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          A P G  +KE      N+ LG  RPLSPH+TIY+  +   +SI HRGTG+AL+A
Sbjct: 27 AVPLGTTAKEEMERFWNKNLGSNRPLSPHITIYRWSLPMAMSICHRGTGIALSA 80

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).
Sus scrofa (taxid: 9823)

>sp|Q9CZB0|C560_MOUSE Succinate dehydrogenase cytochrome b560 subunit, mitochondrial OS=Mus musculus GN=Sdhc PE=2 SV=1

 Score = 50.8 bits (120), Expect = 2e-06,   Method: Compositional matrix adjust.
 Identities = 26/54 (48%), Positives = 33/54 (61%), Gaps = 3/54 (5%)

Query: 34 AAPTGVPSKEG---HAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          AAP G  +KE       +N    RPLSPHLTIYK  +   LS+ HRG+G+AL+ 
Sbjct: 27 AAPLGTTAKEEMERFWKKNTSSNRPLSPHLTIYKWSLPMALSVCHRGSGIALSG 80

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).

Mus musculus (taxid: 10090)

>sp|P80481|C560_RECAM Succinate dehydrogenase cytochrome b560 subunit OS=Reclinomonas americana GN=SDH3 PE=3 SV=1

 Score = 49.7 bits (117), Expect = 5e-06,   Method: Compositional matrix adjust.
 Identities = 25/39 (64%), Positives = 30/39 (76%), Gaps = 2/39 (5%)

Query: 47 VRNERLGRPLSPHLTIYKLQITSVLSITHRGTG--VALT 83
          + N  + RP+SPHLTIYKLQIT+ LSI HR TG  +ALT
Sbjct: 14 IINMNINRPISPHLTIYKLQITNTLSIFHRITGGVLALT 52

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).

Reclinomonas americana (taxid: 48483)

>sp|Q4UKC1|DHSC_RICFE Succinate dehydrogenase cytochrome b556 subunit OS=Rickettsia felis (strain ATCC VR-1525 / URRWXCal2) GN=sdhC PE=3 SV=1

 Score = 49.7 bits (117), Expect = 5e-06,   Method: Compositional matrix adjust.
 Identities = 25/42 (59%), Positives = 30/42 (71%), Gaps = 3/42 (7%)

Query: 41 SKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVAL 82
          +K    + N+R   P SPHL+IYKLQI+S LSI HR TGVAL
Sbjct: 2  TKTKQEIYNKR---PTSPHLSIYKLQISSTLSILHRMTGVAL 40

Membrane-anchoring subunit of succinate dehydrogenase (SDH).

Rickettsia felis (strain ATCC VR-1525 / URRWXCal2) (taxid: 315456)

>sp|Q99643|C560_HUMAN Succinate dehydrogenase cytochrome b560 subunit, mitochondrial OS=Homo sapiens GN=SDHC PE=1 SV=1

 Score = 49.3 bits (116), Expect = 7e-06,   Method: Compositional matrix adjust.
 Identities = 26/54 (48%), Positives = 34/54 (62%), Gaps = 3/54 (5%)

Query: 34 AAPTGVPSKEG-HAVRNERLG--RPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          A P G  +KE      N+ +G  RPLSPH+TIY   +   +SI HRGTG+AL+A
Sbjct: 27 AVPLGTTAKEEMERFWNKNIGSNRPLSPHITIYSWSLPMAMSICHRGTGIALSA 80

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).

Homo sapiens (taxid: 9606)

>sp|P70097|C560_CRIGR Succinate dehydrogenase cytochrome b560 subunit, mitochondrial OS=Cricetulus griseus GN=SDHC PE=2 SV=1

 Score = 49.3 bits (116), Expect = 7e-06,   Method: Compositional matrix adjust.
 Identities = 26/54 (48%), Positives = 33/54 (61%), Gaps = 3/54 (5%)

Query: 34 AAPTGVPSKEG---HAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          A P G  +KE       +N    RP+SPHLTIY+  +  V+SI HRGTGVAL+ 
Sbjct: 27 AVPLGTTAKEEMERFWNKNTSSKRPVSPHLTIYRWSLPMVMSICHRGTGVALSG 80

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).

Cricetulus griseus (taxid: 10029)

>sp|P35720|C560_BOVIN Succinate dehydrogenase cytochrome b560 subunit, mitochondrial OS=Bos taurus GN=SDHC PE=1 SV=2

 Score = 48.9 bits (115), Expect = 8e-06,   Method: Compositional matrix adjust.
 Identities = 25/54 (46%), Positives = 33/54 (61%), Gaps = 3/54 (5%)

Query: 34 AAPTGVPSKEG---HAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          A P G  +KE       +N  L RPLSPH++IY   +   +SI HRGTG+AL+A
Sbjct: 27 AVPLGTTAKEEMERFWSKNTTLNRPLSPHISIYGWSLPMAMSICHRGTGIALSA 80

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).

Bos taurus (taxid: 9913)

>sp|Q8T2T5|C560_DICDI Succinate dehydrogenase cytochrome b560 subunit, mitochondrial OS=Dictyostelium discoideum GN=sdhC PE=3 SV=1

 Score = 47.0 bits (110), Expect = 3e-05,   Method: Compositional matrix adjust.
 Identities = 23/41 (56%), Positives = 28/41 (68%)

Query: 54  RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGL 94
           +P SPHLTIYK  + +V+SI HR TG+ L     GLAGV L
Sbjct: 71  QPTSPHLTIYKFPLPAVMSIMHRATGICLALGITGLAGVTL 111

Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).

Dictyostelium discoideum (taxid: 44689)

>sp|Q1RHB5|DHSC_RICBR Succinate dehydrogenase cytochrome b556 subunit OS=Rickettsia bellii (strain RML369-C) GN=sdhC PE=3 SV=1

 Score = 47.0 bits (110), Expect = 3e-05,   Method: Compositional matrix adjust.
 Identities = 25/42 (59%), Positives = 29/42 (69%), Gaps = 3/42 (7%)

Query: 41 SKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVAL 82
          +K    + N+R   P SPHLTIYK QI+S LSI HR TGVAL
Sbjct: 2  TKTKQEIYNKR---PTSPHLTIYKPQISSTLSILHRMTGVAL 40

Membrane-anchoring subunit of succinate dehydrogenase (SDH).

Rickettsia bellii (strain RML369-C) (taxid: 336407)

>sp|P41085|DHSC_RICPR Succinate dehydrogenase cytochrome b556 subunit OS=Rickettsia prowazekii (strain Madrid E) GN=sdhC PE=3 SV=1

 Score = 46.6 bits (109), Expect = 5e-05,   Method: Compositional matrix adjust.
 Identities = 23/29 (79%), Positives = 24/29 (82%)

Query: 54 RPLSPHLTIYKLQITSVLSITHRGTGVAL 82
          RP SPHLTIYK QI+S LSI HR TGVAL
Sbjct: 12 RPTSPHLTIYKPQISSTLSILHRMTGVAL 40

Membrane-anchoring subunit of succinate dehydrogenase (SDH).

Rickettsia prowazekii (strain Madrid E) (taxid: 272947)

Close Homologs in the Non-Redundant Database Detected by BLAST

Original result of BLAST against Nonredundant Database

GI	Length	Definition	Q cover	H cover	Identity	E-value
Query	106
118781278	175	AGAP010672-PA [Anopheles gambiae str. PE	0.660	0.4	0.581	4e-12
332373648	176	unknown [Dendroctonus ponderosae]	0.716	0.431	0.512	4e-12
240848787	175	succinate dehydrogenase cytochrome b560	0.707	0.428	0.5	1e-11
91077182	173	PREDICTED: similar to succinate dehydrog	0.962	0.589	0.416	1e-11
91077184	172	PREDICTED: similar to succinate dehydrog	0.830	0.511	0.450	3e-11
290560974	173	Succinate dehydrogenase cytochrome b560	0.754	0.462	0.505	4e-11
225713156	173	Succinate dehydrogenase cytochrome b560	0.754	0.462	0.505	5e-11
225713228	173	Succinate dehydrogenase cytochrome b560	0.754	0.462	0.505	5e-11
157120010	171	succinate dehydrogenase [Aedes aegypti]	0.669	0.415	0.546	5e-11
312375419	192	hypothetical protein AND_14194 [Anophele	0.660	0.364	0.554	9e-11

>gi|118781278|ref|XP_311387.3| AGAP010672-PA [Anopheles gambiae str. PEST] gi|116130095|gb|EAA07051.3| AGAP010672-PA [Anopheles gambiae str. PEST]

 Score = 75.5 bits (184), Expect = 4e-12,   Method: Compositional matrix adjust.
 Identities = 43/74 (58%), Positives = 49/74 (66%), Gaps = 4/74 (5%)

Query: 26  RTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAY 85
           RTI +KPV A   V   E H  RN RL RP SPHLTIY  Q+TS+LSITHR TG+ALT Y
Sbjct: 32  RTIVLKPVQAD--VRPGESHDDRNARLKRPQSPHLTIYSFQLTSMLSITHRFTGLALTGY 89

Query: 86  --ALGLAGVGLTTD 97
             ALGL  + +  D
Sbjct: 90  ITALGLGALAMPHD 103

Source: Anopheles gambiae str. PEST

Species: Anopheles gambiae

Genus: Anopheles

Family: Culicidae

Order: Diptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|332373648|gb|AEE61965.1| unknown [Dendroctonus ponderosae]

 Score = 75.5 bits (184), Expect = 4e-12,   Method: Compositional matrix adjust.
 Identities = 40/78 (51%), Positives = 49/78 (62%), Gaps = 2/78 (2%)

Query: 20 RLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTG 79
          R+L   RT+TIK   AP   P  E H  RN RL RP SPHLTIYK Q+TS+LSI+HR TG
Sbjct: 23 RVLSQARTVTIK--CAPAVAPRDESHDERNMRLVRPQSPHLTIYKPQLTSMLSISHRATG 80

Query: 80 VALTAYALGLAGVGLTTD 97
          + LT Y +  +   +  D
Sbjct: 81 MVLTGYTVLFSMAAVYLD 98

Source: Dendroctonus ponderosae

Species: Dendroctonus ponderosae

Genus: Dendroctonus

Family: Curculionidae

Order: Coleoptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|240848787|ref|NP_001155673.1| succinate dehydrogenase cytochrome b560 subunit, mitochondrial-like [Acyrthosiphon pisum] gi|239788025|dbj|BAH70709.1| ACYPI006695 [Acyrthosiphon pisum]

 Score = 73.9 bits (180), Expect = 1e-11,   Method: Compositional matrix adjust.
 Identities = 38/76 (50%), Positives = 51/76 (67%), Gaps = 1/76 (1%)

Query: 27  TITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA 86
           T+ +K V    G  S+E H  +N RL RP+SPHL IYK Q+T++LSITHRGTGVAL+   
Sbjct: 30  TMQVKTVQEVEG-KSQETHDDKNNRLNRPMSPHLAIYKPQLTTILSITHRGTGVALSGVT 88

Query: 87  LGLAGVGLTTDINSVV 102
            GL  + + TD+ + V
Sbjct: 89  AGLGALFIFTDLPTFV 104

Source: Acyrthosiphon pisum

Species: Acyrthosiphon pisum

Genus: Acyrthosiphon

Family: Aphididae

Order: Hemiptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|91077182|ref|XP_972413.1| PREDICTED: similar to succinate dehydrogenase [Tribolium castaneum] gi|270002816|gb|EEZ99263.1| hypothetical protein TcasGA2_TC000992 [Tribolium castaneum]

 Score = 73.6 bits (179), Expect = 1e-11,   Method: Compositional matrix adjust.
 Identities = 45/108 (41%), Positives = 63/108 (58%), Gaps = 6/108 (5%)

Query: 1   MNSIFKLST--LCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSP 58
           M +IF+L    + + + +  L +L  +R +T+K  A P       GH  RN +LGRP SP
Sbjct: 1   MAAIFRLGNRQILSQLRNEKLGMLSLVRPVTLK--AQPATKEIDIGHDERNMQLGRPQSP 58

Query: 59  HLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTYL 106
           HLTIY  Q+TS+LSITHR TG+ L  YA+ + G G    +   +P YL
Sbjct: 59  HLTIYSFQLTSMLSITHRATGMMLAGYAI-MWGTGAVV-LPDTIPHYL 104

Source: Tribolium castaneum

Species: Tribolium castaneum

Genus: Tribolium

Family: Tenebrionidae

Order: Coleoptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|91077184|ref|XP_972464.1| PREDICTED: similar to succinate dehydrogenase [Tribolium castaneum] gi|270002817|gb|EEZ99264.1| hypothetical protein TcasGA2_TC000993 [Tribolium castaneum]

 Score = 72.8 bits (177), Expect = 3e-11,   Method: Compositional matrix adjust.
 Identities = 41/91 (45%), Positives = 57/91 (62%), Gaps = 3/91 (3%)

Query: 1  MNSIFKLSTLCNPIA-SSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPH 59
          M++IF+L+     +   ++  LL  +R +T+KP  AP       GH  RN +LGRP SPH
Sbjct: 1  MSAIFRLANRQTALKFKTNFGLLSLVRPVTLKPQPAPK--EEDLGHDARNMKLGRPQSPH 58

Query: 60 LTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          LTIY  Q+TS+LSI+HR TG+ LT Y + L 
Sbjct: 59 LTIYAPQMTSMLSISHRATGMILTFYTIVLG 89

Source: Tribolium castaneum

Species: Tribolium castaneum

Genus: Tribolium

Family: Tenebrionidae

Order: Coleoptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|290560974|gb|ADD37889.1| Succinate dehydrogenase cytochrome b560 subunit, mitochondrial [Lepeophtheirus salmonis]

 Score = 72.0 bits (175), Expect = 4e-11,   Method: Compositional matrix adjust.
 Identities = 45/89 (50%), Positives = 59/89 (66%), Gaps = 9/89 (10%)

Query: 22  LPHI--RTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTG 79
           LP+I  R+I++K +      P KE +  +N+RL RPLSPHLTIYK Q+TS+LSITHRGTG
Sbjct: 24  LPNIGLRSISLKSMTQEEVAP-KESYWDKNKRLNRPLSPHLTIYKPQLTSMLSITHRGTG 82

Query: 80  VALTA--YALGLAGVGLTTDINSVVPTYL 106
           + LT   YA GL    L ++     PT+L
Sbjct: 83  IFLTGVVYAGGLIPFLLPSNF----PTFL 107

Source: Lepeophtheirus salmonis

Species: Lepeophtheirus salmonis

Genus: Lepeophtheirus

Family: Caligidae

Order: Siphonostomatoida

Class: Maxillopoda

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|225713156|gb|ACO12424.1| Succinate dehydrogenase cytochrome b560 subunit, mitochondrial precursor [Lepeophtheirus salmonis]

 Score = 72.0 bits (175), Expect = 5e-11,   Method: Compositional matrix adjust.
 Identities = 45/89 (50%), Positives = 59/89 (66%), Gaps = 9/89 (10%)

Query: 22  LPHI--RTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTG 79
           LP+I  R+I++K +      P KE +  +N+RL RPLSPHLTIYK Q+TS+LSITHRGTG
Sbjct: 24  LPNIGLRSISLKSMTQEEVAP-KESYWDKNKRLNRPLSPHLTIYKPQLTSMLSITHRGTG 82

Query: 80  VALTA--YALGLAGVGLTTDINSVVPTYL 106
           + LT   YA GL    L ++     PT+L
Sbjct: 83  IFLTGVVYAGGLIPFLLPSNF----PTFL 107

Source: Lepeophtheirus salmonis

Species: Lepeophtheirus salmonis

Genus: Lepeophtheirus

Family: Caligidae

Order: Siphonostomatoida

Class: Maxillopoda

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|225713228|gb|ACO12460.1| Succinate dehydrogenase cytochrome b560 subunit, mitochondrial precursor [Lepeophtheirus salmonis]

 Score = 72.0 bits (175), Expect = 5e-11,   Method: Compositional matrix adjust.
 Identities = 45/89 (50%), Positives = 59/89 (66%), Gaps = 9/89 (10%)

Query: 22  LPHI--RTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTG 79
           LP+I  R+I++K +      P KE +  +N+RL RPLSPHLTIYK Q+TS+LSITHRGTG
Sbjct: 24  LPNIGLRSISLKSMTQEEVAP-KESYWDKNKRLNRPLSPHLTIYKPQLTSMLSITHRGTG 82

Query: 80  VALTA--YALGLAGVGLTTDINSVVPTYL 106
           + LT   YA GL    L ++     PT+L
Sbjct: 83  IFLTGVVYAGGLIPFLLPSNF----PTFL 107

Source: Lepeophtheirus salmonis

Species: Lepeophtheirus salmonis

Genus: Lepeophtheirus

Family: Caligidae

Order: Siphonostomatoida

Class: Maxillopoda

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|157120010|ref|XP_001653486.1| succinate dehydrogenase [Aedes aegypti] gi|94468558|gb|ABF18128.1| mitochondrial succinate dehydrogenase cytochrome b subunit [Aedes aegypti] gi|108875100|gb|EAT39325.1| AAEL008871-PA [Aedes aegypti]

 Score = 71.6 bits (174), Expect = 5e-11,   Method: Compositional matrix adjust.
 Identities = 41/75 (54%), Positives = 49/75 (65%), Gaps = 4/75 (5%)

Query: 25 IRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          +RT+ +KPV  P   P  E H  RN RL RP SPHLTIY  Q+TS+LSITHR TG+AL  
Sbjct: 27 VRTVVLKPVQ-PDNRPG-ESHDDRNARLQRPQSPHLTIYAPQLTSMLSITHRMTGMALAG 84

Query: 85 YA--LGLAGVGLTTD 97
          YA  +GL  + L  D
Sbjct: 85 YATMMGLGALALPHD 99

Source: Aedes aegypti

Species: Aedes aegypti

Genus: Aedes

Family: Culicidae

Order: Diptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

>gi|312375419|gb|EFR22798.1| hypothetical protein AND_14194 [Anopheles darlingi]

 Score = 70.9 bits (172), Expect = 9e-11,   Method: Compositional matrix adjust.
 Identities = 41/74 (55%), Positives = 47/74 (63%), Gaps = 4/74 (5%)

Query: 26  RTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAY 85
           RTI +KPV +       E H  RN RL RP SPHLTIY  Q+TS LSITHR TG+ALT Y
Sbjct: 35  RTIVLKPVKSDE--RPGESHDDRNARLKRPQSPHLTIYSFQLTSTLSITHRFTGLALTGY 92

Query: 86  --ALGLAGVGLTTD 97
             ALGL  + +  D
Sbjct: 93  ITALGLGALVMPHD 106

Source: Anopheles darlingi

Species: Anopheles darlingi

Genus: Anopheles

Family: Culicidae

Order: Diptera

Class: Insecta

Phylum: Arthropoda

Superkingdom: Eukaryota

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Prediction of Gene Ontology (GO) Terms

Close Homologs with Gene Ontology terms Detected by BLAST

Original result of BLAST against Gene Ontology (AMIGO)

ID	Length	Definition	Q cover	H cover	Identity	E-value
Query	106
FB|FBgn0037873	171	SdhC "Succinate dehydrogenase	0.839	0.520	0.430	5e-12
ZFIN|ZDB-GENE-040801-26	169	sdhc "succinate dehydrogenase	0.575	0.360	0.454	9.7e-09
UNIPROTKB|D0VWV4	169	SDHC "Succinate dehydrogenase	0.547	0.343	0.467	4.2e-08
UNIPROTKB|E2R9X4	168	SDHC "Uncharacterized protein"	0.547	0.345	0.467	8.7e-08
UNIPROTKB|Q99643	169	SDHC "Succinate dehydrogenase	0.547	0.343	0.451	1.1e-07
MGI|MGI:1913302	169	Sdhc "succinate dehydrogenase	0.547	0.343	0.451	1.1e-07
FB|FBgn0037860	261	CG6629 [Drosophila melanogaste	0.726	0.295	0.369	1.9e-07
UNIPROTKB|P35720	169	SDHC "Succinate dehydrogenase	0.547	0.343	0.435	2.9e-07
UNIPROTKB|P70097	169	SDHC "Succinate dehydrogenase	0.547	0.343	0.451	3.8e-07
DICTYBASE|DDB_G0275115	192	sdhC "succinate dehydrogenase	0.386	0.213	0.560	3.8e-07

FB|FBgn0037873 SdhC "Succinate dehydrogenase C" [Drosophila melanogaster (taxid:7227)]

 Score = 162 (62.1 bits), Expect = 5.0e-12, P = 5.0e-12
 Identities = 40/93 (43%), Positives = 57/93 (61%)

Query:     8 STLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQI 67
             S + +P     L++    R +++K V+        E    +NERLGR LSPHLTIY+ Q+
Sbjct:     7 SLIRSPALRQGLQMAAASRQVSMKVVSVAE-TQKDESFFEKNERLGRELSPHLTIYQPQL 65

Query:    68 TSVLSITHRGTGVALTAYALGLAGVGLTTDINS 100
             TS+LSI HRGTG+AL    +G+ G+GL   I+S
Sbjct:    66 TSMLSICHRGTGLAL---GVGVWGLGLGALISS 95

GO:0006105 "succinate metabolic process" evidence=ISS

GO:0000104 "succinate dehydrogenase activity" evidence=ISS

GO:0005749 "mitochondrial respiratory chain complex II" evidence=ISS

GO:0006099 "tricarboxylic acid cycle" evidence=ISS

GO:0006121 "mitochondrial electron transport, succinate to ubiquinone" evidence=ISS;IMP

GO:0008177 "succinate dehydrogenase (ubiquinone) activity" evidence=ISS

GO:0009055 "electron carrier activity" evidence=IEA

GO:0006979 "response to oxidative stress" evidence=IMP

GO:0008340 "determination of adult lifespan" evidence=IMP

ZFIN|ZDB-GENE-040801-26 sdhc "succinate dehydrogenase complex, subunit C, integral membrane protein" [Danio rerio (taxid:7955)]

 Score = 131 (51.2 bits), Expect = 9.7e-09, P = 9.7e-09
 Identities = 30/66 (45%), Positives = 40/66 (60%)

Query:    34 AAPTGVPSKEGHA---VRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA--YALG 88
             A P G  S E       +N RL RP+SPH+TIYK  +   +SI+HRGTG+AL++   A  
Sbjct:    27 AVPMGTTSNEEMDKFWAKNTRLNRPMSPHMTIYKWSVPMAMSISHRGTGIALSSGISAFA 86

Query:    89 LAGVGL 94
             LA + L
Sbjct:    87 LAALVL 92

GO:0006099 "tricarboxylic acid cycle" evidence=IEA

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

GO:0016627 "oxidoreductase activity, acting on the CH-CH group of donors" evidence=IEA

GO:0045281 "succinate dehydrogenase complex" evidence=IEA

GO:0009055 "electron carrier activity" evidence=IEA

GO:0016020 "membrane" evidence=IEA

UNIPROTKB|D0VWV4 SDHC "Succinate dehydrogenase cytochrome b560 subunit, mitochondrial" [Sus scrofa (taxid:9823)]

 Score = 125 (49.1 bits), Expect = 4.2e-08, P = 4.2e-08
 Identities = 29/62 (46%), Positives = 39/62 (62%)

Query:    34 AAPTGVPSKEG-HAVRNERLG--RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
             A P G  +KE      N+ LG  RPLSPH+TIY+  +   +SI HRGTG+AL+A  + L 
Sbjct:    27 AVPLGTTAKEEMERFWNKNLGSNRPLSPHITIYRWSLPMAMSICHRGTGIALSA-GVSLF 85

Query:    91 GV 92
             G+
Sbjct:    86 GL 87

GO:0005749 "mitochondrial respiratory chain complex II" evidence=IDA

GO:0020037 "heme binding" evidence=IDA

GO:0005743 "mitochondrial inner membrane" evidence=IDA

GO:0005515 "protein binding" evidence=IPI

GO:0006099 "tricarboxylic acid cycle" evidence=IEA

GO:0046872 "metal ion binding" evidence=IEA

GO:0022900 "electron transport chain" evidence=IEA

GO:0016021 "integral to membrane" evidence=IEA

GO:0009055 "electron carrier activity" evidence=IEA

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

UNIPROTKB|E2R9X4 SDHC "Uncharacterized protein" [Canis lupus familiaris (taxid:9615)]

 Score = 122 (48.0 bits), Expect = 8.7e-08, P = 8.7e-08
 Identities = 29/62 (46%), Positives = 37/62 (59%)

Query:    34 AAPTGVPSKEGHAV---RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
             A P G  +KE       +N  L RPLSPH+TIY   +   +SI HRGTGVAL+A  + L 
Sbjct:    27 AVPLGTTAKEEMERFWNKNTDLNRPLSPHITIYSWSLPMAMSICHRGTGVALSA-GVSLF 85

Query:    91 GV 92
             G+
Sbjct:    86 GL 87

GO:0045281 "succinate dehydrogenase complex" evidence=IEA

GO:0009055 "electron carrier activity" evidence=IEA

GO:0006099 "tricarboxylic acid cycle" evidence=IEA

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

UNIPROTKB|Q99643 SDHC "Succinate dehydrogenase cytochrome b560 subunit, mitochondrial" [Homo sapiens (taxid:9606)]

 Score = 121 (47.7 bits), Expect = 1.1e-07, P = 1.1e-07
 Identities = 28/62 (45%), Positives = 38/62 (61%)

Query:    34 AAPTGVPSKEG-HAVRNERLG--RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
             A P G  +KE      N+ +G  RPLSPH+TIY   +   +SI HRGTG+AL+A  + L 
Sbjct:    27 AVPLGTTAKEEMERFWNKNIGSNRPLSPHITIYSWSLPMAMSICHRGTGIALSA-GVSLF 85

Query:    91 GV 92
             G+
Sbjct:    86 GM 87

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

GO:0009055 "electron carrier activity" evidence=IEA

GO:0046872 "metal ion binding" evidence=IEA

GO:0006099 "tricarboxylic acid cycle" evidence=IEA;TAS

GO:0055114 "oxidation-reduction process" evidence=TAS

GO:0009060 "aerobic respiration" evidence=TAS

GO:0016021 "integral to membrane" evidence=TAS

GO:0045273 "respiratory chain complex II" evidence=TAS

GO:0005739 "mitochondrion" evidence=TAS

GO:0005743 "mitochondrial inner membrane" evidence=ISS;TAS

GO:0020037 "heme binding" evidence=ISS

GO:0005749 "mitochondrial respiratory chain complex II" evidence=ISS

GO:0022904 "respiratory electron transport chain" evidence=TAS

GO:0044281 "small molecule metabolic process" evidence=TAS

MGI|MGI:1913302 Sdhc "succinate dehydrogenase complex, subunit C, integral membrane protein" [Mus musculus (taxid:10090)]

 Score = 121 (47.7 bits), Expect = 1.1e-07, P = 1.1e-07
 Identities = 28/62 (45%), Positives = 37/62 (59%)

Query:    34 AAPTGVPSKEGHA---VRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
             AAP G  +KE       +N    RPLSPHLTIYK  +   LS+ HRG+G+AL+   + L 
Sbjct:    27 AAPLGTTAKEEMERFWKKNTSSNRPLSPHLTIYKWSLPMALSVCHRGSGIALSG-GVSLF 85

Query:    91 GV 92
             G+
Sbjct:    86 GL 87

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

GO:0005739 "mitochondrion" evidence=IDA

GO:0005743 "mitochondrial inner membrane" evidence=IEA

GO:0006099 "tricarboxylic acid cycle" evidence=IEA

GO:0006810 "transport" evidence=IEA

GO:0009055 "electron carrier activity" evidence=IEA

GO:0016020 "membrane" evidence=IEA

GO:0016021 "integral to membrane" evidence=IEA

GO:0016627 "oxidoreductase activity, acting on the CH-CH group of donors" evidence=IEA

GO:0022900 "electron transport chain" evidence=IEA

GO:0045281 "succinate dehydrogenase complex" evidence=IEA

GO:0046872 "metal ion binding" evidence=IEA

FB|FBgn0037860 CG6629 [Drosophila melanogaster (taxid:7227)]

 Score = 123 (48.4 bits), Expect = 1.9e-07, P = 1.9e-07
 Identities = 31/84 (36%), Positives = 48/84 (57%)

Query:    21 LLPHIRTITIKPVAAPTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGV 80
             L+P + T+ + P   P  +P  +    RN  LGR LSPHL+IYK+Q+TS LS   R +G 
Sbjct:    56 LVPPV-TLKVIPFRMPPDLPYDD----RNMLLGRQLSPHLSIYKIQLTSTLSAFLRISGF 110

Query:    81 ALTAYA--LGLAGVGLTTDINSVV 102
              L  +   +G++G+ L  D+   +
Sbjct:   111 VLAVFVWFVGISGLCLQGDMEGFI 134

GO:0006121 "mitochondrial electron transport, succinate to ubiquinone" evidence=ISS

GO:0000104 "succinate dehydrogenase activity" evidence=ISS

GO:0006105 "succinate metabolic process" evidence=ISS

GO:0006099 "tricarboxylic acid cycle" evidence=ISS

GO:0005749 "mitochondrial respiratory chain complex II" evidence=ISS

UNIPROTKB|P35720 SDHC "Succinate dehydrogenase cytochrome b560 subunit, mitochondrial" [Bos taurus (taxid:9913)]

 Score = 117 (46.2 bits), Expect = 2.9e-07, P = 2.9e-07
 Identities = 27/62 (43%), Positives = 37/62 (59%)

Query:    34 AAPTGVPSKEGHA---VRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
             A P G  +KE       +N  L RPLSPH++IY   +   +SI HRGTG+AL+A  + L 
Sbjct:    27 AVPLGTTAKEEMERFWSKNTTLNRPLSPHISIYGWSLPMAMSICHRGTGIALSA-GVSLF 85

Query:    91 GV 92
             G+
Sbjct:    86 GL 87

GO:0005743 "mitochondrial inner membrane" evidence=ISS;TAS

GO:0005749 "mitochondrial respiratory chain complex II" evidence=ISS

GO:0020037 "heme binding" evidence=ISS

GO:0006099 "tricarboxylic acid cycle" evidence=IEA

GO:0046872 "metal ion binding" evidence=IEA

GO:0022900 "electron transport chain" evidence=IEA

GO:0016021 "integral to membrane" evidence=IEA

GO:0009055 "electron carrier activity" evidence=IEA

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

UNIPROTKB|P70097 SDHC "Succinate dehydrogenase cytochrome b560 subunit, mitochondrial" [Cricetulus griseus (taxid:10029)]

 Score = 116 (45.9 bits), Expect = 3.8e-07, P = 3.8e-07
 Identities = 28/62 (45%), Positives = 37/62 (59%)

Query:    34 AAPTGVPSKEGHAV---RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
             A P G  +KE       +N    RP+SPHLTIY+  +  V+SI HRGTGVAL+   + L 
Sbjct:    27 AVPLGTTAKEEMERFWNKNTSSKRPVSPHLTIYRWSLPMVMSICHRGTGVALSG-GVSLF 85

Query:    91 GV 92
             G+
Sbjct:    86 GL 87

GO:0005743 "mitochondrial inner membrane" evidence=ISS

GO:0005749 "mitochondrial respiratory chain complex II" evidence=ISS

GO:0020037 "heme binding" evidence=ISS

DICTYBASE|DDB_G0275115 sdhC "succinate dehydrogenase (ubiquinone)" [Dictyostelium discoideum (taxid:44689)]

 Score = 116 (45.9 bits), Expect = 3.8e-07, P = 3.8e-07
 Identities = 23/41 (56%), Positives = 28/41 (68%)

Query:    54 RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGL 94
             +P SPHLTIYK  + +V+SI HR TG+ L     GLAGV L
Sbjct:    71 QPTSPHLTIYKFPLPAVMSIMHRATGICLALGITGLAGVTL 111

GO:0045281 "succinate dehydrogenase complex" evidence=IEA

GO:0016627 "oxidoreductase activity, acting on the CH-CH group of donors" evidence=IEA

GO:0006099 "tricarboxylic acid cycle" evidence=IEA;ISS

GO:0000104 "succinate dehydrogenase activity" evidence=IEA

GO:0020037 "heme binding" evidence=ISS

GO:0006121 "mitochondrial electron transport, succinate to ubiquinone" evidence=ISS

GO:0005749 "mitochondrial respiratory chain complex II" evidence=ISS

GO:0005743 "mitochondrial inner membrane" evidence=IEA;ISS

GO:0046872 "metal ion binding" evidence=IEA

GO:0022900 "electron transport chain" evidence=IEA

GO:0016021 "integral to membrane" evidence=IEA

GO:0016020 "membrane" evidence=IEA

GO:0005739 "mitochondrion" evidence=IEA

GO:0044351 "macropinocytosis" evidence=RCA

---

Prediction of Enzyme Commission (EC) Number

EC Number Prediction by Annotation Transfer from SWISS-PROT Entries

Original result of BLAST against SWISS-PROT

No confident hit for EC number transfering in SWISSPROT detected by BLAST

EC Number Prediction by EFICAz Software

No EC number assignment, probably not an enzyme!

---

Conserved Domains and Related Protein Families

Conserved Domains Detected by RPS-BLAST

Original result of RPS-BLAST against CDD database

ID	Length	Definition	E-value
Query	106
cd03499	117	cd03499, SQR_TypeC_SdhC, Succinate:quinone oxidore	1e-13
TIGR02970	120	TIGR02970, succ_dehyd_cytB, succinate dehydrogenas	1e-10
pfam01127	123	pfam01127, Sdh_cyt, Succinate dehydrogenase/Fumara	3e-09
COG2009	132	COG2009, SdhC, Succinate dehydrogenase/fumarate re	6e-07
PLN00130	213	PLN00130, PLN00130, succinate dehydrogenase (SDH3)	1e-04
PLN00127	178	PLN00127, PLN00127, succinate dehydrogenase (ubiqu	2e-04
PLN00126	129	PLN00126, PLN00126, succinate dehydrogenase, cytoc	0.001

>gnl|CDD|239579 cd03499, SQR_TypeC_SdhC, Succinate:quinone oxidoreductase (SQR) Type C subfamily, Succinate dehydrogenase C (SdhC) subunit; composed of bacterial SdhC and eukaryotic large cytochrome b binding (CybL) proteins

 Score = 61.0 bits (149), Expect = 1e-13
 Identities = 22/37 (59%), Positives = 26/37 (70%)

Query: 54 RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          RPLSPHLTIY+  +T++LSI HR TGVAL      L 
Sbjct: 1  RPLSPHLTIYRPPLTAILSILHRITGVALFLGLPLLL 37

SQR catalyzes the oxidation of succinate to fumarate coupled to the reduction of quinone to quinol. Members of this family reduce high potential quinones such as ubiquinone. SQR is also called succinate dehydrogenase or Complex II, and is part of the citric acid cycle and the aerobic respiratory chain. SQR is composed of a flavoprotein catalytic subunit, an iron-sulfur protein and one or two hydrophobic transmembrane subunits. Proteins in this subfamily are classified as Type C SQRs because they contain two transmembrane subunits and one heme group. The heme and quinone binding sites reside in the transmembrane subunits. The SdhC or CybL protein is one of the two transmembrane subunits of bacterial and eukaryotic SQRs. The two-electron oxidation of succinate in the flavoprotein active site is coupled to the two-electron reduction of quinone in the membrane anchor subunits via electron transport through FAD and three iron-sulfur centers. The reversible reduction of quinone is an essential feature of respiration, allowing transfer of electrons between respiratory complexes. Length = 117

>gnl|CDD|234076 TIGR02970, succ_dehyd_cytB, succinate dehydrogenase, cytochrome b556 subunit

 Score = 53.3 bits (129), Expect = 1e-10
 Identities = 21/37 (56%), Positives = 24/37 (64%)

Query: 54 RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          RPLSPHL IY+  IT++LSI HR TGV L      L 
Sbjct: 3  RPLSPHLQIYRFPITAILSILHRITGVLLFFGLPFLL 39

In E. coli and many other bacteria, two small, hydrophobic, mutually homologous subunits of succinate dehydrogenase, a TCA cycle enzyme, are SdhC and SdhD. This family is the SdhC, the cytochrome b subunit, called b556 in bacteria and b560 in mitochondria. SdhD (see TIGR02968) is called the hydrophobic membrane anchor subunit, although both SdhC and SdhD participate in anchoring the complex. In some bacteria, this cytochrome b subunit is replaced my a member of the cytochrome b558 family (see TIGR02046) [Energy metabolism, TCA cycle]. Length = 120

>gnl|CDD|216313 pfam01127, Sdh_cyt, Succinate dehydrogenase/Fumarate reductase transmembrane subunit

 Score = 50.1 bits (120), Expect = 3e-09
 Identities = 21/44 (47%), Positives = 27/44 (61%)

Query: 51 RLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGL 94
          R  RPLSPHL +Y+  + ++LSI HR TGVAL    + L    L
Sbjct: 2  RKNRPLSPHLGLYRAHLGTILSILHRITGVALAVLLIHLLLWLL 45

This family includes a transmembrane protein from both the Succinate dehydrogenase and Fumarate reductase complexes. Length = 123

>gnl|CDD|224920 COG2009, SdhC, Succinate dehydrogenase/fumarate reductase, cytochrome b subunit [Energy production and conversion]

 Score = 44.3 bits (105), Expect = 6e-07
 Identities = 17/32 (53%), Positives = 21/32 (65%)

Query: 54 RPLSPHLTIYKLQITSVLSITHRGTGVALTAY 85
          RP+SPHL IY+  IT   SI HR +GV L  +
Sbjct: 3  RPVSPHLQIYRPPITMYASILHRISGVILAFF 34

Length = 132

>gnl|CDD|177741 PLN00130, PLN00130, succinate dehydrogenase (SDH3); Provisional

 Score = 39.0 bits (90), Expect = 1e-04
 Identities = 23/52 (44%), Positives = 33/52 (63%), Gaps = 2/52 (3%)

Query: 54  RPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLTTDINSVVPTY 105
           RPLSPHL++Y+ Q+ S+LSI +R +GV LT   +  AG  L   +  +  TY
Sbjct: 125 RPLSPHLSVYQPQMNSMLSIFNRISGVYLT--GVTFAGYLLYLKMGMICLTY 174

Length = 213

>gnl|CDD|177738 PLN00127, PLN00127, succinate dehydrogenase (ubiquinone) cytochrome b subunit; Provisional

 Score = 38.3 bits (89), Expect = 2e-04
 Identities = 18/49 (36%), Positives = 25/49 (51%), Gaps = 7/49 (14%)

Query: 53 GRPLSPHL-------TIYKLQITSVLSITHRGTGVALTAYALGLAGVGL 94
           RPLSP +       T YK  + ++ SIT+R TG  L+  A G   + L
Sbjct: 51 KRPLSPDVMDIDGKSTHYKFPVVALSSITNRVTGCVLSGGAAGGGVLAL 99

Length = 178

>gnl|CDD|165695 PLN00126, PLN00126, succinate dehydrogenase, cytochrome b subunit family; Provisional

 Score = 35.9 bits (82), Expect = 0.001
 Identities = 21/56 (37%), Positives = 30/56 (53%), Gaps = 1/56 (1%)

Query: 30  IKPVAAPTGV-PSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
            +P  +P+G  P      +      RPLSPHL + K Q+++  SI+HR  G AL A
Sbjct: 57  QRPKMSPSGSRPLHTSRPLSAPVANRPLSPHLPLKKPQLSATFSISHRIFGAALGA 112

Length = 129

Conserved Domains Detected by HHsearch

Original result of HHsearch against CDD database

ID	Length	Definition	Probability
Query	106
KOG0449|consensus	168		99.83
PRK09487	129	sdhC succinate dehydrogenase cytochrome b556 large	99.81
PLN00127	178	succinate dehydrogenase (ubiquinone) cytochrome b	99.77
PLN00130	213	succinate dehydrogenase (SDH3); Provisional	99.7
TIGR02970	120	succ_dehyd_cytB succinate dehydrogenase, cytochrom	99.67
cd03499	117	SQR_TypeC_SdhC Succinate:quinone oxidoreductase (S	99.66
PLN00126	129	succinate dehydrogenase, cytochrome b subunit fami	99.66
COG2009	132	SdhC Succinate dehydrogenase/fumarate reductase, c	99.06
PLN00131	218	hypothetical protein; Provisional	98.95
PF01127	121	Sdh_cyt: Succinate dehydrogenase/Fumarate reductas	98.91
cd03501	101	SQR_TypeA_SdhC_like Succinate:quinone oxidoreducta	95.86
TIGR02968	105	succ_dehyd_anc succinate dehydrogenase, hydrophobi	95.47
cd03494	99	SQR_TypeC_SdhD Succinate:quinone oxidoreductase (S	95.02
cd03500	106	SQR_TypeA_SdhD_like Succinate:quinone oxidoreducta	94.35
cd03493	98	SQR_QFR_TM Succinate:quinone oxidoreductase (SQR)	93.82

>KOG0449|consensus

Probab=99.83  E-value=2.8e-21  Score=146.68  Aligned_cols=67  Identities=43%  Similarity=0.606  Sum_probs=60.0

Q ss_pred             CCCccchhhhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH--HHHHHhcCCCCHHHHhhhc
Q psy9435          39 VPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA--LGLAGVGLTTDINSVVPTY  105 (106)
Q Consensus        39 ~~~~~~~~~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~--~~l~sl~~p~~f~~~~~~~  105 (106)
                      ++.++.++++|+|++||+||||+||+||+||++||+|||||++|++++  +|...+...++++.+++.+
T Consensus        34 ~~~~e~~~~~~~r~~RPlSPHLTIYqpQLt~~LS~~hRiSG~~la~gv~~~G~~~l~~~g~~~~~v~~~  102 (168)
T KOG0449|consen   34 TEIKERQLLKNQRSNRPLSPHLTIYQPQLTWMLSIFHRISGVVLAGGVWLVGVSGLLGMGDITATVSKV  102 (168)
T ss_pred             cccchHHHhhhhhcCCCCCCceeeechhHHHHHHHHHhhhhheehhhHHHHHHHHHhcCcchHHHHHHH
Confidence            566777899999999999999999999999999999999999999987  5556888899999988754

>PRK09487 sdhC succinate dehydrogenase cytochrome b556 large membrane subunit; Provisional

Probab=99.81  E-value=2.2e-20  Score=135.21  Aligned_cols=57  Identities=25%  Similarity=0.326  Sum_probs=49.6

Q ss_pred             hhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH----HHHH-HhcCCCCHHHHhhh
Q psy9435          48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA----LGLA-GVGLTTDINSVVPT  104 (106)
Q Consensus        48 ~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~----~~l~-sl~~p~~f~~~~~~  104 (106)
                      +|++++||+||||+|||+|+||++||+||+||++|++++    |++. ++.+||+|+.+.+.
T Consensus         3 ~~~~~~RPlsphL~iyr~~~t~~~SIlHRiSGv~L~~~~~~~~~~l~~~~~~p~~f~~~~~~   64 (129)
T PRK09487          3 RNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGILLWLLGTSLSSPEGFEQAAAI   64 (129)
T ss_pred             ccccCCCCCCCCcceeccchhHHHHHHHHhHhHHHHHHHHHHHHHHHHHccCHHHHHHHHHH
Confidence            456678999999999999999999999999999998876    5554 67789999998764

>PLN00127 succinate dehydrogenase (ubiquinone) cytochrome b subunit; Provisional

Probab=99.77  E-value=2.4e-19  Score=136.78  Aligned_cols=62  Identities=35%  Similarity=0.402  Sum_probs=53.6

Q ss_pred             cchhhhhhccCCCCCCCc-------cccccchhhHHHHHHHHHHHHHHHHH--HH-HHHhcCCCCHHHHhhh
Q psy9435          43 EGHAVRNERLGRPLSPHL-------TIYKLQITSVLSITHRGTGVALTAYA--LG-LAGVGLTTDINSVVPT  104 (106)
Q Consensus        43 ~~~~~~~~r~~RPvSPhL-------~iYr~~lt~i~SIlHRiTGv~L~~~~--~~-l~sl~~p~~f~~~~~~  104 (106)
                      ++++.++++++||+||||       +|||||+||++||+|||||++|++++  ++ +..+.+||+|+.+.+.
T Consensus        41 ~~~~~~~~~~~RPlSPHL~~~~~~~tiYk~pltai~SIlHRITGv~L~~g~~~~~l~~l~~~~e~f~~~~~~  112 (178)
T PLN00127         41 TPKNHRMLLEKRPLSPDVMDIDGKSTHYKFPVVALSSITNRVTGCVLSGGAAGGGVLALVGGSEAVPATMEG  112 (178)
T ss_pred             CChhhHHHhcCCCCCcccccccCCCcEEeccchhhhhHHHHHHHHHHHHHHHHHHHHHHHcCHHHHHHHHHH
Confidence            468899999999999999       99999999999999999999999988  33 3455679999887653

>PLN00130 succinate dehydrogenase (SDH3); Provisional

Probab=99.70  E-value=1.6e-17  Score=129.24  Aligned_cols=59  Identities=34%  Similarity=0.353  Sum_probs=50.5

Q ss_pred             hhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH--HHHHHh---cCCCCHHHHhhhc
Q psy9435          47 VRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA--LGLAGV---GLTTDINSVVPTY  105 (106)
Q Consensus        47 ~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~--~~l~sl---~~p~~f~~~~~~~  105 (106)
                      +.+.|.+||+||||+|||||+||++||+|||||++|++++  ++++.+   ..+-+|+.|.+++
T Consensus       118 ~~~~RlnRPlSPHLqIYrpQLTs~lSI~HRITGvaLsg~ly~f~la~lK~G~i~~t~~~FyQf~  181 (213)
T PLN00130        118 EPKIKSFRPLSPHLSVYQPQMNSMLSIFNRISGVYLTGVTFAGYLLYLKMGMICLTYPSFYQVL  181 (213)
T ss_pred             hhhccCCCCCCCccccccccchhhhhHHHHHHHHHHHHHHHHHHHHHHHhccccccchhHHHHH
Confidence            7778999999999999999999999999999999999998  555666   4466777776654

>TIGR02970 succ_dehyd_cytB succinate dehydrogenase, cytochrome b556 subunit

Probab=99.67  E-value=5.5e-17  Score=114.35  Aligned_cols=53  Identities=42%  Similarity=0.533  Sum_probs=45.2

Q ss_pred             cCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH----HHHH-HhcCCCCHHHHhhh
Q psy9435          52 LGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA----LGLA-GVGLTTDINSVVPT  104 (106)
Q Consensus        52 ~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~----~~l~-sl~~p~~f~~~~~~  104 (106)
                      ++||+||||++||+|+++++||+|||||++|++++    +++. ...+|++|+.+.+.
T Consensus         1 ~~RP~sphl~~yr~~~~~~~silhRiTGv~l~~~~~~~~~~l~~~~~~~~~~~~~~~~   58 (120)
T TIGR02970         1 KQRPLSPHLQIYRFPITAILSILHRITGVLLFFGLPFLLWWLSLSLSSPESFATVHAL   58 (120)
T ss_pred             CCCCCCCCcCcccccHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHhcCHHHHHHHHHH
Confidence            46999999999999999999999999999999876    4343 45678999887664

In E. coli and many other bacteria, two small, hydrophobic, mutually homologous subunits of succinate dehydrogenase, a TCA cycle enzyme, are SdhC and SdhD. This family is the SdhC, the cytochrome b subunit, called b556 in bacteria and b560 in mitochondria. SdhD (see TIGR02968) is called the hydrophobic membrane anchor subunit, although both SdhC and SdhD participate in anchoring the complex. In some bacteria, this cytochrome b subunit is replaced my a member of the cytochrome b558 family (see TIGR02046).

>cd03499 SQR_TypeC_SdhC Succinate:quinone oxidoreductase (SQR) Type C subfamily, Succinate dehydrogenase C (SdhC) subunit; composed of bacterial SdhC and eukaryotic large cytochrome b binding (CybL) proteins

Probab=99.66  E-value=7.8e-17  Score=112.19  Aligned_cols=51  Identities=49%  Similarity=0.613  Sum_probs=44.2

Q ss_pred             CCCCCCccccccchhhHHHHHHHHHHHHHHHHH----HHH-HHhcCCCCHHHHhhh
Q psy9435          54 RPLSPHLTIYKLQITSVLSITHRGTGVALTAYA----LGL-AGVGLTTDINSVVPT  104 (106)
Q Consensus        54 RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~----~~l-~sl~~p~~f~~~~~~  104 (106)
                      ||+|||+++||||++|++||+||+||++|++++    +++ .+..+|++|+.+.+.
T Consensus         1 rP~sphl~iY~~~~~~~~Si~hRiSGv~L~~~~~~~~~~~~~~~~~~~~y~~~~~~   56 (117)
T cd03499           1 RPLSPHLTIYRPPLTAILSILHRITGVALFLGLPLLLWWLLASLSSPESFESVSAL   56 (117)
T ss_pred             CCCCCccccccccHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHhcCHHHHHHHHHH
Confidence            899999999999999999999999999999988    333 345579999988764

SQR catalyzes the oxidation of succinate to fumarate coupled to the reduction of quinone to quinol. Members of this family reduce high potential quinones such as ubiquinone. SQR is also called succinate dehydrogenase or Complex II, and is part of the citric acid cycle and the aerobic respiratory chain. SQR is composed of a flavoprotein catalytic subunit, an iron-sulfur protein and one or two hydrophobic transmembrane subunits. Proteins in this subfamily are classified as Type C SQRs because they contain two transmembrane subunits and one heme group. The heme and quinone binding sites reside in the transmembrane subunits. The SdhC or CybL protein is one of the two transmembrane subunits of bacterial and eukaryotic SQRs. The two-electron oxidation of succinate in the flavoprotein a

>PLN00126 succinate dehydrogenase, cytochrome b subunit family; Provisional

Probab=99.66  E-value=7.8e-17  Score=117.70  Aligned_cols=43  Identities=40%  Similarity=0.546  Sum_probs=40.2

Q ss_pred             chhhhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH
Q psy9435          44 GHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA   86 (106)
Q Consensus        44 ~~~~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~   86 (106)
                      +....++|++||+||||+|||||+||++||+|||||++|++++
T Consensus        72 s~~L~~qRlnRPLSPHLqIYRpQLT~~lSI~HRITGvaLs~~i  114 (129)
T PLN00126         72 SRPLSAPVANRPLSPHLPLKKPQLSATFSISHRIFGAALGAAI  114 (129)
T ss_pred             ccccchhhcCCCCCCccccccccchhhhhHHHHHHHHHHHHHH
Confidence            3567889999999999999999999999999999999999887

>COG2009 SdhC Succinate dehydrogenase/fumarate reductase, cytochrome b subunit [Energy production and conversion]

Probab=99.06  E-value=2.1e-10  Score=82.72  Aligned_cols=32  Identities=53%  Similarity=0.748  Sum_probs=30.4

Q ss_pred             cCCCCCCCccccccchhhHHHHHHHHHHHHHH
Q psy9435          52 LGRPLSPHLTIYKLQITSVLSITHRGTGVALT   83 (106)
Q Consensus        52 ~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~   83 (106)
                      .+||++||+++||+++++.+||+||+||+++.
T Consensus         1 ~~r~~~~~l~~~~~~~~~~~silHRitGv~l~   32 (132)
T COG2009           1 RKRPVSPHLQIYRPPITMYASILHRISGVILA   32 (132)
T ss_pred             CCCCCCCccceeecchHHHHHHHHHhHHHHHH
Confidence            36999999999999999999999999999995

>PLN00131 hypothetical protein; Provisional

Probab=98.95  E-value=5.5e-10  Score=86.63  Aligned_cols=29  Identities=52%  Similarity=0.707  Sum_probs=27.2

Q ss_pred             hccCCCCCCCccccccchhhHHHHHHHHH
Q psy9435          50 ERLGRPLSPHLTIYKLQITSVLSITHRGT   78 (106)
Q Consensus        50 ~r~~RPvSPhL~iYr~~lt~i~SIlHRiT   78 (106)
                      |+.+||+||||+||++|+||++||+|||-
T Consensus         1 m~inRPvSPHL~IYkPQlTw~~Si~hRif   29 (218)
T PLN00131          1 MHILRPLSPHLPIYKPQLTSAFPIFRRCF   29 (218)
T ss_pred             CCCCCCCCCCccccchhhhhhHHHHHHHH
Confidence            46789999999999999999999999986

>PF01127 Sdh_cyt: Succinate dehydrogenase/Fumarate reductase transmembrane subunit; InterPro: IPR000701 This entry includes the transmembrane subunit from both succinate dehydrogenase and fumarate reductase complexes

Probab=98.91  E-value=6.5e-10  Score=75.73  Aligned_cols=55  Identities=31%  Similarity=0.315  Sum_probs=38.7

Q ss_pred             hccCCCCCCCccccccchhhHHHHHHHHHHHHHHH-HH----HHHH--HhcCCCCHHHHhhh
Q psy9435          50 ERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTA-YA----LGLA--GVGLTTDINSVVPT  104 (106)
Q Consensus        50 ~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~-~~----~~l~--sl~~p~~f~~~~~~  104 (106)
                      ||.+||++||.++||++..+..+++||+||++|.+ .+    +.+.  ....+++|+.+.+.
T Consensus         1 ~~~~r~~~p~~~~~~~~~~~~~~~~qRiTgi~L~~~~~~~~~~~~~~~~~~~~~~~~~~~~~   62 (121)
T PF01127_consen    1 MRSNRPRSPHRGIYRFHSGTWAWILQRITGIILLLLFLHLHIWFLLSALGGGPISYDEVVAF   62 (121)
T ss_dssp             --ST--BHHCTTTST--HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCSSHHHHHHHHHH
T ss_pred             CCCCCCCCcccceecCCcchHHHHHHHHHHHHHHHHHHHHHHHHHhhhhcCCHhhHHHHHHH
Confidence            68899999999999999999999999999999998 33    1122  23457788887654

Fumarate reductase couples the reduction of fumarate to succinate to the oxidation of quinol to quinone, in a reaction opposite to that catalysed by the related complex II of the respiratory chain (succinate dehydrogenase) []. Three protein subunits contain the fumarate reductase complex. Subunit A contains the site of fumarate reduction and a covalently bound flavin adenine dinucleotide prosthetic group. Subunit B contains three iron-sulphur centres. The menaquinol-oxidizing subunit C consists of five membrane-spanning, primarily helical segments and binds two haem b molecules []. Succinate dehydrogenase (SDH) is a membrane-bound complex of two main components: a membrane-extrinsic component composed of an FAD-binding flavoprotein and an iron-sulphur protein, and a hydrophobic component composed of a cytochrome b and a membrane anchor protein. The cytochrome b component is a mono-haem transmembrane protein [, , ] belonging to a family that includes: Cytochrome b-556 from bacterial SDH (gene sdhC). Cytochrome b560 from the mammalian mitochondrial SDH complex, which is encoded in the mitochondrial genome of some algae and in the plant Marchantia polymorpha. Cytochrome b from yeast mitochondrial SDH complex (gene SDH3 or CYB3). Protein cyt-1 from Caenorhabditis elegans. These cytochromes are proteins of about 130 residues that comprise three transmembrane regions. There are two conserved histidines which may be involved in binding the haem group.; GO: 0016627 oxidoreductase activity, acting on the CH-CH group of donors; PDB: 2WDQ_H 1NEN_D 2WP9_L 2WDV_H 2ACZ_D 2WS3_L 2WU2_H 2WDR_D 2WU5_H 1NEK_D ....

>cd03501 SQR_TypeA_SdhC_like Succinate:quinone oxidoreductase (SQR) Type A subfamily, Succinate dehydrogenase C (SdhC)-like subunit; SQR catalyzes the oxidation of succinate to fumarate coupled to the reduction of quinone to quinol

Probab=95.86  E-value=0.01  Score=39.87  Aligned_cols=36  Identities=33%  Similarity=0.353  Sum_probs=25.7

Q ss_pred             HHHHHHHHHHHHHHHHH----HHHH-HhcCCCCHHHHhhhc
Q psy9435          70 VLSITHRGTGVALTAYA----LGLA-GVGLTTDINSVVPTY  105 (106)
Q Consensus        70 i~SIlHRiTGv~L~~~~----~~l~-sl~~p~~f~~~~~~~  105 (106)
                      .+-++||+||+++.+.+    +.+. ...++++|+.+.+.+
T Consensus         2 ~~~~lhRitGi~L~~fl~~hl~~~~~~~~~~~~y~~~~~~~   42 (101)
T cd03501           2 WAWVLHRITGVVILFYLFLHVLDLSSLRRGPETYNAVIATY   42 (101)
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHHHHHhcCHHHHHHHHHHH
Confidence            35689999999998876    3333 344688888886643

Members of this subfamily reduce low potential quinones such as menaquinone and thermoplasmaquinone. SQR is also called succinate dehydrogenase or Complex II, and is part of the citric acid cycle and the aerobic respiratory chain. SQR is composed of a flavoprotein catalytic subunit, an iron-sulfur protein and one or two hydrophobic transmembrane subunits. Members of this subfamily are similar to the Thermoplasma acidophilum SQR and are classified as Type A because they contain two transmembrane subunits as well as two heme groups. Although there are no structures available for this subfamily, the presence of two hemes has been proven spectroscopically for T. acidophilum. The two membrane anchor subunits are similar to the SdhD and SdhC subunits of bacteria

>TIGR02968 succ_dehyd_anc succinate dehydrogenase, hydrophobic membrane anchor protein

Probab=95.47  E-value=0.028  Score=38.53  Aligned_cols=33  Identities=15%  Similarity=0.110  Sum_probs=23.5

Q ss_pred             HHHHHHHHHHHHHH-HHHH--HhcCCCCHHHHhhhc
Q psy9435          73 ITHRGTGVALTAYA-LGLA--GVGLTTDINSVVPTY  105 (106)
Q Consensus        73 IlHRiTGv~L~~~~-~~l~--sl~~p~~f~~~~~~~  105 (106)
                      ++||+||++|...+ |++.  ....+++|+.+.+.+
T Consensus         9 ~~~RiSgv~L~~l~~~~~~~~~~~~~~~y~~~~~~~   44 (105)
T TIGR02968         9 LLQRVTAVVLALYTIFLIGFLLALPGLTYEAWRALF   44 (105)
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHcCCCCHHHHHHHH
Confidence            57999999998877 4443  333466898887643

In E. coli and many other bacteria, two small, hydrophobic, mutually homologous subunits of succinate dehydrogenase, a TCA cycle enzyme, are SdhC and SdhD. This family is the SdhD, the hydrophobic membrane anchor protein. SdhC is apocytochrome b558, which also plays a role in anchoring the complex.

>cd03494 SQR_TypeC_SdhD Succinate:quinone oxidoreductase (SQR) Type C subfamily, Succinate dehydrogenase D (SdhD) subunit; SQR catalyzes the oxidation of succinate to fumarate coupled to the reduction of quinone to quinol

Probab=95.02  E-value=0.046  Score=37.74  Aligned_cols=33  Identities=12%  Similarity=0.143  Sum_probs=24.7

Q ss_pred             HHHHHHHHHHHHHH-HHHH--HhcCCCCHHHHhhhc
Q psy9435          73 ITHRGTGVALTAYA-LGLA--GVGLTTDINSVVPTY  105 (106)
Q Consensus        73 IlHRiTGv~L~~~~-~~l~--sl~~p~~f~~~~~~~  105 (106)
                      ++||+||++|...+ +.+.  ...+++||+...+.+
T Consensus         3 ~~qRiSav~L~~l~~~~v~~~~~~~~~~y~~~~~~~   38 (99)
T cd03494           3 LVQRVTAVIMALYTIFLVGFLLASPPLTYEAWSGLF   38 (99)
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHcCCCCHHHHHHHH
Confidence            47999999999887 3332  344689999988754

E. coli SQR, a member of this subfamily, reduces the high potential quinine, ubiquinone. SQR is also called succinate dehydrogenase or Complex II, and is part of the citric acid cycle and the aerobic respiratory chain. SQR is composed of a flavoprotein catalytic subunit, an iron-sulfur protein and one or two hydrophobic transmembrane subunits. Members of this subfamily are classified as Type C SQRs because they contain two transmembrane subunits and one heme group. SdhD and SdhC are the two transmembrane proteins of bacterial SQRs. They contain heme and quinone binding sites. The two-electron oxidation of succinate in the flavoprotein active site is coupled to the two-electron reduction of quinone in the membrane anchor subunits via electron transport through FAD an

>cd03500 SQR_TypeA_SdhD_like Succinate:quinone oxidoreductase (SQR) Type A subfamily, Succinate dehydrogenase D (SdhD)-like subunit; SQR catalyzes the oxidation of succinate to fumarate coupled to the reduction of quinone to quinol

Probab=94.35  E-value=0.084  Score=35.88  Aligned_cols=33  Identities=24%  Similarity=0.064  Sum_probs=23.4

Q ss_pred             HHHHHHHHHHHHHHH-HHH---HH-h-cCCCCHHHHhhh
Q psy9435          72 SITHRGTGVALTAYA-LGL---AG-V-GLTTDINSVVPT  104 (106)
Q Consensus        72 SIlHRiTGv~L~~~~-~~l---~s-l-~~p~~f~~~~~~  104 (106)
                      =++||+||++|.+.+ +-+   .. . ..+++|+...+.
T Consensus         5 w~~qRiTgv~L~~~l~~hi~~~~~~~~~~~~~~~~~~~~   43 (106)
T cd03500           5 WLFQRITGVFLVFLLAGHFWVQHMDNGGDVIDFAFVANR   43 (106)
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHHhccCCccCHHHHHHH
Confidence            378999999999887 222   22 2 268899987764

Members of this subfamily reduce low potential quinones such as menaquinone and thermoplasmaquinone. SQR is also called succinate dehydrogenase or Complex II, and is part of the citric acid cycle and the aerobic respiratory chain. SQR is composed of a flavoprotein catalytic subunit, an iron-sulfur protein and one or two hydrophobic transmembrane subunits. Members of this subfamily are similar to the Thermoplasma acidophilum SQR and are classified as Type A because they contain two transmembrane subunits as well as two heme groups. Although there are no structures available for this subfamily, the presence of two hemes has been proven spectroscopically for T. acidophilum. The two membrane anchor subunits are similar to the SdhD and SdhC subunits of bacterial

>cd03493 SQR_QFR_TM Succinate:quinone oxidoreductase (SQR) and Quinol:fumarate reductase (QFR) family, transmembrane subunits; SQR catalyzes the oxidation of succinate to fumarate coupled to the reduction of quinone to quinol, while QFR catalyzes the reverse reaction

Probab=93.82  E-value=0.036  Score=35.24  Aligned_cols=14  Identities=57%  Similarity=0.695  Sum_probs=12.4

Q ss_pred             HHHHHHHHHHHHHH
Q psy9435          73 ITHRGTGVALTAYA   86 (106)
Q Consensus        73 IlHRiTGv~L~~~~   86 (106)
                      ++||+||++|.+.+
T Consensus         1 ~~~Ritgv~l~~~~   14 (98)
T cd03493           1 ILHRITGVALLLFL   14 (98)
T ss_pred             CeehhhHHHHHHHH
Confidence            47999999999887

SQR, also called succinate dehydrogenase or Complex II, is part of the citric acid cycle and the aerobic respiratory chain, while QFR is involved in anaerobic respiration with fumarate as the terminal electron acceptor. SQRs may reduce either high or low potential quinones while QFRs oxidize only low potential quinols. SQR and QFR share a common subunit arrangement, composed of a flavoprotein catalytic subunit, an iron-sulfur protein and one or two hydrophobic transmembrane subunits. The structural arrangement allows efficient electron transfer between the catalytic subunit, through iron-sulfur centers, and the transmembrane subunit(s) containing the electron donor/acceptor (quinol or quinone). The reversible reduction of

---

Homologous Structure Templates

Structure Templates Detected by BLAST

Original result of BLAST against Protein Data Bank

ID	Length	Definition	E-value
Query	106
2fbw_C	141	Avian Respiratory Complex Ii With Carboxin Bound Le		3e-07
2h88_C	140	Avian Mitochondrial Respiratory Complex Ii At 1.8 A		3e-07
1yq3_C	141	Avian Respiratory Complex Ii With Oxaloacetate And		3e-07
1zoy_C	140	Crystal Structure Of Mitochondrial Respiratory Comp		8e-07
3vr8_C	188	Mitochondrial Rhodoquinol-Fumarate Reductase From T		2e-05

>pdb|2FBW|C Chain C, Avian Respiratory Complex Ii With Carboxin Bound Length = 141

Iteration: 1
 Score = 50.4 bits (119), Expect = 3e-07,   Method: Compositional matrix adjust.
 Identities = 21/36 (58%), Positives = 28/36 (77%)
Query: 48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALT 83
          +N +  RPLSPH++IYK  +   +SITHRGTGVAL+
Sbjct: 15 KNTKSSRPLSPHISIYKWSLPMAMSITHRGTGVALS 50

>pdb|2H88|C Chain C, Avian Mitochondrial Respiratory Complex Ii At 1.8 Angstrom Resolution Length = 140

Iteration: 1
 Score = 50.4 bits (119), Expect = 3e-07,   Method: Compositional matrix adjust.
 Identities = 21/36 (58%), Positives = 28/36 (77%)
Query: 48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALT 83
          +N +  RPLSPH++IYK  +   +SITHRGTGVAL+
Sbjct: 15 KNTKSSRPLSPHISIYKWSLPMAMSITHRGTGVALS 50

>pdb|1YQ3|C Chain C, Avian Respiratory Complex Ii With Oxaloacetate And Ubiquinone Length = 141

Iteration: 1
 Score = 50.1 bits (118), Expect = 3e-07,   Method: Compositional matrix adjust.
 Identities = 21/36 (58%), Positives = 28/36 (77%)
Query: 48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALT 83
          +N +  RPLSPH++IYK  +   +SITHRGTGVAL+
Sbjct: 15 KNTKSSRPLSPHISIYKWSLPMAMSITHRGTGVALS 50

>pdb|1ZOY|C Chain C, Crystal Structure Of Mitochondrial Respiratory Complex Ii From Porcine Heart At 2.4 Angstroms Length = 140

Iteration: 1
 Score = 48.9 bits (115), Expect = 8e-07,   Method: Compositional matrix adjust.
 Identities = 23/45 (51%), Positives = 31/45 (68%), Gaps = 2/45 (4%)
Query: 42 KEGHAVRNERLG--RPLSPHLTIYKLQITSVLSITHRGTGVALTA 84
          +E     N+ LG  RPLSPH+TIY+  +   +SI HRGTG+AL+A
Sbjct: 7  EEMERFWNKNLGSNRPLSPHITIYRWSLPMAMSICHRGTGIALSA 51

>pdb|3VR8|C Chain C, Mitochondrial Rhodoquinol-Fumarate Reductase From The Parasitic Nematode Ascaris Suum Length = 188

Iteration: 1
 Score = 44.3 bits (103), Expect = 2e-05,   Method: Compositional matrix adjust.
 Identities = 24/51 (47%), Positives = 34/51 (66%), Gaps = 1/51 (1%)
Query: 45 HAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLAGVGLT 95
          + +R   L RP++PHLTIYK Q+T ++S  HR TG A+ A  L + GVG +
Sbjct: 45 YLMRQRALKRPIAPHLTIYKPQMTWMVSGLHRVTGCAM-AGTLLIGGVGFS 94

Structure Templates Detected by RPS-BLAST

Original result of RPS-BLAST against PDB70 database

ID	Length	Definition	E-value
Query	106
2wdq_C	129	Succinate dehydrogenase cytochrome B556 subunit; s	2e-15
2h88_C	140	Succinate dehydrogenase cytochrome B, large subun;	1e-14
1zoy_C	140	Large cytochrome binding protein, FAD-binding prot	4e-14
3vr8_C	188	Cytochrome B-large subunit; membrane protein, redu	2e-12

>2wdq_C Succinate dehydrogenase cytochrome B556 subunit; succinate dehydrogenase activity, cell inner membrane, trica acid cycle; HET: FAD HEM CBE; 2.40A {Escherichia coli} PDB: 1nen_C* 2acz_C* 1nek_C* 2wdr_C* 2wdv_C* 2wp9_C* 2ws3_C* 2wu5_C* 2wu2_C* Length = 129

 Score = 65.9 bits (161), Expect = 2e-15
 Identities = 14/43 (32%), Positives = 21/43 (48%)

Query: 48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          RN +  RP++  L   +  IT++ SI HR +GV        L 
Sbjct: 3  RNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGILL 45

>2h88_C Succinate dehydrogenase cytochrome B, large subun; complex II, membrane protein, heme protein, iron sulfur PROT cytochrome B, oxidoreductase; HET: FAD BHG HEM UNL; 1.74A {Gallus gallus} PDB: 2h89_C* 1yq3_C* 1yq4_C* 2fbw_C* 2wqy_C* Length = 140

 Score = 63.9 bits (155), Expect = 1e-14
 Identities = 23/56 (41%), Positives = 31/56 (55%)

Query: 35 APTGVPSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          A T          +N +  RPLSPH++IYK  +   +SITHRGTGVAL+      +
Sbjct: 2  ATTAKEEMARFWEKNTKSSRPLSPHISIYKWSLPMAMSITHRGTGVALSLGVSLFS 57

>1zoy_C Large cytochrome binding protein, FAD-binding protein; succinate, ubiquinone oxidoreductase, mitochondrial respiratory complex II; HET: FAD HEM EPH UQ1; 2.40A {Sus scrofa} PDB: 1zp0_C* 3abv_C* 3ae1_C* 3ae2_C* 3ae3_C* 3ae4_C* 3ae5_C* 3ae6_C* 3ae7_C* 3ae8_C* 3ae9_C* 3aea_C* 3aeb_C* 3aec_C* 3aed_C* 3aee_C* 3aef_C* 3aeg_C* 3sfd_C* 3sfe_C* Length = 140

 Score = 62.7 bits (152), Expect = 4e-14
 Identities = 20/43 (46%), Positives = 27/43 (62%)

Query: 48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          +N    RPLSPH+TIY+  +   +SI HRGTG+AL+A      
Sbjct: 15 KNLGSNRPLSPHITIYRWSLPMAMSICHRGTGIALSAGVSLFG 57

>3vr8_C Cytochrome B-large subunit; membrane protein, reductase, mitochondria MEMB oxidoreductase; HET: FAD HEM RQX EPH; 2.81A {Ascaris suum} PDB: 3vrb_C* Length = 188

 Score = 59.1 bits (142), Expect = 2e-12
 Identities = 27/91 (29%), Positives = 47/91 (51%), Gaps = 2/91 (2%)

Query: 1  MNSIFKLSTLCNPIASSHLRLLPHIRTITIKPVAAPTGVPSK-EGHAVRNERLGRPLSPH 59
          M+ +   +TLC  +  + ++ +  ++T   +  A  T +      + +R   L RP++PH
Sbjct: 1  MSLLPYNATLCRVLRHN-VKFIRSVQTSAARVSAEKTPIQVWGWDYLMRQRALKRPIAPH 59

Query: 60 LTIYKLQITSVLSITHRGTGVALTAYALGLA 90
          LTIYK Q+T ++S  HR TG A+    L   
Sbjct: 60 LTIYKPQMTWMVSGLHRVTGCAMAGTLLIGG 90

Structure Templates Detected by HHsearch

Original result of HHsearch against PDB70 database

ID	Length	Definition	Probability
Query	106
1zoy_C	140	Large cytochrome binding protein, FAD-binding prot	99.86
2h88_C	140	Succinate dehydrogenase cytochrome B, large subun;	99.86
3vr8_C	188	Cytochrome B-large subunit; membrane protein, redu	99.85
2wdq_C	129	Succinate dehydrogenase cytochrome B556 subunit; s	99.79
2wdq_D	115	Succinate dehydrogenase hydrophobic membrane ANCH	96.12

>1zoy_C Large cytochrome binding protein, FAD-binding protein; succinate, ubiquinone oxidoreductase, mitochondrial respiratory complex II; HET: FAD HEM EPH UQ1; 2.40A {Sus scrofa} PDB: 1zp0_C* 3abv_C* 3ae1_C* 3ae2_C* 3ae3_C* 3ae4_C* 3ae5_C* 3ae6_C* 3ae7_C* 3ae8_C* 3ae9_C* 3aea_C* 3aeb_C* 3aec_C* 3aed_C* 3aee_C* 3aef_C* 3aeg_C* 3sfd_C* 3sfe_C*

Probab=99.86  E-value=1e-22  Score=146.77  Aligned_cols=66  Identities=38%  Similarity=0.562  Sum_probs=58.0

Q ss_pred             CCccchhhhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH--HHHHHhcCCCCHHHHhhhc
Q psy9435          40 PSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA--LGLAGVGLTTDINSVVPTY  105 (106)
Q Consensus        40 ~~~~~~~~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~--~~l~sl~~p~~f~~~~~~~  105 (106)
                      +++++++++|+|++||+||||+|||||+||++||+|||||++|++++  ...+++.+|++|+.+.+.+
T Consensus         7 ~~~~~~~~~~~~~~RP~sphL~iYr~~~t~~~SIlHRiTGv~L~~~l~~~~~~~l~~p~~~~~~~~~~   74 (140)
T 1zoy_C            7 EEMERFWNKNLGSNRPLSPHITIYRWSLPMAMSICHRGTGIALSAGVSLFGLSALLLPGNFESHLELV   74 (140)
T ss_dssp             HHHHHHHHHHHSSCCCBCCCTTTSCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHSCSCHHHHHHHH
T ss_pred             hhHHHHHHhhhhcCCCCCCCCCcccccHHHHHHHHHHHHHHHHHHHHHHHHHHHHcCHHHHHHHHHHH
Confidence            45667889999999999999999999999999999999999999988  3345778999999987654

>2h88_C Succinate dehydrogenase cytochrome B, large subun; complex II, membrane protein, heme protein, iron sulfur PROT cytochrome B, oxidoreductase; HET: FAD BHG HEM UNL; 1.74A {Gallus gallus} PDB: 2h89_C* 1yq3_C* 1yq4_C* 2fbw_C* 2wqy_C*

Probab=99.86  E-value=1.1e-22  Score=146.75  Aligned_cols=66  Identities=38%  Similarity=0.550  Sum_probs=58.0

Q ss_pred             CCccchhhhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH--HHHHHhcCCCCHHHHhhhc
Q psy9435          40 PSKEGHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA--LGLAGVGLTTDINSVVPTY  105 (106)
Q Consensus        40 ~~~~~~~~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~--~~l~sl~~p~~f~~~~~~~  105 (106)
                      +++++++++|+|++||+||||+|||||+||++||+|||||++|++++  ...+++.+|++|+.+.+.+
T Consensus         7 ~~~~~~~~~~~~~~RP~sphL~iYr~~lt~~~SIlHRiTGv~L~~~l~~~~~~~l~~p~~~~~~~~~~   74 (140)
T 2h88_C            7 EEMARFWEKNTKSSRPLSPHISIYKWSLPMAMSITHRGTGVALSLGVSLFSLAALLLPEQFPHYVAVV   74 (140)
T ss_dssp             HHHHHHHHHHHTSCCCBCCCTTTSCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCSSCHHHHHHHH
T ss_pred             hhHHHHHHhhhhcCCCCCCCCCcccccHHHHHHHHHHHHHHHHHHHHHHHHHHHHcCHHHHHHHHHHH
Confidence            45667889999999999999999999999999999999999999988  3335778999999987654

>3vr8_C Cytochrome B-large subunit; membrane protein, reductase, mitochondria MEMB oxidoreductase; HET: FAD HEM RQX EPH; 2.81A {Ascaris suum} PDB: 3vrb_C*

Probab=99.85  E-value=6.4e-22  Score=150.52  Aligned_cols=62  Identities=37%  Similarity=0.457  Sum_probs=55.9

Q ss_pred             chhhhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH--HHHHHhcCCCCHHHHhhhc
Q psy9435          44 GHAVRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA--LGLAGVGLTTDINSVVPTY  105 (106)
Q Consensus        44 ~~~~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~--~~l~sl~~p~~f~~~~~~~  105 (106)
                      ++.++|+|++||+||||+|||||+||++||+|||||++|++++  ++++++.+|++|+.+.+.+
T Consensus        44 ~~l~~~~r~~RPlSPHLtIYr~qlt~~~SIlHRITGv~L~~~l~l~~la~l~sp~~f~~~~~~~  107 (188)
T 3vr8_C           44 DYLMRQRALKRPIAPHLTIYKPQMTWMVSGLHRVTGCAMAGTLLIGGVGFSVLPLDFTTFVEFI  107 (188)
T ss_pred             HHHHHhhhcCCCCCCCcCeeCccHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCHHHHHHHHHHH
Confidence            4678999999999999999999999999999999999999888  4556888999999987754

>2wdq_C Succinate dehydrogenase cytochrome B556 subunit; succinate dehydrogenase activity, cell inner membrane, trica acid cycle; HET: FAD HEM CBE; 2.40A {Escherichia coli} PDB: 1nen_C* 2acz_C* 1nek_C* 2wdr_C* 2wdv_C* 2wp9_C* 2ws3_C* 2wu5_C* 2wu2_C*

Probab=99.79  E-value=4.2e-20  Score=130.59  Aligned_cols=59  Identities=24%  Similarity=0.326  Sum_probs=46.2

Q ss_pred             hhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH----HHH-HHhcCCCCHHHHhhhc
Q psy9435          47 VRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA----LGL-AGVGLTTDINSVVPTY  105 (106)
Q Consensus        47 ~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~----~~l-~sl~~p~~f~~~~~~~  105 (106)
                      ++|+|++||+||||+|||+|+++++||+|||||++|++++    +++ .++.+|++|+.+.+.+
T Consensus         2 ~~~~~~~RP~sphl~iyr~~~t~~~silhRiTGv~L~~~~~~~~~~l~~~~~~~~~~~~~~~~~   65 (129)
T 2wdq_C            2 IRNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGILLWLLGTSLSSPEGFEQASAIM   65 (129)
T ss_dssp             ------CCCBCCCGGGSCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHSCHHHHHHHHHHH
T ss_pred             CccccccCCCCCCcCccCCcHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHcCHHHHHHHHHHH
Confidence            4678999999999999999999999999999999999876    334 3667899999887653

>2wdq_D Succinate dehydrogenase hydrophobic membrane ANCH subunit; succinate dehydrogenase activity, cell inner membrane, trica acid cycle; HET: FAD HEM CBE; 2.40A {Escherichia coli} PDB: 1nen_D* 2acz_D* 1nek_D* 2wdr_D* 2wdv_D* 2wp9_D* 2wu2_D* 2ws3_D* 2wu5_D*

Probab=96.12  E-value=0.006  Score=41.79  Aligned_cols=35  Identities=17%  Similarity=0.095  Sum_probs=26.1

Q ss_pred             HHHHHHHHHHHHHHHH-HHH--HHhcCCCCHHHHhhhc
Q psy9435          71 LSITHRGTGVALTAYA-LGL--AGVGLTTDINSVVPTY  105 (106)
Q Consensus        71 ~SIlHRiTGv~L~~~~-~~l--~sl~~p~~f~~~~~~~  105 (106)
                      -=++||+||++|++.+ +.+  ....++++|+.+.+.+
T Consensus        15 ~Wi~~RiSgv~L~~l~~~~l~~~~~~~~~~y~~~~~~~   52 (115)
T 2wdq_D           15 DFILVRATAIVLTLYIIYMVGFFATSGELTYEVWIGFF   52 (115)
T ss_dssp             HHHHHHHHHHHHHHHHHHHHHHHTTCSSCCHHHHHHHH
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHHHcCccCHHHHHHHH
Confidence            3588999999999887 322  2345799999987653

---

Homologous Structure Domains

Structure Domains Detected by RPS-BLAST

Original result of RPS-BLAST against SCOP70(version1.75) database

ID	Length	Definition	E-value
Query	106
d1nekc_	129	f.21.2.2 (C:) Succinate dehydrogenase subunit SdhC	9e-12

>d1nekc_ f.21.2.2 (C:) Succinate dehydrogenase subunit SdhC {Escherichia coli [TaxId: 562]} Length = 129

class: Membrane and cell surface proteins and peptides
fold: Heme-binding four-helical bundle
superfamily: Fumarate reductase respiratory complex transmembrane subunits
family: Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)
domain: Succinate dehydrogenase subunit SdhC
species: Escherichia coli [TaxId: 562]

 Score = 54.9 bits (132), Expect = 9e-12
 Identities = 14/42 (33%), Positives = 21/42 (50%)

Query: 48 RNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYALGL 89
          RN +  RP++  L   +  IT++ SI HR +GV        L
Sbjct: 3  RNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGIL 44

Homologous Domains Detected by HHsearch

Original result of HHsearch against SCOP70(version1.75) database

ID	Length	Definition	Probability
Query	106
d1nekc_	129	Succinate dehydrogenase subunit SdhC {Escherichia	99.83
d1nekd_	113	Succinate dehydrogenase subunit SdhD {Escherichia	87.29

>d1nekc_ f.21.2.2 (C:) Succinate dehydrogenase subunit SdhC {Escherichia coli [TaxId: 562]}

class: Membrane and cell surface proteins and peptides
fold: Heme-binding four-helical bundle
superfamily: Fumarate reductase respiratory complex transmembrane subunits
family: Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)
domain: Succinate dehydrogenase subunit SdhC
species: Escherichia coli [TaxId: 562]

Probab=99.83  E-value=7.9e-22  Score=137.77  Aligned_cols=58  Identities=24%  Similarity=0.332  Sum_probs=49.7

Q ss_pred             hhhhccCCCCCCCccccccchhhHHHHHHHHHHHHHHHHH----HHHH-HhcCCCCHHHHhhh
Q psy9435          47 VRNERLGRPLSPHLTIYKLQITSVLSITHRGTGVALTAYA----LGLA-GVGLTTDINSVVPT  104 (106)
Q Consensus        47 ~~~~r~~RPvSPhL~iYr~~lt~i~SIlHRiTGv~L~~~~----~~l~-sl~~p~~f~~~~~~  104 (106)
                      .||+|++||+||||+|||||+||++||+||+||+++++++    +++. +..+|++|+.+.+.
T Consensus         2 ~~~~~~~RP~sPhL~iyk~~~t~~~SI~HRisGv~l~~~~~~~~~~l~~~~~~~~~~~~~~~~   64 (129)
T d1nekc_           2 IRNVKKQRPVNLDLQTIRFPITAIASILHRVSGVITFVAVGILLWLLGTSLSSPEGFEQASAI   64 (129)
T ss_dssp             CTTCCCCCCBCCCGGGSCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCHHHHHHHHHH
T ss_pred             chhcccCCCCCCCcceeCchHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHhccchHHHHHHHH
Confidence            3789999999999999999999999999999999999887    3443 55678888877664

>d1nekd_ f.21.2.2 (D:) Succinate dehydrogenase subunit SdhD {Escherichia coli [TaxId: 562]}

class: Membrane and cell surface proteins and peptides
fold: Heme-binding four-helical bundle
superfamily: Fumarate reductase respiratory complex transmembrane subunits
family: Succinate dehydrogenase/Fumarate reductase transmembrane subunits (SdhC/FrdC and SdhD/FrdD)
domain: Succinate dehydrogenase subunit SdhD
species: Escherichia coli [TaxId: 562]

Probab=87.29  E-value=0.4  Score=30.73  Aligned_cols=33  Identities=18%  Similarity=0.141  Sum_probs=24.0

Q ss_pred             HHHHHHHHHHHHHH-HHHHHhc--CCCCHHHHhhhc
Q psy9435          73 ITHRGTGVALTAYA-LGLAGVG--LTTDINSVVPTY  105 (106)
Q Consensus        73 IlHRiTGv~L~~~~-~~l~sl~--~p~~f~~~~~~~  105 (106)
                      +.||+||++|.... |.+..+.  .+.+|+...+.+
T Consensus        15 ~~qRvSAv~l~~l~~~~~~~~~~~~~~~y~~~~~~~   50 (113)
T d1nekd_          15 ILVRATAIVLTLYIIYMVGFFATSGELTYEVWIGFF   50 (113)
T ss_dssp             HHHHHHHHHHHHHHHHHHHHHTTTSSCCHHHHHHHH
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHcCCCCHHHHHHHH
Confidence            57999999999877 4444333  477899877654