Citrus Sinensis ID: 046034

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Local Sequence Feature Prediction

Residue Number Marker
--------10--------20--------30--------40--------50--------60----
Protein Sequence
MANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA
Secondary Structure (PSIPRED)
cccccccccccHHHHHHccccccHHHHHHHHHHHHHHHHHHHHHHHccccccccccHHHHHHcc
Secondary Structure Prediction (SSPRO)
cccEEEcccccHHHHHHHcccccEEcHHHHHHHHHHHHHHHHHHHcccccccHHcccHHHHccc
Coil and Loop (DISEMBL)
manlrnlsGLSKEIAkhlslppvklHCSMLAEDAIKAAVKDYEAkhtkssaaseaapaekaada
Flexible Loop (DISEMBL)
manlrnlsGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHtkssaaseaapaekaada
Low Complexity Region (SEG)
MANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTkssaaseaapaekaada
Disordered region (IsUnstruct)
*****************LSLPPVKLHCSMLAEDAIKAA**************************
Disordered Region (DISOPRED)
*****N**GLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKD***********************
Disordered Region (DISEMBL)
MANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVK************************
Disordered Region (DISPRO)
*ANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH******************
Transmembrane Helix (TMHMM)
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Transmembrane Helix (HMMTOP)
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Transmembrane Helix (MEMSAT)
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihhhhhhhhhhhhhhhhhhhooo
TM Helix, Signal Peptide (MEMSAT_SVM)
iiiiiiiiiiiiiiiiiiiihhhhhhhhhhhhhhhhoooooooooooooooooooooooooooo
TM Helix, Signal Peptide (Phobius)
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Signal Peptide (SignalP HMM Mode)
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Signal Peptide (SignalP NN Mode)
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Coiled Coils (COILS)
MANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA
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	64	2.2.26 [Sep-21-2011]
O49627	167	Iron-sulfur cluster assem	yes	no	0.765	0.293	0.714	5e-13
Q9MAB6	163	Iron-sulfur cluster assem	no	no	0.640	0.251	0.756	1e-11
Q6CRQ9	180	Iron sulfur cluster assem	yes	no	0.531	0.188	0.852	9e-11
O81433	171	Iron-sulfur cluster assem	no	no	0.640	0.239	0.707	9e-11
Q6BGU0	179	Iron sulfur cluster assem	yes	no	0.765	0.273	0.666	2e-10
Q03020	165	Iron sulfur cluster assem	yes	no	0.640	0.248	0.731	2e-10
Q75C07	154	Iron sulfur cluster assem	yes	no	0.531	0.220	0.823	3e-10
Q12056	156	Iron sulfur cluster assem	no	no	0.578	0.237	0.810	3e-10
B0YLW7	138	Iron sulfur cluster assem	N/A	no	0.562	0.260	0.777	6e-10
Q6FJY3	213	Iron sulfur cluster assem	no	no	0.578	0.173	0.783	9e-10

>sp|O49627|ISU1_ARATH Iron-sulfur cluster assembly protein 1 OS=Arabidopsis thaliana GN=ISU1 PE=2 SV=1

 Score = 73.2 bits (178), Expect = 5e-13,   Method: Compositional matrix adjust.
 Identities = 35/49 (71%), Positives = 40/49 (81%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKA 61
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDY+ K  K++ A+ A    +A
Sbjct: 119 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYKEKRVKTNGAAAAGETTQA 167

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial iron sulfur proteins. Involved in the assembly or repair of the [Fe-S] clusters present in iron-sulfur proteins.
Arabidopsis thaliana (taxid: 3702)

>sp|Q9MAB6|ISU2_ARATH Iron-sulfur cluster assembly protein 2 OS=Arabidopsis thaliana GN=ISU2 PE=2 SV=1

 Score = 68.6 bits (166), Expect = 1e-11,   Method: Compositional matrix adjust.
 Identities = 31/41 (75%), Positives = 37/41 (90%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAAS 53
           EIAKHL LPPVKLHCSMLAEDAIK+AV+DY+ K  K++AA+
Sbjct: 116 EIAKHLRLPPVKLHCSMLAEDAIKSAVRDYKEKQAKTNAAA 156

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial iron sulfur proteins. Involved in the assembly or repair of the [Fe-S] clusters present in iron-sulfur proteins.

Arabidopsis thaliana (taxid: 3702)

>sp|Q6CRQ9|ISU1_KLULA Iron sulfur cluster assembly protein 1, mitochondrial OS=Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37) GN=ISU1 PE=3 SV=1

 Score = 65.5 bits (158), Expect = 9e-11,   Method: Compositional matrix adjust.
 Identities = 29/34 (85%), Positives = 32/34 (94%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           EIA+ LSLPPVKLHCSMLAEDAIKAA+KDY+AK 
Sbjct: 141 EIARELSLPPVKLHCSMLAEDAIKAAIKDYQAKR 174

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial and cytoplasmic iron sulfur proteins. May also be involved in the repair of iron sulfur clusters.

Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37) (taxid: 284590)

>sp|O81433|ISU3_ARATH Iron-sulfur cluster assembly protein 3 OS=Arabidopsis thaliana GN=ISU3 PE=2 SV=1

 Score = 65.5 bits (158), Expect = 9e-11,   Method: Compositional matrix adjust.
 Identities = 29/41 (70%), Positives = 36/41 (87%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAAS 53
           +IAKHLSLPPVKLHCSMLAEDAIKAA+K+Y+ K  K++  +
Sbjct: 117 QIAKHLSLPPVKLHCSMLAEDAIKAAIKNYKEKQDKANGET 157

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial iron sulfur proteins. Involved in the assembly or repair of the [Fe-S] clusters present in iron-sulfur proteins.

Arabidopsis thaliana (taxid: 3702)

>sp|Q6BGU0|ISU1_DEBHA Iron sulfur cluster assembly protein 1, mitochondrial OS=Debaryomyces hansenii (strain ATCC 36239 / CBS 767 / JCM 1990 / NBRC 0083 / IGC 2968) GN=ISU1 PE=3 SV=1

 Score = 64.3 bits (155), Expect = 2e-10,   Method: Compositional matrix adjust.
 Identities = 34/51 (66%), Positives = 39/51 (76%), Gaps = 2/51 (3%)

Query: 14  IAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHT--KSSAASEAAPAEKAA 62
           IAK LSLPPVKLHCSMLAEDAIK+AVKDY +K +  + +   EAA AE  A
Sbjct: 128 IAKELSLPPVKLHCSMLAEDAIKSAVKDYRSKRSVKQPTLGPEAAQAETIA 178

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial and cytoplasmic iron sulfur proteins. May also be involved in the repair of iron sulfur clusters.

Debaryomyces hansenii (strain ATCC 36239 / CBS 767 / JCM 1990 / NBRC 0083 / IGC 2968) (taxid: 284592)

>sp|Q03020|ISU1_YEAST Iron sulfur cluster assembly protein 1, mitochondrial OS=Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GN=ISU1 PE=1 SV=1

 Score = 63.9 bits (154), Expect = 2e-10,   Method: Compositional matrix adjust.
 Identities = 30/41 (73%), Positives = 34/41 (82%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAAS 53
           EIAK LSLPPVKLHCSMLAEDAIKAA+KDY++K    +  S
Sbjct: 125 EIAKELSLPPVKLHCSMLAEDAIKAAIKDYKSKRNTPTMLS 165

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial and cytoplasmic iron sulfur proteins. May also be involved in the repair of iron sulfur clusters.

Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (taxid: 559292)

>sp|Q75C07|ISU1_ASHGO Iron sulfur cluster assembly protein 1, mitochondrial OS=Ashbya gossypii (strain ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056) GN=ISU1 PE=3 SV=1

 Score = 63.5 bits (153), Expect = 3e-10,   Method: Compositional matrix adjust.
 Identities = 28/34 (82%), Positives = 31/34 (91%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           EIA+ LSLPPVKLHCSMLAEDAIKAA+KDY +K 
Sbjct: 115 EIARELSLPPVKLHCSMLAEDAIKAAIKDYRSKR 148

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial and cytoplasmic iron sulfur proteins. May also be involved in the repair of iron sulfur clusters.

Ashbya gossypii (strain ATCC 10895 / CBS 109.51 / FGSC 9923 / NRRL Y-1056) (taxid: 284811)

>sp|Q12056|ISU2_YEAST Iron sulfur cluster assembly protein 2, mitochondrial OS=Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GN=ISU2 PE=1 SV=1

 Score = 63.5 bits (153), Expect = 3e-10,   Method: Compositional matrix adjust.
 Identities = 30/37 (81%), Positives = 32/37 (86%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKS 49
           EIAK LSLPPVKLHCSMLAEDAIKAA+KDY+ K   S
Sbjct: 117 EIAKELSLPPVKLHCSMLAEDAIKAAIKDYKTKRNPS 153

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial and cytoplasmic iron sulfur proteins. May also be involved in the repair of iron sulfur clusters.

Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (taxid: 559292)

>sp|B0YLW7|ISU1_TRAHO Iron sulfur cluster assembly protein 1 OS=Trachipleistophora hominis GN=ISU1 PE=3 SV=1

 Score = 62.8 bits (151), Expect = 6e-10,   Method: Compositional matrix adjust.
 Identities = 28/36 (77%), Positives = 33/36 (91%)

Query: 11  SKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           +K+IAK LSLPPVKLHCSMLAEDAIKAA+ DY+ K+
Sbjct: 101 NKDIAKKLSLPPVKLHCSMLAEDAIKAAISDYQKKN 136

Involved in iron homeostasis within the mitosome where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitosomal iron sulfur proteins.

Trachipleistophora hominis (taxid: 72359)

>sp|Q6FJY3|ISU1_CANGA Iron sulfur cluster assembly protein 1, mitochondrial OS=Candida glabrata (strain ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL Y-65) GN=ISU1 PE=3 SV=1

 Score = 62.0 bits (149), Expect = 9e-10,   Method: Composition-based stats.
 Identities = 29/37 (78%), Positives = 34/37 (91%)

Query: 14  IAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSS 50
           IAK LSLPPVKLHCSMLAEDAIKAA+KDY++K T ++
Sbjct: 174 IAKELSLPPVKLHCSMLAEDAIKAAIKDYKSKRTSTT 210

Involved in iron homeostasis within the mitochondrion where it is involved in the assembly of iron-sulfur proteins. Essential for de novo biosynthesis of mitochondrial and cytoplasmic iron sulfur proteins. May also be involved in the repair of iron sulfur clusters.

Candida glabrata (strain ATCC 2001 / CBS 138 / JCM 3761 / NBRC 0622 / NRRL Y-65) (taxid: 284593)

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	64
226500980	180	uncharacterized protein LOC100273266 [Ze	0.812	0.288	0.807	2e-14
194698822	180	unknown [Zea mays] gi|414881115|tpg|DAA5	0.812	0.288	0.788	2e-14
356513449	165	PREDICTED: iron-sulfur cluster assembly	0.781	0.303	0.82	3e-14
351726321	165	uncharacterized protein LOC100526856 [Gl	0.812	0.315	0.807	3e-14
224135819	164	predicted protein [Populus trichocarpa]	0.812	0.317	0.769	3e-14
226501086	180	nifU-like N-terminal domain-containing p	0.812	0.288	0.769	4e-14
224121706	163	predicted protein [Populus trichocarpa]	0.812	0.319	0.788	6e-14
305855380	166	iron-sulfur cluster scaffold protein [He	0.812	0.313	0.75	8e-14
209484089	173	iron-sulfer cluster scaffold protein ISU	0.906	0.335	0.754	9e-14
356516670	172	PREDICTED: iron-sulfur cluster assembly	0.812	0.302	0.769	1e-13

>gi|226500980|ref|NP_001141179.1| uncharacterized protein LOC100273266 [Zea mays] gi|194702780|gb|ACF85474.1| unknown [Zea mays] gi|194703112|gb|ACF85640.1| unknown [Zea mays] gi|195617538|gb|ACG30599.1| nifU-like N-terminal domain-containing protein [Zea mays] gi|195639094|gb|ACG39015.1| nifU-like N-terminal domain-containing protein [Zea mays] gi|413950825|gb|AFW83474.1| nifU-like domain-containing protein [Zea mays]

 Score = 83.2 bits (204), Expect = 2e-14,   Method: Compositional matrix adjust.
 Identities = 42/52 (80%), Positives = 45/52 (86%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK  K    SE +P+EKAA+A
Sbjct: 129 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKKAKMGQKSEDSPSEKAAEA 180

Source: Zea mays

Species: Zea mays

Genus: Zea

Family: Poaceae

Order: Poales

Class: Liliopsida

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|194698822|gb|ACF83495.1| unknown [Zea mays] gi|414881115|tpg|DAA58246.1| TPA: nifU-like domain-containing protein [Zea mays]

 Score = 82.8 bits (203), Expect = 2e-14,   Method: Compositional matrix adjust.
 Identities = 41/52 (78%), Positives = 45/52 (86%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK +K     E +P+EKAA+A
Sbjct: 129 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKKSKMGQKGEDSPSEKAAEA 180

Source: Zea mays

Species: Zea mays

Genus: Zea

Family: Poaceae

Order: Poales

Class: Liliopsida

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|356513449|ref|XP_003525426.1| PREDICTED: iron-sulfur cluster assembly enzyme ISCU, mitochondrial-like [Glycine max]

 Score = 82.8 bits (203), Expect = 3e-14,   Method: Compositional matrix adjust.
 Identities = 41/50 (82%), Positives = 44/50 (88%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAA 62
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK  K++A+ EAA  EK A
Sbjct: 114 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKRAKATASGEAATGEKPA 163

Source: Glycine max

Species: Glycine max

Genus: Glycine

Family: Fabaceae

Order: Fabales

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|351726321|ref|NP_001235075.1| uncharacterized protein LOC100526856 [Glycine max] gi|255630998|gb|ACU15863.1| unknown [Glycine max]

 Score = 82.4 bits (202), Expect = 3e-14,   Method: Compositional matrix adjust.
 Identities = 42/52 (80%), Positives = 45/52 (86%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK  K++A+ EAA  EK A A
Sbjct: 114 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKRAKATASGEAATEEKPATA 165

Source: Glycine max

Species: Glycine max

Genus: Glycine

Family: Fabaceae

Order: Fabales

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|224135819|ref|XP_002322168.1| predicted protein [Populus trichocarpa] gi|118485714|gb|ABK94707.1| unknown [Populus trichocarpa] gi|118486936|gb|ABK95301.1| unknown [Populus trichocarpa] gi|222869164|gb|EEF06295.1| predicted protein [Populus trichocarpa]

 Score = 82.4 bits (202), Expect = 3e-14,   Method: Compositional matrix adjust.
 Identities = 40/52 (76%), Positives = 42/52 (80%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDY+ K  K S  SE  P E+AA A
Sbjct: 113 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYQTKRAKLSGVSETEPVEQAAQA 164

Source: Populus trichocarpa

Species: Populus trichocarpa

Genus: Populus

Family: Salicaceae

Order: Malpighiales

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|226501086|ref|NP_001146933.1| nifU-like N-terminal domain-containing protein [Zea mays] gi|195605342|gb|ACG24501.1| nifU-like N-terminal domain-containing protein [Zea mays]

 Score = 82.0 bits (201), Expect = 4e-14,   Method: Compositional matrix adjust.
 Identities = 40/52 (76%), Positives = 45/52 (86%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK +K     E +P++KAA+A
Sbjct: 129 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKKSKMGQKGEDSPSQKAAEA 180

Source: Zea mays

Species: Zea mays

Genus: Zea

Family: Poaceae

Order: Poales

Class: Liliopsida

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|224121706|ref|XP_002318652.1| predicted protein [Populus trichocarpa] gi|118485453|gb|ABK94583.1| unknown [Populus trichocarpa] gi|222859325|gb|EEE96872.1| predicted protein [Populus trichocarpa]

 Score = 81.6 bits (200), Expect = 6e-14,   Method: Compositional matrix adjust.
 Identities = 41/52 (78%), Positives = 44/52 (84%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDY+ K  KS+  SEA PA +AA A
Sbjct: 112 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYQTKRAKSNVDSEAEPAVQAAKA 163

Source: Populus trichocarpa

Species: Populus trichocarpa

Genus: Populus

Family: Salicaceae

Order: Malpighiales

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|305855380|gb|ADM67612.1| iron-sulfur cluster scaffold protein [Hevea brasiliensis]

 Score = 81.3 bits (199), Expect = 8e-14,   Method: Compositional matrix adjust.
 Identities = 39/52 (75%), Positives = 43/52 (82%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDY+ K  K +   +AAP E+AA A
Sbjct: 115 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYQTKRAKVNGTPDAAPVEQAAQA 166

Source: Hevea brasiliensis

Species: Hevea brasiliensis

Genus: Hevea

Family: Euphorbiaceae

Order: Malpighiales

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|209484089|gb|ACI47519.1| iron-sulfer cluster scaffold protein ISU1 [Eucalyptus grandis]

 Score = 80.9 bits (198), Expect = 9e-14,   Method: Compositional matrix adjust.
 Identities = 46/61 (75%), Positives = 50/61 (81%), Gaps = 3/61 (4%)

Query: 7   LSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTK---SSAASEAAPAEKAAD 63
           LS  + EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK  K   SS +++ AP EKAAD
Sbjct: 113 LSIKNTEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKRAKLDGSSDSAKDAPLEKAAD 172

Query: 64  A 64
           A
Sbjct: 173 A 173

Source: Eucalyptus grandis

Species: Eucalyptus grandis

Genus: Eucalyptus

Family: Myrtaceae

Order: Myrtales

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|356516670|ref|XP_003527016.1| PREDICTED: iron-sulfur cluster assembly enzyme ISCU, mitochondrial-like [Glycine max]

 Score = 80.5 bits (197), Expect = 1e-13,   Method: Compositional matrix adjust.
 Identities = 40/52 (76%), Positives = 42/52 (80%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAADA 64
           EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK   +SA  +A   EKA  A
Sbjct: 121 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKRASASAGGQATTGEKAVTA 172

Source: Glycine max

Species: Glycine max

Genus: Glycine

Family: Fabaceae

Order: Fabales

Phylum: Streptophyta

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	64
SGD|S000005752	156	ISU2 "Protein required for syn	0.515	0.211	0.878	2.2e-12
CGD|CAL0003195	187	ISU1 [Candida albicans (taxid:	0.5	0.171	0.906	2.2e-12
UNIPROTKB|Q5AGZ0	187	ISU1 "Likely mitochondrial iro	0.5	0.171	0.906	2.2e-12
TAIR|locus:2132090	167	ISU1 [Arabidopsis thaliana (ta	0.515	0.197	0.939	1.3e-11
SGD|S000006056	165	ISU1 "Conserved protein of the	0.515	0.2	0.878	7.4e-11
TAIR|locus:2136612	171	ISU3 "ISCU-like 3" [Arabidopsi	0.546	0.204	0.8	9.4e-11
TAIR|locus:2102122	163	ISU2 "ISCU-like 2" [Arabidopsi	0.515	0.202	0.848	2e-10
DICTYBASE|DDB_G0283003	194	DDB_G0283003 "Iron-sulfur clus	0.531	0.175	0.764	5.2e-10
WB|WBGene00012885	153	Y45F10D.4 [Caenorhabditis eleg	0.546	0.228	0.771	8.4e-10
ZFIN|ZDB-GENE-050417-332	164	zgc:110331 "zgc:110331" [Danio	0.515	0.201	0.848	1.1e-09

SGD|S000005752 ISU2 "Protein required for synthesis of iron-sulfur proteins" [Saccharomyces cerevisiae (taxid:4932)]

 Score = 150 (57.9 bits), Expect = 2.2e-12, Sum P(2) = 2.2e-12
 Identities = 29/33 (87%), Positives = 31/33 (93%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             EIAK LSLPPVKLHCSMLAEDAIKAA+KDY+ K
Sbjct:   117 EIAKELSLPPVKLHCSMLAEDAIKAAIKDYKTK 149

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0005759 "mitochondrial matrix" evidence=IEA;IDA

GO:0005506 "iron ion binding" evidence=IEA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA;ISS;IMP

GO:0002098 "tRNA wobble uridine modification" evidence=IGI

GO:0051537 "2 iron, 2 sulfur cluster binding" evidence=IEA

GO:0003674 "molecular_function" evidence=ND

GO:0046872 "metal ion binding" evidence=IEA

GO:0006879 "cellular iron ion homeostasis" evidence=ISS;IMP

GO:0005739 "mitochondrion" evidence=IEA

CGD|CAL0003195 ISU1 [Candida albicans (taxid:5476)]

 Score = 148 (57.2 bits), Expect = 2.2e-12, Sum P(2) = 2.2e-12
 Identities = 29/32 (90%), Positives = 31/32 (96%)

Query:    14 IAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             IAK LSLPPVKLHCSMLAEDAIKAAVKDY++K
Sbjct:   127 IAKELSLPPVKLHCSMLAEDAIKAAVKDYQSK 158

GO:0016226 "iron-sulfur cluster assembly" evidence=NAS

GO:0005759 "mitochondrial matrix" evidence=IEA

GO:0002098 "tRNA wobble uridine modification" evidence=IEA

GO:0006879 "cellular iron ion homeostasis" evidence=IEA

GO:0051537 "2 iron, 2 sulfur cluster binding" evidence=IEA

GO:0008198 "ferrous iron binding" evidence=IEA

UNIPROTKB|Q5AGZ0 ISU1 "Likely mitochondrial iron-sulfur cluster assembly scaffold protein" [Candida albicans SC5314 (taxid:237561)]

 Score = 148 (57.2 bits), Expect = 2.2e-12, Sum P(2) = 2.2e-12
 Identities = 29/32 (90%), Positives = 31/32 (96%)

Query:    14 IAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             IAK LSLPPVKLHCSMLAEDAIKAAVKDY++K
Sbjct:   127 IAKELSLPPVKLHCSMLAEDAIKAAVKDYQSK 158

GO:0016226 "iron-sulfur cluster assembly" evidence=NAS

TAIR|locus:2132090 ISU1 [Arabidopsis thaliana (taxid:3702)]

 Score = 158 (60.7 bits), Expect = 1.3e-11, P = 1.3e-11
 Identities = 31/33 (93%), Positives = 32/33 (96%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             EIAKHLSLPPVKLHCSMLAEDAIKAAVKDY+ K
Sbjct:   119 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYKEK 151

GO:0005506 "iron ion binding" evidence=IEA

GO:0005739 "mitochondrion" evidence=ISM;IDA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA;IGI;ISS

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0005198 "structural molecule activity" evidence=ISS

GO:0009507 "chloroplast" evidence=IDA

SGD|S000006056 ISU1 "Conserved protein of the mitochondrial matrix" [Saccharomyces cerevisiae (taxid:4932)]

 Score = 151 (58.2 bits), Expect = 7.4e-11, P = 7.4e-11
 Identities = 29/33 (87%), Positives = 32/33 (96%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             EIAK LSLPPVKLHCSMLAEDAIKAA+KDY++K
Sbjct:   125 EIAKELSLPPVKLHCSMLAEDAIKAAIKDYKSK 157

GO:0006879 "cellular iron ion homeostasis" evidence=ISS;IMP

GO:0051537 "2 iron, 2 sulfur cluster binding" evidence=IEA

GO:0005739 "mitochondrion" evidence=IEA;IDA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA;IGI;ISS;IMP

GO:0008198 "ferrous iron binding" evidence=IDA

GO:0002098 "tRNA wobble uridine modification" evidence=IGI

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0005506 "iron ion binding" evidence=IEA

GO:0046872 "metal ion binding" evidence=IEA

GO:0005759 "mitochondrial matrix" evidence=IEA;IDA

TAIR|locus:2136612 ISU3 "ISCU-like 3" [Arabidopsis thaliana (taxid:3702)]

 Score = 150 (57.9 bits), Expect = 9.4e-11, P = 9.4e-11
 Identities = 28/35 (80%), Positives = 33/35 (94%)

Query:    11 SKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             + +IAKHLSLPPVKLHCSMLAEDAIKAA+K+Y+ K
Sbjct:   115 NSQIAKHLSLPPVKLHCSMLAEDAIKAAIKNYKEK 149

GO:0005506 "iron ion binding" evidence=IEA

GO:0005739 "mitochondrion" evidence=ISM;IDA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA;IGI;ISS

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0005198 "structural molecule activity" evidence=ISS

GO:0009507 "chloroplast" evidence=IDA

TAIR|locus:2102122 ISU2 "ISCU-like 2" [Arabidopsis thaliana (taxid:3702)]

 Score = 147 (56.8 bits), Expect = 2.0e-10, P = 2.0e-10
 Identities = 28/33 (84%), Positives = 31/33 (93%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             EIAKHL LPPVKLHCSMLAEDAIK+AV+DY+ K
Sbjct:   116 EIAKHLRLPPVKLHCSMLAEDAIKSAVRDYKEK 148

GO:0005506 "iron ion binding" evidence=IEA

GO:0005739 "mitochondrion" evidence=ISM;IDA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA;IGI;ISS

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0005198 "structural molecule activity" evidence=ISS

GO:0009507 "chloroplast" evidence=IDA

GO:0009827 "plant-type cell wall modification" evidence=RCA

GO:0009860 "pollen tube growth" evidence=RCA

DICTYBASE|DDB_G0283003 DDB_G0283003 "Iron-sulfur cluster assembly enzyme ISCU, mitochondrial" [Dictyostelium discoideum (taxid:44689)]

 Score = 143 (55.4 bits), Expect = 5.2e-10, P = 5.2e-10
 Identities = 26/34 (76%), Positives = 30/34 (88%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
             +IAKHLSLPPVK+HCSMLAE AIK A+ DY+ KH
Sbjct:   144 DIAKHLSLPPVKMHCSMLAEQAIKRAIYDYKVKH 177

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA

GO:0005506 "iron ion binding" evidence=IEA

GO:0044351 "macropinocytosis" evidence=RCA

WB|WBGene00012885 Y45F10D.4 [Caenorhabditis elegans (taxid:6239)]

 Score = 141 (54.7 bits), Expect = 8.4e-10, P = 8.4e-10
 Identities = 27/35 (77%), Positives = 31/35 (88%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHT 47
             EIAK L LPPVKLHCSMLA+DAI+AA+KDY+ K T
Sbjct:   116 EIAKELCLPPVKLHCSMLAQDAIQAALKDYQKKQT 150

GO:0005506 "iron ion binding" evidence=IEA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0009792 "embryo development ending in birth or egg hatching" evidence=IMP

GO:0040007 "growth" evidence=IMP

GO:0002119 "nematode larval development" evidence=IMP

ZFIN|ZDB-GENE-050417-332 zgc:110331 "zgc:110331" [Danio rerio (taxid:7955)]

 Score = 140 (54.3 bits), Expect = 1.1e-09, P = 1.1e-09
 Identities = 28/33 (84%), Positives = 29/33 (87%)

Query:    13 EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
             EIAK LSLPPVKLHCSMLAEDAIKAA+ DY  K
Sbjct:   118 EIAKELSLPPVKLHCSMLAEDAIKAALADYRLK 150

GO:0051536 "iron-sulfur cluster binding" evidence=IEA

GO:0005506 "iron ion binding" evidence=IEA

GO:0016226 "iron-sulfur cluster assembly" evidence=IEA

GO:0005575 "cellular_component" evidence=ND

---

Prediction of Enzyme Commission (EC) Number

EC Number Prediction by Annotation Transfer from SWISS-PROT Entries

Original result of BLAST against SWISS-PROT

ID	Name	Annotated EC number	Identity	Query coverage	Hit coverage	RBH(Q2H)	RBH(H2Q)
Q6CFQ0	ISU1_YARLI	No assigned EC number	0.7878	0.5156	0.1823	yes	no
Q9UTC6	ISU1_SCHPO	No assigned EC number	0.7647	0.5312	0.1770	yes	no
Q9ZD61	NIFU_RICPR	No assigned EC number	0.7941	0.5312	0.2595	yes	no
Q9D7P6	ISCU_MOUSE	No assigned EC number	0.7647	0.5312	0.2023	yes	no
O49627	ISU1_ARATH	No assigned EC number	0.7142	0.7656	0.2934	yes	no
Q57074	NIFU_HAEIN	No assigned EC number	0.7058	0.5312	0.2698	yes	no
Q03020	ISU1_YEAST	No assigned EC number	0.7317	0.6406	0.2484	yes	no
Q6CRQ9	ISU1_KLULA	No assigned EC number	0.8529	0.5312	0.1888	yes	no
Q75C07	ISU1_ASHGO	No assigned EC number	0.8235	0.5312	0.2207	yes	no

EC Number Prediction by Ezypred Server

Original result from Ezypred Server

Fail to connect to Ezypred Server

EC Number Prediction by EFICAz Software

No EC number assignment, probably not an enzyme!

---

Prediction of Functionally Associated Proteins

Functionally Associated Proteins Detected by STRING

Original result from the STRING server

Your Input:
	eugene3.00150565	SubName- Full=Putative uncharacterized protein; (165 aa)
		(Populus trichocarpa)
Predicted Functional Partners:
	estExt_Genewise1_v1.C_LG_VII0255	cysteine desulfurase/transaminase (EC-2.8.1.7) (452 aa)	•		•	•	•		•		0.987
	gw1.IX.3183.1	selenocysteine lyase/cysteine desulfurase (EC-2.8.1.7) (468 aa)	•				•		•		0.911
	fgenesh4_pg.C_LG_IV000050	hypothetical protein (554 aa)	•						•		0.869
	gw1.598.1.1	hypothetical protein (210 aa)	•		•	•	•		•		0.851
	eugene3.00080101	white-brown-complex ABC transporter family (328 aa)	•						•		0.770
	estExt_fgenesh4_pm.C_2080014	adrenodoxin-like ferredoxin protein (199 aa)	•		•				•		0.509
	grail3.0047024601	adrenodoxin-like ferredoxin protein (199 aa)	•		•				•		0.506
	gw1.29.403.1	hypothetical protein (456 aa)	•						•		0.479
	gw1.I.1555.1	hypothetical protein (409 aa)	•						•		0.440
	eugene3.199330001	Predicted protein (107 aa)	•			•			•		0.437

---

Conserved Domains and Related Protein Families

Conserved Domains Detected by RPS-BLAST

Original result of RPS-BLAST against CDD database part I

ID	Length	Definition	E-value
Query	64
PRK11325	127	PRK11325, PRK11325, scaffold protein; Provisional	1e-15
TIGR01999	124	TIGR01999, iscU, FeS cluster assembly scaffold Isc	2e-15
pfam01592	126	pfam01592, NifU_N, NifU-like N terminal domain	3e-10
TIGR03419	121	TIGR03419, NifU_clost, FeS cluster assembly scaffo	2e-08
COG0822	150	COG0822, IscU, NifU homolog involved in Fe-S clust	9e-07
TIGR02000	290	TIGR02000, NifU_proper, Fe-S cluster assembly prot	9e-04
cd06664	123	cd06664, IscU_like, Iron-sulfur cluster scaffold-l	9e-04

>gnl|CDD|183087 PRK11325, PRK11325, scaffold protein; Provisional

 Score = 65.4 bits (160), Expect = 1e-15
 Identities = 24/36 (66%), Positives = 32/36 (88%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTK 48
           +IA+ L+LPPVK+HCS+LAEDAIKAA+ DY++K  K
Sbjct: 92  DIAEELALPPVKIHCSILAEDAIKAAIADYKSKQAK 127

Length = 127

>gnl|CDD|188192 TIGR01999, iscU, FeS cluster assembly scaffold IscU

 Score = 64.8 bits (158), Expect = 2e-15
 Identities = 28/34 (82%), Positives = 32/34 (94%)

Query: 12  KEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAK 45
            EIAK LSLPPVKLHCS+LAEDAIKAA+KDY++K
Sbjct: 89  TEIAKELSLPPVKLHCSLLAEDAIKAAIKDYKSK 122

This model represents IscU, a homolog of the N-terminal region of NifU, an Fe-S cluster assembly protein found mostly in nitrogen-fixing bacteria. IscU is considered part of the IscSUA-hscAB-fdx system of Fe-S assembly, whereas NifU is found in nitrogenase-containing (nitrogen-fixing) species. A NifU-type protein is also found in Helicobacter and Campylobacter. IscU and NifU are considered scaffold proteins on which Fe-S clusters are assembled before transfer to apoproteins. This model excludes true NifU proteins as in Klebsiella pneumoniae and Anabaena sp. as well as archaeal homologs. It includes largely proteobacterial and eukaryotic forms [Biosynthesis of cofactors, prosthetic groups, and carriers, Other]. Length = 124

>gnl|CDD|216592 pfam01592, NifU_N, NifU-like N terminal domain

 Score = 51.2 bits (123), Expect = 3e-10
 Identities = 20/35 (57%), Positives = 28/35 (80%), Gaps = 1/35 (2%)

Query: 12  KEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAK 45
            +IA+ L  LPPVK+HCS+L +DA+KAA+ DY+ K
Sbjct: 88  TDIAEELGGLPPVKMHCSVLGDDALKAAIADYKGK 122

This domain is found in NifU in combination with pfam01106. This domain is found on isolated in several bacterial species. The nif genes are responsible for nitrogen fixation. However this domain is found in bacteria that do not fix nitrogen, so it may have a broader significance in the cell than nitrogen fixation. These proteins appear to be scaffold proteins for iron-sulfur clusters. Length = 126

>gnl|CDD|132460 TIGR03419, NifU_clost, FeS cluster assembly scaffold protein NifU, Clostridium type

 Score = 46.3 bits (110), Expect = 2e-08
 Identities = 17/26 (65%), Positives = 21/26 (80%)

Query: 20  LPPVKLHCSMLAEDAIKAAVKDYEAK 45
           LPPVK+HCS+LAE+AI  A+ DY  K
Sbjct: 94  LPPVKMHCSVLAEEAIHKAINDYREK 119

NifU and NifS form a pair of iron-sulfur (FeS) cluster biosynthesis proteins much simpler than the ISC and SUF systems. Members of this protein family are a distinct group of NifU-like proteins, found always to a NifS-like protein and restricted to species that lack a SUF system. Typically, NIF systems service a smaller number of FeS-containing proteins than do ISC or SUF. Members of this particular branch typically are found, almost half the time, near the mnmA gene, involved in the carboxymethylaminomethyl modification of U34 in some tRNAs (see GenProp0704). While other NifU proteins are associated with nitrogen fixation, this family is not [Biosynthesis of cofactors, prosthetic groups, and carriers, Other]. Length = 121

>gnl|CDD|223892 COG0822, IscU, NifU homolog involved in Fe-S cluster formation [Energy production and conversion]

 Score = 42.4 bits (100), Expect = 9e-07
 Identities = 16/29 (55%), Positives = 24/29 (82%)

Query: 18  LSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           ++LPP ++ CS+LA DA+KAA+KDY+ K 
Sbjct: 117 VALPPARIKCSLLAWDALKAAIKDYKGKA 145

Length = 150

>gnl|CDD|233679 TIGR02000, NifU_proper, Fe-S cluster assembly protein NifU

 Score = 34.8 bits (80), Expect = 9e-04
 Identities = 14/33 (42%), Positives = 27/33 (81%), Gaps = 1/33 (3%)

Query: 11  SKEIAKHLS-LPPVKLHCSMLAEDAIKAAVKDY 42
           +++IA +L  LPP K+HCS++ ++A++AA+ +Y
Sbjct: 89  NQDIADYLGGLPPEKMHCSVMGQEALEAAIANY 121

Three different but partially homologous Fe-S cluster assembly systems have been described: Isc, Suf, and Nif. The latter is associated with donation of an Fe-S cluster to nitrogenase in a number of nitrogen-fixing species. NifU, described here, consists of an N-terminal domain (pfam01592) and a C-terminal domain (pfam01106). Homologs with an equivalent domain archictecture from Helicobacter and Campylobacter, however, are excluded from this model by a high trusted cutoff. The model, therefore, is specific for NifU involved in nitrogenase maturation. The related model TIGR01999 homologous to the N-terminus of this model describes IscU from the Isc system as in E. coli, Saccharomyces cerevisiae, and Homo sapiens [Biosynthesis of cofactors, prosthetic groups, and carriers, Other, Central intermediary metabolism, Nitrogen fixation]. Length = 290

>gnl|CDD|143480 cd06664, IscU_like, Iron-sulfur cluster scaffold-like proteins

 Score = 34.1 bits (79), Expect = 9e-04
 Identities = 11/23 (47%), Positives = 17/23 (73%)

Query: 16  KHLSLPPVKLHCSMLAEDAIKAA 38
             + LPP ++HC++LA  A+KAA
Sbjct: 101 AGVGLPPARIHCALLAWKALKAA 123

IscU_like and NifU_like proteins. IscU and NifU function as a scaffold for the assembly of [2Fe-2S] clusters before they are transferred to apo target proteins. They are highly conserved and play vital roles in the ISC and NIF systems of Fe-S protein maturation. NIF genes participate in nitrogen fixation in several isolated bacterial species. The NifU domain, however, is also found in bacteria that do not fix nitrogen, so it may have wider significance in the cell. Human IscU interacts with frataxin, the Friedreich ataxia gene product, and incorrectly spliced IscU has been shown to disrupt iron homeostasis in skeletal muscle and cause myopathy. Length = 123

Conserved Domains Detected by HHsearch

Original result of HHsearch against CDD database

ID	Length	Definition	Probability
Query	64
KOG3361	157	consensus Iron binding protein involved in Fe-S cl	99.67
PRK11325	127	scaffold protein; Provisional	99.32
TIGR01999	124	iscU FeS cluster assembly scaffold IscU. This mode	99.3
TIGR03419	121	NifU_clost FeS cluster assembly scaffold protein N	99.23
PF01592	126	NifU_N: NifU-like N terminal domain; InterPro: IPR	99.0
TIGR02000	290	NifU_proper Fe-S cluster assembly protein NifU. Th	98.98
COG0822	150	IscU NifU homolog involved in Fe-S cluster formati	98.68
cd06664	123	IscU_like Iron-sulfur cluster scaffold-like protei	97.77
TIGR01994	137	SUF_scaf_2 SUF system FeS assembly protein, NifU f	92.79

>KOG3361 consensus Iron binding protein involved in Fe-S cluster formation [Energy production and conversion]

Probab=99.67  E-value=7.9e-17  Score=109.06  Aligned_cols=50  Identities=62%  Similarity=0.819  Sum_probs=46.9

Q ss_pred             ChhHHhhcCCHHHHHHhcCCCCchhHHHHHHHHHHHHHHHHHHHhhCCCc
Q 046034            1 MANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSS   50 (64)
Q Consensus         1 ~~~~EA~~I~~~dI~e~LgLP~~K~HCA~LA~~ALk~AI~dY~~k~~~~~   50 (64)
                      |.++|+++|++.+|+.+|.|||.|+|||+||++|++.||+||+.||...+
T Consensus       106 kt~dea~kIkNteIAKeL~LPPVKLHCSMLAEDAIKaAikdyk~Kq~~~~  155 (157)
T KOG3361|consen  106 KTLDEALKIKNTEIAKELSLPPVKLHCSMLAEDAIKAAIKDYKEKQNKPN  155 (157)
T ss_pred             ccHHHHHhcccHHHHHhccCCchhhhhHHHHHHHHHHHHHHHHHhccCCC
Confidence            56899999999999999999999999999999999999999999987554

>PRK11325 scaffold protein; Provisional

Probab=99.32  E-value=3.1e-12  Score=82.78  Aligned_cols=46  Identities=52%  Similarity=0.807  Sum_probs=43.4

Q ss_pred             hhHHhhcCCHHHHHHhcCCCCchhHHHHHHHHHHHHHHHHHHHhhC
Q 046034            2 ANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHT   47 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~LgLP~~K~HCA~LA~~ALk~AI~dY~~k~~   47 (64)
                      .++|++.|+.++|.++|||||.|+||+.|+.+||++||.+|+.++.
T Consensus        81 tl~ea~~i~~~~i~~~lg~p~~r~~CA~la~~al~~a~~~y~~~~~  126 (127)
T PRK11325         81 TLDEALAIKNTDIAEELALPPVKIHCSILAEDAIKAAIADYKSKQA  126 (127)
T ss_pred             CHHHHHhcCHHHHHHHcCCCcccchHHHHHHHHHHHHHHHHHhhcC
Confidence            4789999999999999999999999999999999999999988764

>TIGR01999 iscU FeS cluster assembly scaffold IscU

Probab=99.30  E-value=3.9e-12  Score=81.80  Aligned_cols=45  Identities=64%  Similarity=0.893  Sum_probs=42.6

Q ss_pred             hhHHhhcCCHHHHHHhcCCCCchhHHHHHHHHHHHHHHHHHHHhh
Q 046034            2 ANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH   46 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~LgLP~~K~HCA~LA~~ALk~AI~dY~~k~   46 (64)
                      .++|+..|++++|.++|||||.|+||+.|+.+||+.||.+|+.++
T Consensus        79 tl~ea~~i~~~~i~~~lg~p~~r~~CA~l~~~al~~a~~~y~~~~  123 (124)
T TIGR01999        79 SLEEALKIKNTEIAKELSLPPVKLHCSLLAEDAIKAAIKDYKSKQ  123 (124)
T ss_pred             CHHHHHhccHHHHHHHcCCCcccchHHHHHHHHHHHHHHHHHHhc
Confidence            478999999999999999999999999999999999999998765

This model represents IscU, a homolog of the N-terminal region of NifU, an Fe-S cluster assembly protein found mostly in nitrogen-fixing bacteria. IscU is considered part of the IscSUA-hscAB-fdx system of Fe-S assembly, whereas NifU is found in nitrogenase-containing (nitrogen-fixing) species. A NifU-type protein is also found in Helicobacter and Campylobacter. IscU and NifU are considered scaffold proteins on which Fe-S clusters are assembled before transfer to apoproteins. This model excludes true NifU proteins as in Klebsiella pneumoniae and Anabaena sp. as well as archaeal homologs. It includes largely proteobacterial and eukaryotic forms.

>TIGR03419 NifU_clost FeS cluster assembly scaffold protein NifU, Clostridium type

Probab=99.23  E-value=1.4e-11  Score=79.10  Aligned_cols=46  Identities=43%  Similarity=0.687  Sum_probs=42.9

Q ss_pred             hhHHhhcCCHHHHHHhc-CCCCchhHHHHHHHHHHHHHHHHHHHhhC
Q 046034            2 ANLRNLSGLSKEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAKHT   47 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~L-gLP~~K~HCA~LA~~ALk~AI~dY~~k~~   47 (64)
                      .++|+..|+.++|.++| ||||.|+||+.|+.+||+.|+.+|+.+++
T Consensus        75 ~l~ea~~i~~~~i~~~l~~l~~~r~~CA~la~~al~~a~~~y~~~~~  121 (121)
T TIGR03419        75 TLEEAWELTNKAVAEALDGLPPVKMHCSVLAEEAIHKAINDYREKNG  121 (121)
T ss_pred             CHHHHHHhhhHHHHHHHcCCCcccCHHHHHHHHHHHHHHHHHHhccC
Confidence            47899999999999999 79999999999999999999999998764

NifU and NifS form a pair of iron-sulfur (FeS) cluster biosynthesis proteins much simpler than the ISC and SUF systems. Members of this protein family are a distinct group of NifU-like proteins, found always to a NifS-like protein and restricted to species that lack a SUF system. Typically, NIF systems service a smaller number of FeS-containing proteins than do ISC or SUF. Members of this particular branch typically are found, almost half the time, near the mnmA gene, involved in the carboxymethylaminomethyl modification of U34 in some tRNAs (see GenProp0704). While other NifU proteins are associated with nitrogen fixation, this family is not.

>PF01592 NifU_N: NifU-like N terminal domain; InterPro: IPR002871 Iron-sulphur (FeS) clusters are important cofactors for numerous proteins involved in electron transfer, in redox and non-redox catalysis, in gene regulation, and as sensors of oxygen and iron

Probab=99.00  E-value=4.7e-10  Score=71.94  Aligned_cols=45  Identities=44%  Similarity=0.705  Sum_probs=41.6

Q ss_pred             hhHHhhcCCHHHHHHhc-CCCCchhHHHHHHHHHHHHHHHHHHHhh
Q 046034            2 ANLRNLSGLSKEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAKH   46 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~L-gLP~~K~HCA~LA~~ALk~AI~dY~~k~   46 (64)
                      .++||++|+.++|.++| ++|+++.||+.|+.+||+.||.+|+.++
T Consensus        79 ~l~ea~~i~~~~i~~~l~~~~~~~~~~~~l~~~al~~av~~y~~r~  124 (126)
T PF01592_consen   79 TLEEALKITAEDIEEALGGLPPERQHCAELADDALKAAVADYPARH  124 (126)
T ss_dssp             BHHHHHCHHHHHHHHHHTC-CGTCGHHHHHHHHHHHHHHHHHHHHC
T ss_pred             CHHHHHHHHHHHHHHHHhccccCcccHHHHHHHHHHHHHHHHHhhh
Confidence            47899999999999999 7999999999999999999999999875

These functions depend on the various FeS cluster prosthetic groups, the most common being [2Fe-2S] and [4Fe-4S] []. FeS cluster assembly is a complex process involving the mobilisation of Fe and S atoms from storage sources, their assembly into [Fe-S] form, their transport to specific cellular locations, and their transfer to recipient apoproteins. So far, three FeS assembly machineries have been identified, which are capable of synthesising all types of [Fe-S] clusters: ISC (iron-sulphur cluster), SUF (sulphur assimilation), and NIF (nitrogen fixation) systems. The ISC system is conserved in eubacteria and eukaryotes (mitochondria), and has broad specificity, targeting general FeS proteins [, ]. It is encoded by the isc operon (iscRSUA-hscBA-fdx-iscX). IscS is a cysteine desulphurase, which obtains S from cysteine (converting it to alanine) and serves as a S donor for FeS cluster assembly. IscU and IscA act as scaffolds to accept S and Fe atoms, assembling clusters and transfering them to recipient apoproteins. HscA is a molecular chaperone and HscB is a co-chaperone. Fdx is a [2Fe-2S]-type ferredoxin. IscR is a transcription factor that regulates expression of the isc operon. IscX (also known as YfhJ) appears to interact with IscS and may function as an Fe donor during cluster assembly []. The SUF system is an alternative pathway to the ISC system that operates under iron starvation and oxidative stress. It is found in eubacteria, archaea and eukaryotes (plastids). The SUF system is encoded by the suf operon (sufABCDSE), and the six encoded proteins are arranged into two complexes (SufSE and SufBCD) and one protein (SufA). SufS is a pyridoxal-phosphate (PLP) protein displaying cysteine desulphurase activity. SufE acts as a scaffold protein that accepts S from SufS and donates it to SufA []. SufC is an ATPase with an unorthodox ATP-binding cassette (ABC)-like component. No specific functions have been assigned to SufB and SufD. SufA is homologous to IscA [], acting as a scaffold protein in which Fe and S atoms are assembled into [FeS] cluster forms, which can then easily be transferred to apoproteins targets. In the NIF system, NifS and NifU are required for the formation of metalloclusters of nitrogenase in Azotobacter vinelandii, and other organisms, as well as in the maturation of other FeS proteins. Nitrogenase catalyses the fixation of nitrogen. It contains a complex cluster, the FeMo cofactor, which contains molybdenum, Fe and S. NifS is a cysteine desulphurase. NifU binds one Fe atom at its N-terminal, assembling an FeS cluster that is transferred to nitrogenase apoproteins []. Nif proteins involved in the formation of FeS clusters can also be found in organisms that do not fix nitrogen []. This entry represents the N-terminal of NifU and homologous proteins. NifU contains two domains: an N-terminal and a C-terminal domain (IPR001075 from INTERPRO) []. These domains exist either together or on different polypeptides, both domains being found in organisms that do not fix nitrogen (e.g. yeast), so they have a broader significance in the cell than nitrogen fixation. ; GO: 0005506 iron ion binding, 0051536 iron-sulfur cluster binding, 0016226 iron-sulfur cluster assembly; PDB: 3LVL_A 4EB5_C 4EB7_C 1WFZ_A 2Z7E_C 2AZH_A 1XJS_A 1Q48_A 1R9P_A 2KQK_A ....

>TIGR02000 NifU_proper Fe-S cluster assembly protein NifU

Probab=98.98  E-value=5.9e-10  Score=80.87  Aligned_cols=47  Identities=32%  Similarity=0.594  Sum_probs=43.7

Q ss_pred             hhHHhhcCCHHHHHHhc-CCCCchhHHHHHHHHHHHHHHHHHHHhhCC
Q 046034            2 ANLRNLSGLSKEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAKHTK   48 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~L-gLP~~K~HCA~LA~~ALk~AI~dY~~k~~~   48 (64)
                      .++||+.|++++|.++| ||||.|+||+.|+.+||+.||.+|+++...
T Consensus        80 tv~ea~~i~~~di~~~L~~lpp~r~~CA~La~~Al~~Al~~y~~kp~~  127 (290)
T TIGR02000        80 TLDEALKVSNQDIADYLGGLPPEKMHCSVMGQEALEAAIANYRGEPLE  127 (290)
T ss_pred             CHHHHHHhhHHHHHHHHcCCChhhchHHHHHHHHHHHHHHHHhcCccc
Confidence            47899999999999999 899999999999999999999999987654

Three different but partially homologous Fe-S cluster assembly systems have been described: Isc, Suf, and Nif. The latter is associated with donation of an Fe-S cluster to nitrogenase in a number of nitrogen-fixing species. NifU, described here, consists of an N-terminal domain (pfam01592) and a C-terminal domain (pfam01106). Homologs with an equivalent domain archictecture from Helicobacter and Campylobacter, however, are excluded from this model by a high trusted cutoff. The model, therefore, is specific for NifU involved in nitrogenase maturation. The related model TIGR01999 homologous to the N-terminus of this model describes IscU from the Isc system as in E. coli, Saccharomyces cerevisiae, and Homo sapiens.

>COG0822 IscU NifU homolog involved in Fe-S cluster formation [Energy production and conversion]

Probab=98.68  E-value=1.3e-08  Score=68.22  Aligned_cols=47  Identities=43%  Similarity=0.644  Sum_probs=43.0

Q ss_pred             hhHHhhcCC--HHHHHHhcC-----------------CCCchhHHHHHHHHHHHHHHHHHHHhhCC
Q 046034            2 ANLRNLSGL--SKEIAKHLS-----------------LPPVKLHCSMLAEDAIKAAVKDYEAKHTK   48 (64)
Q Consensus         2 ~~~EA~~I~--~~dI~e~Lg-----------------LP~~K~HCA~LA~~ALk~AI~dY~~k~~~   48 (64)
                      .++||++|+  ..++.+.||                 +||.|+||++|+.+||+.||.+|..++..
T Consensus        82 ti~EAl~i~~~~~~m~~~~~~~~~~~l~d~~~l~~v~~~p~r~~C~~L~~~al~~ai~~~~~~~~~  147 (150)
T COG0822          82 TLDEALKITEAFTDMAKELGGDPDDRLGDLVALAGVALPPARIKCSLLAWDALKAAIKDYKGKAEE  147 (150)
T ss_pred             CHHHHHHHHHHHHHHHHHcCCCccchhhhhHhhhhhccccccccchhccHHHHHHHHHHhhccccc
Confidence            478999999  999999995                 89999999999999999999999988654

>cd06664 IscU_like Iron-sulfur cluster scaffold-like proteins

Probab=97.77  E-value=1.9e-05  Score=49.70  Aligned_cols=37  Identities=43%  Similarity=0.589  Sum_probs=32.7

Q ss_pred             hhHHhhcCCHHHHHHh----------c-CCCCchhHHHHHHHHHHHHH
Q 046034            2 ANLRNLSGLSKEIAKH----------L-SLPPVKLHCSMLAEDAIKAA   38 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~----------L-gLP~~K~HCA~LA~~ALk~A   38 (64)
                      .++|+..|+.+.+...          + ++||.|+||+.|+.+||+.|
T Consensus        76 ~~~ea~~i~~~~~~~~~~~~~l~~~~~~~~~~~R~~Ca~L~~~Al~~a  123 (123)
T cd06664          76 TLDEALKLLNKDIAMLDGKEELAALAGVGLPPARIHCALLAWKALKAA  123 (123)
T ss_pred             cHHHHHHHHHHHHHHhcCchhHHHhcccccCcccchHHHHHHHHHHhC
Confidence            4688999999999887          5 89999999999999999864

IscU_like and NifU_like proteins. IscU and NifU function as a scaffold for the assembly of [2Fe-2S] clusters before they are transferred to apo target proteins. They are highly conserved and play vital roles in the ISC and NIF systems of Fe-S protein maturation. NIF genes participate in nitrogen fixation in several isolated bacterial species. The NifU domain, however, is also found in bacteria that do not fix nitrogen, so it may have wider significance in the cell. Human IscU interacts with frataxin, the Friedreich ataxia gene product, and incorrectly spliced IscU has been shown to disrupt iron homeostasis in skeletal muscle and cause myopathy.

>TIGR01994 SUF_scaf_2 SUF system FeS assembly protein, NifU family

Probab=92.79  E-value=0.15  Score=33.16  Aligned_cols=21  Identities=29%  Similarity=0.510  Sum_probs=18.6

Q ss_pred             CCCchhHHHHHHHHHHHHHHH
Q 046034           20 LPPVKLHCSMLAEDAIKAAVK   40 (64)
Q Consensus        20 LP~~K~HCA~LA~~ALk~AI~   40 (64)
                      -.|.+++|+.|+.+||+.||.
T Consensus       117 ~~p~R~~Ca~L~~~al~~al~  137 (137)
T TIGR01994       117 KFPARIKCATLAWKALERALA  137 (137)
T ss_pred             cCcchHHHHHHHHHHHHHHhC
Confidence            368999999999999999873

Three iron-sulfur cluster assembly systems are known so far. ISC is broadly distributed while NIF tends to be associated with nitrogenase in nitrogen-fixing bacteria. The most recently described is SUF, believed to be important to maintain the function during aerobic stress of enzymes with labile Fe-S clusters. It is fairly widely distributed. This family represents one of two different proteins proposed to act as a scaffold on which the Fe-S cluster is built and from which it is transferred.

---

Homologous Structure Templates

Structure Templates Detected by BLAST

Original result of BLAST against Protein Data Bank

ID	Length	Definition	E-value
Query	64
1wfz_A	130	Solution Structure Of Iron-Sulfur Cluster Protein U		3e-09
1q48_A	134	Solution Nmr Structure Of The Haemophilus Influenza		7e-09
3lvl_A	129	Crystal Structure Of E.Coli Iscs-Iscu Complex Lengt		2e-08
2l4x_A	128	Solution Structure Of Apo-Iscu(Wt) Length = 128		2e-08
2kqk_A	128	Solution Structure Of Apo-Iscu(D39a) Length = 128		2e-08

>pdb|1WFZ|A Chain A, Solution Structure Of Iron-Sulfur Cluster Protein U (Iscu) Length = 130

Iteration: 1
 Score = 57.0 bits (136), Expect = 3e-09,   Method: Compositional matrix adjust.
 Identities = 26/34 (76%), Positives = 29/34 (85%)
Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           +IAK L LPPVKLHCSMLAEDAIKAA+ DY+ K 
Sbjct: 88  DIAKELCLPPVKLHCSMLAEDAIKAALADYKLKQ 121

>pdb|1Q48|A Chain A, Solution Nmr Structure Of The Haemophilus Influenzae Iron- Sulfur Cluster Assembly Protein U (Iscu) With Zinc Bound At The Active Site. Northeast Structural Genomics Consortium Target Ir24. This Protein Is Not Apo, It Is A Model Without Zinc Binding Constraints. Length = 134

Iteration: 1
 Score = 55.5 bits (132), Expect = 7e-09,   Method: Compositional matrix adjust.
 Identities = 24/34 (70%), Positives = 30/34 (88%)
Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           +IA+ L LPPVK+HCS+LAEDAIKAA+ DY+AK 
Sbjct: 92  QIAEELELPPVKVHCSILAEDAIKAAIADYKAKQ 125

>pdb|3LVL|A Chain A, Crystal Structure Of E.Coli Iscs-Iscu Complex Length = 129

Iteration: 1
 Score = 54.3 bits (129), Expect = 2e-08,   Method: Compositional matrix adjust.
 Identities = 23/34 (67%), Positives = 30/34 (88%)
Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           +IA+ L LPPVK+HCS+LAEDAIKAA+ DY++K 
Sbjct: 93  DIAEELELPPVKIHCSILAEDAIKAAIADYKSKR 126

>pdb|2L4X|A Chain A, Solution Structure Of Apo-Iscu(Wt) Length = 128

Iteration: 1
 Score = 54.3 bits (129), Expect = 2e-08,   Method: Compositional matrix adjust.
 Identities = 23/34 (67%), Positives = 30/34 (88%)
Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           +IA+ L LPPVK+HCS+LAEDAIKAA+ DY++K 
Sbjct: 92  DIAEELELPPVKIHCSILAEDAIKAAIADYKSKR 125

>pdb|2KQK|A Chain A, Solution Structure Of Apo-Iscu(D39a) Length = 128

Iteration: 1
 Score = 54.3 bits (129), Expect = 2e-08,   Method: Compositional matrix adjust.
 Identities = 23/34 (67%), Positives = 30/34 (88%)
Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           +IA+ L LPPVK+HCS+LAEDAIKAA+ DY++K 
Sbjct: 92  DIAEELELPPVKIHCSILAEDAIKAAIADYKSKR 125

Structure Templates Detected by RPS-BLAST

Original result of RPS-BLAST against PDB70 database

ID	Length	Definition	E-value
Query	64
3lvl_A	129	NIFU-like protein; protein-protein complex, struct	7e-14
4eb5_C	153	NIFU protein (NIFU-1); scaffold, transferase-metal	4e-12
2z7e_A	157	ISCU protein, NIFU-like protein; iron-sulfur clust	6e-12
1su0_B	159	NIFU like protein ISCU; structural genomics, BSGC	2e-08
1xjs_A	147	NIFU-like protein; SR17, structure, autostructure,	3e-08
2qq4_A	138	Iron-sulfur cluster biosynthesis protein ISCU; zin	2e-04

>3lvl_A NIFU-like protein; protein-protein complex, structural genomics, montreal-kings bacterial structural genomics initiative, BSGI; HET: PLP; 3.00A {Escherichia coli} PDB: 2l4x_A 2kqk_A 1q48_A 1r9p_A 1wfz_A Length = 129

 Score = 60.1 bits (146), Expect = 7e-14
 Identities = 23/37 (62%), Positives = 30/37 (81%)

Query: 12  KEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTK 48
            +IA+ L LPPVK+HCS+LAEDAIKAA+ DY++K   
Sbjct: 92  TDIAEELELPPVKIHCSILAEDAIKAAIADYKSKREA 128

>4eb5_C NIFU protein (NIFU-1); scaffold, transferase-metal binding protein complex; HET: PLP EPE; 2.53A {Archaeoglobus fulgidus} PDB: 4eb7_C* Length = 153

 Score = 55.9 bits (135), Expect = 4e-12
 Identities = 18/53 (33%), Positives = 27/53 (50%), Gaps = 1/53 (1%)

Query: 12  KEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASEAAPAEKAAD 63
             +A+ L  LP  K+HCS LA DA++ A+ DY  K+ K     E    ++   
Sbjct: 86  DAVAEALGGLPKQKMHCSNLAADALRRAIVDYFRKNGKIDKIKELGLEKELEK 138

>2z7e_A ISCU protein, NIFU-like protein; iron-sulfur cluster, iron, biosynthesis, [2Fe-2S], asymmetric trimer, three conserved Cys; 2.30A {Aquifex aeolicus} Length = 157

 Score = 55.6 bits (134), Expect = 6e-12
 Identities = 17/44 (38%), Positives = 26/44 (59%), Gaps = 1/44 (2%)

Query: 12  KEIAKHLS-LPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASE 54
           K+I + L  LPP K+HC+ L  + +  A+KDY  K  +   AS+
Sbjct: 91  KDIFEELGGLPPQKIHCTNLGLETLHVAIKDYLMKQGRVEEASK 134

>1su0_B NIFU like protein ISCU; structural genomics, BSGC structure funded by NI protein structure initiative, PSI; 2.30A {Streptococcus pyogenes} SCOP: d.224.1.2 Length = 159

 Score = 46.6 bits (111), Expect = 2e-08
 Identities = 10/42 (23%), Positives = 20/42 (47%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAASE 54
           E+   ++  P ++ CS LA +A+K A+K        +    +
Sbjct: 113 ELLAGVAKFPQRIKCSTLAWNALKEAIKRSANAQHLTDQNVK 154

>1xjs_A NIFU-like protein; SR17, structure, autostructure, iron-sulfur, zinc, northeast structural genomics consortium, NESG; NMR {Bacillus subtilis} SCOP: d.224.1.2 PDB: 2azh_A Length = 147

 Score = 45.9 bits (109), Expect = 3e-08
 Identities = 8/34 (23%), Positives = 17/34 (50%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           E  + +S  P ++ C+ L+  A++  V   E  +
Sbjct: 114 EALQGVSKFPARIKCATLSWKALEKGVAKEEGGN 147

>2qq4_A Iron-sulfur cluster biosynthesis protein ISCU; zinc binding, iron-sulfur cluster binding, three conserved Cys, three beta strands; 1.85A {Thermus thermophilus} Length = 138

 Score = 35.4 bits (82), Expect = 2e-04
 Identities = 6/22 (27%), Positives = 14/22 (63%)

Query: 19  SLPPVKLHCSMLAEDAIKAAVK 40
           +  P ++ C+ LA  A++ A++
Sbjct: 117 AKLPARVKCATLAWHALEEALR 138

Structure Templates Detected by HHsearch

Original result of HHsearch against PDB70 database

ID	Length	Definition	Probability
Query	64
3lvl_A	129	NIFU-like protein; protein-protein complex, struct	99.44
4eb5_C	153	NIFU protein (NIFU-1); scaffold, transferase-metal	99.41
2z7e_A	157	ISCU protein, NIFU-like protein; iron-sulfur clust	99.2
1su0_B	159	NIFU like protein ISCU; structural genomics, BSGC	97.96
1xjs_A	147	NIFU-like protein; SR17, structure, autostructure,	97.89
2qq4_A	138	Iron-sulfur cluster biosynthesis protein ISCU; zin	97.81

>3lvl_A NIFU-like protein; protein-protein complex, structural genomics, montreal-kings bacterial structural genomics initiative, BSGI; HET: PLP; 3.00A {Escherichia coli} PDB: 2l4x_A 2kqk_A 1q48_A 1r9p_A 1wfz_A

Probab=99.44  E-value=1.2e-13  Score=88.87  Aligned_cols=47  Identities=49%  Similarity=0.735  Sum_probs=43.8

Q ss_pred             hhHHhhcCCHHHHHHhcCCCCchhHHHHHHHHHHHHHHHHHHHhhCC
Q 046034            2 ANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTK   48 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~LgLP~~K~HCA~LA~~ALk~AI~dY~~k~~~   48 (64)
                      .++||+.|++++|.+.|||||.|+||++|+.+||+.||.+|+.|+..
T Consensus        82 t~~ea~~i~~~~i~~~L~l~p~r~~Ca~La~~Al~~Al~~y~~k~~~  128 (129)
T 3lvl_A           82 SLDEAQAIKNTDIAEELELPPVKIHCSILAEDAIKAAIADYKSKREA  128 (129)
T ss_dssp             CHHHHHTCCHHHHHHHHTCCGGGGHHHHHHHHHHHHHHHHHHHSCC-
T ss_pred             cHHHHHHHHHHHHHHHcCCCccchhHHHHHHHHHHHHHHHHHHhccC
Confidence            47899999999999999999999999999999999999999998653

>4eb5_C NIFU protein (NIFU-1); scaffold, transferase-metal binding protein complex; HET: PLP EPE; 2.53A {Archaeoglobus fulgidus} PDB: 4eb7_C*

Probab=99.41  E-value=3.6e-13  Score=89.65  Aligned_cols=49  Identities=37%  Similarity=0.493  Sum_probs=45.5

Q ss_pred             hhHHhhcCCHHHHHHhc-CCCCchhHHHHHHHHHHHHHHHHHHHhhCCCc
Q 046034            2 ANLRNLSGLSKEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSS   50 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~L-gLP~~K~HCA~LA~~ALk~AI~dY~~k~~~~~   50 (64)
                      .++||+.|++++|+++| ||||.|+|||+|+.+||+.||.+|+.+++...
T Consensus        76 tleEA~~i~~~~i~~~L~glpp~Ri~CA~La~~AL~~Al~~y~~k~~~~~  125 (153)
T 4eb5_C           76 TIEEALKITRDAVAEALGGLPKQKMHCSNLAADALRRAIVDYFRKNGKID  125 (153)
T ss_dssp             BHHHHTTCCHHHHHHHHTCCCTTSHHHHHHHHHHHHHHHHHHHHHTTCHH
T ss_pred             CHHHHHHhhHHHHHHHhcCCCcchhHHHHHHHHHHHHHHHHHHHhcCCcc
Confidence            47899999999999999 89999999999999999999999999986543

>2z7e_A ISCU protein, NIFU-like protein; iron-sulfur cluster, iron, biosynthesis, [2Fe-2S], asymmetric trimer, three conserved Cys; 2.30A {Aquifex aeolicus}

Probab=99.20  E-value=5.9e-12  Score=83.81  Aligned_cols=48  Identities=33%  Similarity=0.531  Sum_probs=44.6

Q ss_pred             hhHHhhcCCHHHHHHhc-CCCCchhHHHHHHHHHHHHHHHHHHHhhCCC
Q 046034            2 ANLRNLSGLSKEIAKHL-SLPPVKLHCSMLAEDAIKAAVKDYEAKHTKS   49 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~L-gLP~~K~HCA~LA~~ALk~AI~dY~~k~~~~   49 (64)
                      .++||+.|++++|.+.| +|||.|+|||+|+.+||+.||.+|+.+++..
T Consensus        81 t~~EA~~i~~~~i~e~Lg~l~p~R~~Ca~La~~Al~~Al~~y~~k~~~~  129 (157)
T 2z7e_A           81 PIQYALNLTYKDIFEELGGLPPQKIHCTNLGLETLHVAIKDYLMKQGRV  129 (157)
T ss_dssp             BHHHHHHCCHHHHHHHHTCCCCSSCCTTCCHHHHHHHHHHHHHHTTTCH
T ss_pred             cHHHHHHHHhccHHHHhcccCcchhHhHHHHHHHHHHHHHHHHHhcCCc
Confidence            57899999999999999 7999999999999999999999999887653

>1su0_B NIFU like protein ISCU; structural genomics, BSGC structure funded by NI protein structure initiative, PSI; 2.30A {Streptococcus pyogenes} SCOP: d.224.1.2

Probab=97.96  E-value=6.3e-07  Score=59.24  Aligned_cols=24  Identities=38%  Similarity=0.562  Sum_probs=19.9

Q ss_pred             CCchhHHHHHHHHHHHHHHHHHHH
Q 046034           21 PPVKLHCSMLAEDAIKAAVKDYEA   44 (64)
Q Consensus        21 P~~K~HCA~LA~~ALk~AI~dY~~   44 (64)
                      +|.|+||++|+.+||+.||.++-.
T Consensus       121 ~p~R~~Ca~La~~Al~~Al~~~~~  144 (159)
T 1su0_B          121 FPQRIKCSTLAWNALKEAIKRSAN  144 (159)
T ss_dssp             CHHHHHHHHHHHHHHHHHHTC---
T ss_pred             CcchhHHHHHHHHHHHHHHHhhcc
Confidence            489999999999999999988533

>1xjs_A NIFU-like protein; SR17, structure, autostructure, iron-sulfur, zinc, northeast structural genomics consortium, NESG; NMR {Bacillus subtilis} SCOP: d.224.1.2 PDB: 2azh_A

Probab=97.89  E-value=2.9e-07  Score=60.04  Aligned_cols=23  Identities=26%  Similarity=0.497  Sum_probs=20.9

Q ss_pred             CCchhHHHHHHHHHHHHHHHHHH
Q 046034           21 PPVKLHCSMLAEDAIKAAVKDYE   43 (64)
Q Consensus        21 P~~K~HCA~LA~~ALk~AI~dY~   43 (64)
                      +|.|+||++|+.+||+.||.+|.
T Consensus       122 ~p~R~~Ca~La~~Al~~Al~~~e  144 (147)
T 1xjs_A          122 FPARIKCATLSWKALEKGVAKEE  144 (147)
T ss_dssp             STTTHHHHHHHHHHHHHHSCSTT
T ss_pred             CcchhHHHHHHHHHHHHHHHHhh
Confidence            48999999999999999997764

>2qq4_A Iron-sulfur cluster biosynthesis protein ISCU; zinc binding, iron-sulfur cluster binding, three conserved Cys, three beta strands; 1.85A {Thermus thermophilus}

Probab=97.81  E-value=6.4e-06  Score=53.06  Aligned_cols=39  Identities=23%  Similarity=0.272  Sum_probs=28.5

Q ss_pred             hhHHhhcCCHHHH---------------HHhc-CC--CCchhHHHHHHHHHHHHHHH
Q 046034            2 ANLRNLSGLSKEI---------------AKHL-SL--PPVKLHCSMLAEDAIKAAVK   40 (64)
Q Consensus         2 ~~~EA~~I~~~dI---------------~e~L-gL--P~~K~HCA~LA~~ALk~AI~   40 (64)
                      .++||+.|++..+               ++.| |+  +|.|+||++|+.+||+.||.
T Consensus        82 t~~ea~~i~~~~~~ml~~~~~~~~~l~~l~~l~~v~~~p~R~~Ca~La~~Al~~Al~  138 (138)
T 2qq4_A           82 KVAEALELSRKFQAMVVEGAPPDPTLGDLLALQGVAKLPARVKCATLAWHALEEALR  138 (138)
T ss_dssp             BHHHHHHHHHHHHHHHTTCCCCCGGGGGGGGGGGGGGCGGGHHHHHHHHHHHHHHHC
T ss_pred             cHHHHHHHHHHHHHHHhCCCCchhhhhHHhhccCcccCcchhhHHHHHHHHHHHHhC
Confidence            4677888776542               2233 43  47899999999999999983

---

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	64
d1wfza_	130	d.224.1.2 (A:) Iron-sulfur cluster protein U (IscU	8e-13
d1r9pa_	134	d.224.1.2 (A:) NifU-like protein HI0377 {Haemophil	3e-09
d1xjsa_	147	d.224.1.2 (A:) NifU {Bacillus subtilis [TaxId: 142	3e-07
d1su0b_	136	d.224.1.2 (B:) IscU homolog SPy0289 {Streptococcus	4e-05

>d1wfza_ d.224.1.2 (A:) Iron-sulfur cluster protein U (IscU) {Mouse (Mus musculus), mitochondrial [TaxId: 10090]} Length = 130

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: Iron-sulfur cluster protein U (IscU)
species: Mouse (Mus musculus), mitochondrial [TaxId: 10090]

 Score = 56.1 bits (135), Expect = 8e-13
 Identities = 28/42 (66%), Positives = 31/42 (73%)

Query: 12  KEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSAAS 53
            +IAK L LPPVKLHCSMLAEDAIKAA+ DY+ K    S  S
Sbjct: 87  TDIAKELCLPPVKLHCSMLAEDAIKAALADYKLKQESKSGPS 128

>d1r9pa_ d.224.1.2 (A:) NifU-like protein HI0377 {Haemophilus influenzae [TaxId: 727]} Length = 134

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: NifU-like protein HI0377
species: Haemophilus influenzae [TaxId: 727]

 Score = 46.9 bits (111), Expect = 3e-09
 Identities = 24/35 (68%), Positives = 30/35 (85%)

Query: 12  KEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
            +IA+ L LPPVK+HCS+LAEDAIKAA+ DY+AK 
Sbjct: 91  SQIAEELELPPVKVHCSILAEDAIKAAIADYKAKQ 125

>d1xjsa_ d.224.1.2 (A:) NifU {Bacillus subtilis [TaxId: 1423]} Length = 147

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: NifU
species: Bacillus subtilis [TaxId: 1423]

 Score = 42.3 bits (99), Expect = 3e-07
 Identities = 8/34 (23%), Positives = 17/34 (50%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKH 46
           E  + +S  P ++ C+ L+  A++  V   E  +
Sbjct: 114 EALQGVSKFPARIKCATLSWKALEKGVAKEEGGN 147

>d1su0b_ d.224.1.2 (B:) IscU homolog SPy0289 {Streptococcus pyogenes [TaxId: 1314]} Length = 136

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: IscU homolog SPy0289
species: Streptococcus pyogenes [TaxId: 1314]

 Score = 36.1 bits (83), Expect = 4e-05
 Identities = 10/28 (35%), Positives = 18/28 (64%)

Query: 13  EIAKHLSLPPVKLHCSMLAEDAIKAAVK 40
           E+   ++  P ++ CS LA +A+K A+K
Sbjct: 108 ELLAGVAKFPQRIKCSTLAWNALKEAIK 135

Homologous Domains Detected by HHsearch

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

ID	Length	Definition	Probability
Query	64
d1wfza_	130	Iron-sulfur cluster protein U (IscU) {Mouse (Mus m	99.47
d1r9pa_	134	NifU-like protein HI0377 {Haemophilus influenzae [	99.18
d1xjsa_	147	NifU {Bacillus subtilis [TaxId: 1423]}	97.08
d1su0b_	136	IscU homolog SPy0289 {Streptococcus pyogenes [TaxI	95.09

>d1wfza_ d.224.1.2 (A:) Iron-sulfur cluster protein U (IscU) {Mouse (Mus musculus), mitochondrial [TaxId: 10090]}

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: Iron-sulfur cluster protein U (IscU)
species: Mouse (Mus musculus), mitochondrial [TaxId: 10090]

Probab=99.47  E-value=2.8e-14  Score=91.30  Aligned_cols=50  Identities=56%  Similarity=0.776  Sum_probs=46.1

Q ss_pred             hhHHhhcCCHHHHHHhcCCCCchhHHHHHHHHHHHHHHHHHHHhhCCCcc
Q 046034            2 ANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSSA   51 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~LgLP~~K~HCA~LA~~ALk~AI~dY~~k~~~~~~   51 (64)
                      .++|++.|++++|.++|||||.|+||++|+.+||+.||.+|+.|+..+..
T Consensus        77 t~~ea~~i~~~~i~~~l~l~p~R~~CA~La~~aL~~Al~~y~~k~~~~~~  126 (130)
T d1wfza_          77 TVEEALTIKNTDIAKELCLPPVKLHCSMLAEDAIKAALADYKLKQESKSG  126 (130)
T ss_dssp             BHHHHHHCCHHHHHHHHTCCGGGHHHHHHHHHHHHHHHHHHHHHHHCSSC
T ss_pred             CHHHHHhcCcHHHHHHcCCCcchhhHHHHHHHHHHHHHHHHHHhccCccC
Confidence            47899999999999999999999999999999999999999998866543

>d1r9pa_ d.224.1.2 (A:) NifU-like protein HI0377 {Haemophilus influenzae [TaxId: 727]}

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: NifU-like protein HI0377
species: Haemophilus influenzae [TaxId: 727]

Probab=99.18  E-value=1.5e-11  Score=77.63  Aligned_cols=49  Identities=49%  Similarity=0.676  Sum_probs=45.5

Q ss_pred             hhHHhhcCCHHHHHHhcCCCCchhHHHHHHHHHHHHHHHHHHHhhCCCc
Q 046034            2 ANLRNLSGLSKEIAKHLSLPPVKLHCSMLAEDAIKAAVKDYEAKHTKSS   50 (64)
Q Consensus         2 ~~~EA~~I~~~dI~e~LgLP~~K~HCA~LA~~ALk~AI~dY~~k~~~~~   50 (64)
                      .++||..|++++|.+.|++||.++||+.|+.+||+.||.+|+.+++-..
T Consensus        81 t~~ea~~i~~~~i~e~l~~~p~r~~Ca~L~~~al~~al~~y~~k~g~~~  129 (134)
T d1r9pa_          81 SLEEAGAIKNSQIAEELELPPVKVHCSILAEDAIKAAIADYKAKQGLEH  129 (134)
T ss_dssp             BHHHHTTSHHHHHHHHHTCCSTTHHHHHHHHHHHHHHHHHHHHTTTCCC
T ss_pred             CHHHHHHhcchHHHHhhcCCCchhHHHHHHHHHHHHHHHHHHHhcCCch
Confidence            4689999999999999999999999999999999999999999987554

>d1xjsa_ d.224.1.2 (A:) NifU {Bacillus subtilis [TaxId: 1423]}

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: NifU
species: Bacillus subtilis [TaxId: 1423]

Probab=97.08  E-value=5.3e-05  Score=47.22  Aligned_cols=26  Identities=23%  Similarity=0.405  Sum_probs=23.2

Q ss_pred             CCCchhHHHHHHHHHHHHHHHHHHHh
Q 046034           20 LPPVKLHCSMLAEDAIKAAVKDYEAK   45 (64)
Q Consensus        20 LP~~K~HCA~LA~~ALk~AI~dY~~k   45 (64)
                      -.|.|+||+.|+.+||+.||.+|.++
T Consensus       121 ~~p~R~~Ca~L~~~Al~~al~~~~~~  146 (147)
T d1xjsa_         121 KFPARIKCATLSWKALEKGVAKEEGG  146 (147)
T ss_dssp             TSTTTHHHHHHHHHHHHHHSCSTTCC
T ss_pred             cCcchhHHHHHHHHHHHHHHHHhhCC
Confidence            35699999999999999999999765

>d1su0b_ d.224.1.2 (B:) IscU homolog SPy0289 {Streptococcus pyogenes [TaxId: 1314]}

class: Alpha and beta proteins (a+b)
fold: SufE/NifU
superfamily: SufE/NifU
family: NifU/IscU domain
domain: IscU homolog SPy0289
species: Streptococcus pyogenes [TaxId: 1314]

Probab=95.09  E-value=0.0039  Score=37.83  Aligned_cols=20  Identities=45%  Similarity=0.715  Sum_probs=18.0

Q ss_pred             CCchhHHHHHHHHHHHHHHH
Q 046034           21 PPVKLHCSMLAEDAIKAAVK   40 (64)
Q Consensus        21 P~~K~HCA~LA~~ALk~AI~   40 (64)
                      .|.|+||+.|+.+||+.||.
T Consensus       116 ~p~R~~Ca~L~~~Al~~al~  135 (136)
T d1su0b_         116 FPQRIKCSTLAWNALKEAIK  135 (136)
T ss_dssp             CHHHHHHHHHHHHHHHHHHT
T ss_pred             CcchhHHHHHHHHHHHHHHh
Confidence            45899999999999999985