Citrus Sinensis ID: 030782


Local Sequence Feature Prediction

Prediction and (Method)Result
Residue Number Marker
Protein Sequence ?
Secondary Structure (PSIPRED) ?
Secondary Structure Prediction (SSPRO) ?
Coil and Loop (DISEMBL) ?
Flexible Loop (DISEMBL) ?
Low Complexity Region (SEG) ?
Disordered region (IsUnstruct) ?
Disordered Region (DISOPRED) ?
Disordered Region (DISEMBL) ?
Disordered Region (DISPRO) ?
Transmembrane Helix (TMHMM) ?
Transmembrane Helix (HMMTOP) ?
Transmembrane Helix (MEMSAT) ?
TM Helix, Signal Peptide (MEMSAT_SVM) ?
TM Helix, Signal Peptide (Phobius) ?
Signal Peptide (SignalP HMM Mode) ?
Signal Peptide (SignalP NN Mode) ?
Coiled Coils (COILS) ?
Positional Conservation ?
 
--------10--------20--------30--------40--------50--------60--------70--------80--------90-------100-------110-------120-------130-------140-------150-------160-------170-
MKTSGSKNENGSKAEVEASSAAGNKPAESSKPSEPPKDYIHVRARRGQATDSHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGSFERAT
cccccccccccccHHHHHcccccccccccccccccccccccccccccccccccHHHHHHHHHHHHHHHHHHHHHcccccccccHHHHHHHHHHHHHHHHHHHHHHHHHHHHcccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
ccccccccccccccccccccccccccccccccccccccEEEEEEcccccccccHHHHHHHHHHHHHHHHHHHHHccccccHccHHHHHHHHHHHHHHHHHHHHHHHHHHHHHcccccccccccccccHHcccccccccccccccccccHHcccccccccEEEccccccccc
mktsgsknengskaeveassaagnkpaesskpseppkdyihvrarrgqatdshSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSrmnltptiegfhpkdlgeqafdatgmifgsQTAREYAQGSQQDWlhmqvggsferat
mktsgsknengskaeveassaagnkpaesskpseppkDYIHVRarrgqatdshslaeRARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGSFERAT
MKTSGSKNENGSKAEVEASSAAGNkpaesskpseppkDYIHVRARRGQATDSHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGSFERAT
*******************************************************************MKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGSQ**************************
**********************************************************ARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLS*****************************************************************
***********************************PKDYIHVR*****************REKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGSFERAT
***********************************PKDYIHVRARRGQ***SHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGS*****
ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiHHHHHHHHHHHHHHHHHHHooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihhhhhhhhhhhhhhhhhhhhhhhhhoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooohhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
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MKTSGSKNENGSKAEVEASSAAGNKPAESSKPSEPPKDYIHVRARRGQATDSHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYxxxxxxxxxxxxxxxxxxxxxMNLTPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGSFERAT
no confident homologs detected

Close Homologs for Annotation Transfer

Close Homologs in SWISS-PROT Database Detected by BLAST ?

ID ?Alignment graph ?Length ? Definition ? RBH(Q2H) ? RBH(H2Q) ? Q cover ? H cover ? Identity ? E-value ?
Query171 2.2.26 [Sep-21-2011]
Q9LV17281 Transcription factor bHLH no no 0.853 0.519 0.673 4e-50
Q0JXE7343 Transcription factor BPE no no 0.660 0.329 0.796 7e-46
Q9LK48371 Transcription factor bHLH no no 0.654 0.301 0.697 2e-40
Q9FJL4498 Transcription factor bHLH no no 0.508 0.174 0.850 2e-40
Q9SRT2456 Transcription factor bHLH no no 0.532 0.199 0.802 5e-39
Q9CAA9486 Transcription factor bHLH no no 0.555 0.195 0.775 3e-38
Q93W88286 Transcription factor bHLH no no 0.631 0.377 0.690 1e-35
Q6NKN9366 Transcription factor bHLH no no 0.590 0.275 0.692 2e-34
Q9C670390 Transcription factor bHLH no no 0.643 0.282 0.630 2e-34
Q8GY61335 Transcription factor bHLH no no 0.456 0.232 0.833 7e-34
>sp|Q9LV17|BH079_ARATH Transcription factor bHLH79 OS=Arabidopsis thaliana GN=BHLH79 PE=2 SV=1 Back     alignment and function desciption
 Score =  197 bits (500), Expect = 4e-50,   Method: Compositional matrix adjust.
 Identities = 99/147 (67%), Positives = 108/147 (73%), Gaps = 1/147 (0%)

Query: 25  KPAESSKPSEPPKDYIHVRARRGQATDSHSLAERARREKISERMKILQDLVPGCNKVIGK 84
           K  E     EPPKDYIHVRARRGQATD HSLAERARREKISE+M  LQD++PGCNK+IGK
Sbjct: 136 KATEQKNKPEPPKDYIHVRARRGQATDRHSLAERARREKISEKMTALQDIIPGCNKIIGK 195

Query: 85  ALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPTIEGFHPKDLGEQAFDATGMIFGS 144
           ALVLDEIINYIQSLQRQVEFLSMKLE VNS  +  PTI  F   DLG    D    I+  
Sbjct: 196 ALVLDEIINYIQSLQRQVEFLSMKLEVVNSGASTGPTIGVFPSGDLGTLPIDVHRTIYEQ 255

Query: 145 QTAREYAQGSQQDWLHMQVGGSFERAT 171
           Q A E  + SQ +WLHMQV G+F R T
Sbjct: 256 QEANE-TRVSQPEWLHMQVDGNFNRTT 281





Arabidopsis thaliana (taxid: 3702)
>sp|Q0JXE7|BPE_ARATH Transcription factor BPE OS=Arabidopsis thaliana GN=BPE PE=2 SV=1 Back     alignment and function description
>sp|Q9LK48|BH077_ARATH Transcription factor bHLH77 OS=Arabidopsis thaliana GN=BHLH77 PE=2 SV=1 Back     alignment and function description
>sp|Q9FJL4|BH078_ARATH Transcription factor bHLH78 OS=Arabidopsis thaliana GN=BHLH78 PE=2 SV=1 Back     alignment and function description
>sp|Q9SRT2|BH062_ARATH Transcription factor bHLH62 OS=Arabidopsis thaliana GN=BHLH62 PE=2 SV=1 Back     alignment and function description
>sp|Q9CAA9|BH049_ARATH Transcription factor bHLH49 OS=Arabidopsis thaliana GN=BHLH49 PE=2 SV=1 Back     alignment and function description
>sp|Q93W88|BH137_ARATH Transcription factor bHLH137 OS=Arabidopsis thaliana GN=BHLH137 PE=2 SV=1 Back     alignment and function description
>sp|Q6NKN9|BH074_ARATH Transcription factor bHLH74 OS=Arabidopsis thaliana GN=BHLH74 PE=2 SV=1 Back     alignment and function description
>sp|Q9C670|BH076_ARATH Transcription factor bHLH76 OS=Arabidopsis thaliana GN=BHLH76 PE=2 SV=1 Back     alignment and function description
>sp|Q8GY61|BH063_ARATH Transcription factor bHLH63 OS=Arabidopsis thaliana GN=BHLH63 PE=2 SV=1 Back     alignment and function description

Close Homologs in the Non-Redundant Database Detected by BLAST ?

GI ?Alignment Graph ?Length ? Definition ? Q cover ? H cover ? Identity ? E-value ?
Query171
224119176 272 predicted protein [Populus trichocarpa] 0.994 0.625 0.826 9e-77
224133354213 predicted protein [Populus trichocarpa] 0.994 0.798 0.832 7e-75
255540845 275 DNA binding protein, putative [Ricinus c 0.988 0.614 0.825 1e-74
55419646222 bHLH transcription factor [Gossypium hir 1.0 0.770 0.810 9e-74
297734057269 unnamed protein product [Vitis vinifera] 0.988 0.628 0.820 4e-73
225456604 284 PREDICTED: transcription factor bHLH79 i 0.988 0.595 0.820 7e-73
356516734269 PREDICTED: transcription factor bHLH79-l 1.0 0.635 0.8 2e-71
449440736 276 PREDICTED: transcription factor bHLH79-l 1.0 0.619 0.755 1e-70
351720977240 uncharacterized protein LOC100306638 [Gl 0.964 0.687 0.792 1e-67
356562791229 PREDICTED: transcription factor bHLH79-l 0.982 0.733 0.742 1e-67
>gi|224119176|ref|XP_002318005.1| predicted protein [Populus trichocarpa] gi|222858678|gb|EEE96225.1| predicted protein [Populus trichocarpa] Back     alignment and taxonomy information
 Score =  291 bits (744), Expect = 9e-77,   Method: Compositional matrix adjust.
 Identities = 143/173 (82%), Positives = 154/173 (89%), Gaps = 3/173 (1%)

Query: 2   KTSGSKNENG-SKAEVEASSAAGNKPAE-SSKPSEPP-KDYIHVRARRGQATDSHSLAER 58
           K SGS+NEN  S+AE+EASSAA NKPAE SSKPSEPP +DYIHVR+RRGQATDSHSLAER
Sbjct: 100 KISGSRNENNDSRAEIEASSAANNKPAEPSSKPSEPPMQDYIHVRSRRGQATDSHSLAER 159

Query: 59  ARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNL 118
           ARRE+I ERMKILQDLVPGCNKVIGKAL LDEIINYIQSLQ QVEFLSMKLEAVNSRM+ 
Sbjct: 160 ARRERIGERMKILQDLVPGCNKVIGKALALDEIINYIQSLQCQVEFLSMKLEAVNSRMST 219

Query: 119 TPTIEGFHPKDLGEQAFDATGMIFGSQTAREYAQGSQQDWLHMQVGGSFERAT 171
           +P IEG HPKDLG Q FDATGMIFG Q  R+Y QGSQ +WLHMQVGGSF+RAT
Sbjct: 220 SPAIEGLHPKDLGAQPFDATGMIFGPQPTRDYVQGSQPEWLHMQVGGSFKRAT 272




Source: Populus trichocarpa

Species: Populus trichocarpa

Genus: Populus

Family: Salicaceae

Order: Malpighiales

Class:

Phylum: Streptophyta

Superkingdom: Eukaryota

>gi|224133354|ref|XP_002321546.1| predicted protein [Populus trichocarpa] gi|222868542|gb|EEF05673.1| predicted protein [Populus trichocarpa] Back     alignment and taxonomy information
>gi|255540845|ref|XP_002511487.1| DNA binding protein, putative [Ricinus communis] gi|223550602|gb|EEF52089.1| DNA binding protein, putative [Ricinus communis] Back     alignment and taxonomy information
>gi|55419646|gb|AAV51936.1| bHLH transcription factor [Gossypium hirsutum] Back     alignment and taxonomy information
>gi|297734057|emb|CBI15304.3| unnamed protein product [Vitis vinifera] Back     alignment and taxonomy information
>gi|225456604|ref|XP_002267633.1| PREDICTED: transcription factor bHLH79 isoform 1 [Vitis vinifera] Back     alignment and taxonomy information
>gi|356516734|ref|XP_003527048.1| PREDICTED: transcription factor bHLH79-like [Glycine max] Back     alignment and taxonomy information
>gi|449440736|ref|XP_004138140.1| PREDICTED: transcription factor bHLH79-like [Cucumis sativus] gi|449477343|ref|XP_004154996.1| PREDICTED: transcription factor bHLH79-like [Cucumis sativus] Back     alignment and taxonomy information
>gi|351720977|ref|NP_001237962.1| uncharacterized protein LOC100306638 [Glycine max] gi|255629145|gb|ACU14917.1| unknown [Glycine max] Back     alignment and taxonomy information
>gi|356562791|ref|XP_003549652.1| PREDICTED: transcription factor bHLH79-like [Glycine max] Back     alignment and taxonomy information

Prediction of Gene Ontology (GO) Terms

Close Homologs with Gene Ontology terms Detected by BLAST ?

ID ? Alignment graph ? Length ? Definition ? Q cover ? H cover ? Identity ? E-value ?
Query171
UNIPROTKB|Q84T08265 OSJNBa0087C10.10 "BHLH transcr 0.982 0.633 0.645 2.2e-50
UNIPROTKB|Q69WS3268 OJ1118_E12.15 "Putative bHLH p 0.982 0.626 0.585 9.1e-45
TAIR|locus:2172209281 AT5G62610 "AT5G62610" [Arabido 0.988 0.601 0.591 1e-43
TAIR|locus:2202867343 BPEp "AT1G59640" [Arabidopsis 0.532 0.265 0.924 9.9e-39
UNIPROTKB|Q69JJ6428 OSJNBa0026C08.22 "TA1 protein- 0.923 0.369 0.521 1.2e-33
TAIR|locus:2079676456 AT3G07340 "AT3G07340" [Arabido 0.532 0.199 0.774 3.2e-33
UNIPROTKB|Q5VR96437 P0038C05.31-1 "Os06g0275600 pr 0.807 0.315 0.566 5.2e-33
UNIPROTKB|Q84QW1405 OJ1191_A10.109 "BHLH transcrip 0.672 0.283 0.619 3.7e-32
TAIR|locus:2095198371 AT3G23690 "AT3G23690" [Arabido 0.672 0.309 0.631 4.7e-32
UNIPROTKB|Q5N802481 P0004D12.24 "BHLH transcriptio 0.637 0.226 0.636 6e-32
UNIPROTKB|Q84T08 OSJNBa0087C10.10 "BHLH transcription factor, putative, expressed" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
 Score = 524 (189.5 bits), Expect = 2.2e-50, P = 2.2e-50
 Identities = 111/172 (64%), Positives = 130/172 (75%)

Query:     2 KTSGSKNENGSKAEVEASSAAGNXXXXXXXXXXXXXDYIHVRARRGQATDSHSLAERARR 61
             K+SG  +   ++AE ++ +A+ +             DYIHVRARRGQATDSHSLAERARR
Sbjct:    96 KSSGDNSSLRTEAETDSRNASKSGDQNPPPPEPPKQDYIHVRARRGQATDSHSLAERARR 155

Query:    62 EKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMNLTPT 121
             EKISERMKILQDLVPGCNKVIGKA VLDEIINYIQ+LQRQVEFLSMKLEAVN+ +N    
Sbjct:   156 EKISERMKILQDLVPGCNKVIGKASVLDEIINYIQALQRQVEFLSMKLEAVNAHVN--NG 213

Query:   122 IEGFHPKDLGEQAFD-ATGMIFGSQTAREYAQGSQ-QDWLHMQVGGSFERAT 171
             IE F PKD G Q ++ A G+ F  QT REYAQGS   +WLHMQ+GG++ER T
Sbjct:   214 IEAFPPKDFGAQVYNTAPGLTFDPQTPREYAQGSTPSEWLHMQIGGTYERVT 265




GO:0005634 "nucleus" evidence=IC
UNIPROTKB|Q69WS3 OJ1118_E12.15 "Putative bHLH protein" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
TAIR|locus:2172209 AT5G62610 "AT5G62610" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
TAIR|locus:2202867 BPEp "AT1G59640" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
UNIPROTKB|Q69JJ6 OSJNBa0026C08.22 "TA1 protein-like" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
TAIR|locus:2079676 AT3G07340 "AT3G07340" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
UNIPROTKB|Q5VR96 P0038C05.31-1 "Os06g0275600 protein" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
UNIPROTKB|Q84QW1 OJ1191_A10.109 "BHLH transcription factor(GBOF-1)-like" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms
TAIR|locus:2095198 AT3G23690 "AT3G23690" [Arabidopsis thaliana (taxid:3702)] Back     alignment and assigned GO terms
UNIPROTKB|Q5N802 P0004D12.24 "BHLH transcription factor" [Oryza sativa Japonica Group (taxid:39947)] Back     alignment and assigned GO terms

Prediction of Enzyme Commission (EC) Number

EC Number Prediction by Annotation Transfer from SWISS-PROT Entries ?

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

EC Number Prediction by 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 ?

Fail to connect to STRING server


Conserved Domains and Related Protein Families

Conserved Domains Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query171
smart0035353 smart00353, HLH, helix loop helix domain 5e-11
cd0008360 cd00083, HLH, Helix-loop-helix domain, found in sp 5e-09
pfam0001052 pfam00010, HLH, Helix-loop-helix DNA-binding domai 3e-08
>gnl|CDD|197674 smart00353, HLH, helix loop helix domain Back     alignment and domain information
 Score = 54.9 bits (133), Expect = 5e-11
 Identities = 21/52 (40%), Positives = 31/52 (59%), Gaps = 2/52 (3%)

Query: 54  SLAERARREKISERMKILQDLVPGC--NKVIGKALVLDEIINYIQSLQRQVE 103
           +  ER RR KI+E    L+ L+P    NK + KA +L   I YI+SLQ +++
Sbjct: 1   NARERRRRRKINEAFDELRSLLPTLPKNKKLSKAEILRLAIEYIKSLQEELQ 52


Length = 53

>gnl|CDD|238036 cd00083, HLH, Helix-loop-helix domain, found in specific DNA- binding proteins that act as transcription factors; 60-100 amino acids long Back     alignment and domain information
>gnl|CDD|215654 pfam00010, HLH, Helix-loop-helix DNA-binding domain Back     alignment and domain information

Conserved Domains Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query 171
cd0008360 HLH Helix-loop-helix domain, found in specific DNA 99.54
PF0001055 HLH: Helix-loop-helix DNA-binding domain only nucl 99.51
KOG1318411 consensus Helix loop helix transcription factor EB 99.47
smart0035353 HLH helix loop helix domain. 99.47
KOG1319229 consensus bHLHZip transcription factor BIGMAX [Tra 99.34
KOG4304250 consensus Transcriptional repressors of the hairy/ 98.96
KOG3561 803 consensus Aryl-hydrocarbon receptor nuclear transl 98.7
KOG2483232 consensus Upstream transcription factor 2/L-myc-2 98.69
KOG2588 953 consensus Predicted DNA-binding protein [Transcrip 98.58
PLN0321793 transcription factor ATBS1; Provisional 98.36
KOG3960284 consensus Myogenic helix-loop-helix transcription 98.13
KOG0561 373 consensus bHLH transcription factor [Transcription 98.0
KOG4029228 consensus Transcription factor HAND2/Transcription 97.81
KOG3582856 consensus Mlx interactors and related transcriptio 97.62
KOG3910632 consensus Helix loop helix transcription factor [T 97.04
KOG4447173 consensus Transcription factor TWIST [Transcriptio 95.22
KOG3559 598 consensus Transcriptional regulator SIM1 [Transcri 92.11
KOG3898254 consensus Transcription factor NeuroD and related 91.88
KOG3558 768 consensus Hypoxia-inducible factor 1/Neuronal PAS 91.08
KOG3560 712 consensus Aryl-hydrocarbon receptor [Transcription 87.68
KOG4395285 consensus Transcription factor Atonal, contains HT 87.43
PF09849 247 DUF2076: Uncharacterized protein conserved in bact 83.65
>cd00083 HLH Helix-loop-helix domain, found in specific DNA- binding proteins that act as transcription factors; 60-100 amino acids long Back     alignment and domain information
Probab=99.54  E-value=1.1e-14  Score=96.08  Aligned_cols=55  Identities=36%  Similarity=0.639  Sum_probs=49.3

Q ss_pred             cCccccHHHHHHHHHHHHHHHHHhhcCCCC--CcCcchhhhHHHHHHHHHHHHHHHH
Q 030782           49 ATDSHSLAERARREKISERMKILQDLVPGC--NKVIGKALVLDEIINYIQSLQRQVE  103 (171)
Q Consensus        49 ~~~~h~~~ER~RR~~In~~~~~L~~lvP~~--~k~~~KasiL~~aI~YIk~Lq~~v~  103 (171)
                      .+..|+..||+||++||++|..|+.+||..  ...++|++||+.||+||++|+.+++
T Consensus         4 ~r~~~~~~Er~RR~~~n~~~~~L~~llp~~~~~~k~~k~~iL~~a~~yI~~L~~~~~   60 (60)
T cd00083           4 RREAHNLRERRRRERINDAFDELRSLLPTLPPSKKLSKAEILRKAVDYIKSLQELLQ   60 (60)
T ss_pred             HHHHHhHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHHHHhC
Confidence            456799999999999999999999999998  2445999999999999999998763



A DNA-binding basic region is followed by two alpha-helices separated by a variable loop region; HLH forms homo- and heterodimers, dimerization creates a parallel, left-handed, four helix bundle; the basic region N-terminal to the first amphipathic helix mediates high-affinity DNA-binding; there are several groups of HLH proteins: those (E12/E47) which bind specific hexanucleotide sequences such as E-box (5-CANNTG-3) or StRE 5-ATCACCCCAC-3), those lacking the basic domain (Emc, Id) function as negative regulators since they fail to bind DNA, those (hairy, E(spl), deadpan) which repress transcription although they can bind specific hexanucleotide sequences such as N-box (5-CACGc/aG-3), those which have a COE domain (Collier/Olf-1/EBF) which is involved in both in dimerization and in DNA binding, and those which bind pentanucleotides ACGTG or GCGTG and

>PF00010 HLH: Helix-loop-helix DNA-binding domain only nuclear translocator protein (Arnt) Back     alignment and domain information
>KOG1318 consensus Helix loop helix transcription factor EB [Transcription] Back     alignment and domain information
>smart00353 HLH helix loop helix domain Back     alignment and domain information
>KOG1319 consensus bHLHZip transcription factor BIGMAX [Transcription] Back     alignment and domain information
>KOG4304 consensus Transcriptional repressors of the hairy/E(spl) family (contains HLH) [Transcription] Back     alignment and domain information
>KOG3561 consensus Aryl-hydrocarbon receptor nuclear translocator [Transcription] Back     alignment and domain information
>KOG2483 consensus Upstream transcription factor 2/L-myc-2 protein [Transcription] Back     alignment and domain information
>KOG2588 consensus Predicted DNA-binding protein [Transcription] Back     alignment and domain information
>PLN03217 transcription factor ATBS1; Provisional Back     alignment and domain information
>KOG3960 consensus Myogenic helix-loop-helix transcription factor [Transcription] Back     alignment and domain information
>KOG0561 consensus bHLH transcription factor [Transcription] Back     alignment and domain information
>KOG4029 consensus Transcription factor HAND2/Transcription factor TAL1/TAL2/LYL1 [Transcription] Back     alignment and domain information
>KOG3582 consensus Mlx interactors and related transcription factors [Transcription] Back     alignment and domain information
>KOG3910 consensus Helix loop helix transcription factor [Transcription] Back     alignment and domain information
>KOG4447 consensus Transcription factor TWIST [Transcription] Back     alignment and domain information
>KOG3559 consensus Transcriptional regulator SIM1 [Transcription] Back     alignment and domain information
>KOG3898 consensus Transcription factor NeuroD and related HTH proteins [Transcription] Back     alignment and domain information
>KOG3558 consensus Hypoxia-inducible factor 1/Neuronal PAS domain protein NPAS1 [Signal transduction mechanisms; Transcription] Back     alignment and domain information
>KOG3560 consensus Aryl-hydrocarbon receptor [Transcription] Back     alignment and domain information
>KOG4395 consensus Transcription factor Atonal, contains HTH domain [Transcription] Back     alignment and domain information
>PF09849 DUF2076: Uncharacterized protein conserved in bacteria (DUF2076); InterPro: IPR018648 This family of hypothetical prokaryotic proteins has no known function but includes putative perimplasmic ligand-binding sensor proteins Back     alignment and domain information

Homologous Structure Templates

Structure Templates Detected by BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query171
4ati_A118 Mitf:m-Box Complex Length = 118 4e-04
>pdb|4ATI|A Chain A, Mitf:m-Box Complex Length = 118 Back     alignment and structure

Iteration: 1

Score = 40.4 bits (93), Expect = 4e-04, Method: Compositional matrix adjust. Identities = 29/84 (34%), Positives = 43/84 (51%), Gaps = 9/84 (10%) Query: 44 ARRGQATDSHSLAERARREKISERMKILQDLVPGCNKV---IGKALVLDEIINYIQSLQR 100 A+ Q D+H+L ER RR I++R+K L L+P N K +L ++YI+ LQR Sbjct: 22 AKERQKKDNHNLIERRRRFNINDRIKELGTLIPKSNDPDMRWNKGTILKASVDYIRKLQR 81 Query: 101 Q------VEFLSMKLEAVNSRMNL 118 + +E KLE N + L Sbjct: 82 EQQRAKDLENRQKKLEHANRHLLL 105

Structure Templates Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query171
1am9_A82 Srebp-1A, protein (sterol regulatory element bindi 1e-19
1an4_A65 Protein (upstream stimulatory factor); protein-DNA 9e-10
1nkp_B83 MAX protein, MYC proto-oncogene protein; transcrip 2e-08
1hlo_A80 Protein (transcription factor MAX); transcriptiona 2e-08
1nkp_A88 C-MYC, MYC proto-oncogene protein; transcription, 9e-08
1vt4_I 1221 APAF-1 related killer DARK; drosophila apoptosome, 8e-07
4f3l_A 361 Mclock, circadian locomoter output cycles protein 4e-06
1a0a_A63 BHLH, protein (phosphate system positive regulator 8e-05
4f3l_B 387 BMAL1B; BHLH, PAS, circadian rhythm proteins, tran 2e-04
>1am9_A Srebp-1A, protein (sterol regulatory element binding protein 1A); basic-helix-loop- helix-leucine zipper, transcription factor; HET: DNA; 2.30A {Homo sapiens} SCOP: a.38.1.1 PDB: 1ukl_C Length = 82 Back     alignment and structure
 Score = 77.4 bits (191), Expect = 1e-19
 Identities = 20/73 (27%), Positives = 41/73 (56%)

Query: 45  RRGQATDSHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEF 104
            RG+   +H+  E+  R  I++++  L+DLV G    + K+ VL + I+YI+ LQ   + 
Sbjct: 2   SRGEKRTAHNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQK 61

Query: 105 LSMKLEAVNSRMN 117
           L  +  ++ + ++
Sbjct: 62  LKQENLSLRTAVH 74


>1an4_A Protein (upstream stimulatory factor); protein-DNA complex, double helix, overhanging base, transcription/DNA complex; HET: DNA; 2.90A {Homo sapiens} SCOP: a.38.1.1 Length = 65 Back     alignment and structure
>1nkp_B MAX protein, MYC proto-oncogene protein; transcription, DNA, BHLHZ, heterodimer, transcription/DNA complex; 1.80A {Homo sapiens} SCOP: a.38.1.1 PDB: 1an2_A* 1r05_A 1nlw_B Length = 83 Back     alignment and structure
>1hlo_A Protein (transcription factor MAX); transcriptional regulation, DNA binding, complex (transcription factor MAX/DNA), transcription/DNA complex; HET: DNA; 2.80A {Homo sapiens} SCOP: a.38.1.1 Length = 80 Back     alignment and structure
>1nkp_A C-MYC, MYC proto-oncogene protein; transcription, DNA, BHLHZ, heterodimer, transcription/DNA complex; 1.80A {Homo sapiens} SCOP: a.38.1.1 Length = 88 Back     alignment and structure
>1vt4_I APAF-1 related killer DARK; drosophila apoptosome, apoptosis, programmed cell death; HET: DTP; 6.90A {Drosophila melanogaster} PDB: 3iz8_A* Length = 1221 Back     alignment and structure
>4f3l_A Mclock, circadian locomoter output cycles protein kaput; BHLH, PAS, circadian rhythm proteins, transcription-activato; 2.27A {Mus musculus} Length = 361 Back     alignment and structure
>1a0a_A BHLH, protein (phosphate system positive regulatory protein PHO4); transcription factor, basic helix loop helix; HET: DNA; 2.80A {Saccharomyces cerevisiae} SCOP: a.38.1.1 Length = 63 Back     alignment and structure
>4f3l_B BMAL1B; BHLH, PAS, circadian rhythm proteins, transcription-activato; 2.27A {Mus musculus} Length = 387 Back     alignment and structure

Structure Templates Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query171
1am9_A82 Srebp-1A, protein (sterol regulatory element bindi 99.78
4ati_A118 MITF, microphthalmia-associated transcription fact 99.74
4h10_B71 Circadian locomoter output cycles protein kaput; B 99.7
1a0a_A63 BHLH, protein (phosphate system positive regulator 99.69
1an4_A65 Protein (upstream stimulatory factor); protein-DNA 99.68
1hlo_A80 Protein (transcription factor MAX); transcriptiona 99.68
1nkp_B83 MAX protein, MYC proto-oncogene protein; transcrip 99.67
1nkp_A88 C-MYC, MYC proto-oncogene protein; transcription, 99.64
4h10_A73 ARYL hydrocarbon receptor nuclear translocator-LI 99.62
1nlw_A80 MAD protein, MAX dimerizer; transcription factor, 99.6
3u5v_A76 Protein MAX, transcription factor E2-alpha chimer; 99.57
1mdy_A68 Protein (MYOD BHLH domain); protein-DNA complex, t 99.32
2ql2_B60 Neurod1, neurogenic differentiation factor 1; basi 99.28
4f3l_A 361 Mclock, circadian locomoter output cycles protein 99.17
4ath_A83 MITF, microphthalmia-associated transcription fact 99.16
4f3l_B 387 BMAL1B; BHLH, PAS, circadian rhythm proteins, tran 99.07
2lfh_A68 DNA-binding protein inhibitor ID-3; structural gen 98.91
4aya_A97 DNA-binding protein inhibitor ID-2; cell cycle; 2. 98.54
>1am9_A Srebp-1A, protein (sterol regulatory element binding protein 1A); basic-helix-loop- helix-leucine zipper, transcription factor; HET: DNA; 2.30A {Homo sapiens} SCOP: a.38.1.1 PDB: 1ukl_C Back     alignment and structure
Probab=99.78  E-value=1e-19  Score=128.44  Aligned_cols=69  Identities=26%  Similarity=0.403  Sum_probs=62.6

Q ss_pred             CcCccccHHHHHHHHHHHHHHHHHhhcCCCCCcCcchhhhHHHHHHHHHHHHHHHHHHHHHHHHHhccc
Q 030782           48 QATDSHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRM  116 (171)
Q Consensus        48 ~~~~~h~~~ER~RR~~In~~~~~L~~lvP~~~k~~~KasiL~~aI~YIk~Lq~~v~~L~~~~e~~~~~~  116 (171)
                      ..+.+|+.+||+||++||++|..|++|||++...+|||+||++||+||++|+.+++.|+.+++.|...+
T Consensus         5 ~rr~~H~~~ErrRR~~in~~f~~L~~lvP~~~~k~~Ka~IL~~Ai~YI~~Lq~~~~~L~~e~~~L~~~~   73 (82)
T 1am9_A            5 EKRTAHNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQKLKQENLSLRTAV   73 (82)
T ss_dssp             HHHHHHHHHHHHHHHHHHHHHHHHHHHHTCSSCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_pred             HHHHhhhhHHHHHHHHHHHHHHHHHHhccCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Confidence            345689999999999999999999999999844459999999999999999999999999998887655



>4ati_A MITF, microphthalmia-associated transcription factor; DNA-binding protein-DNA complex, melanoma; 2.60A {Mus musculus} PDB: 4atk_A Back     alignment and structure
>4h10_B Circadian locomoter output cycles protein kaput; BHLH, circadian transcription, transcription-DNA complex; 2.40A {Homo sapiens} Back     alignment and structure
>1a0a_A BHLH, protein (phosphate system positive regulatory protein PHO4); transcription factor, basic helix loop helix; HET: DNA; 2.80A {Saccharomyces cerevisiae} SCOP: a.38.1.1 Back     alignment and structure
>1an4_A Protein (upstream stimulatory factor); protein-DNA complex, double helix, overhanging base, transcription/DNA complex; HET: DNA; 2.90A {Homo sapiens} SCOP: a.38.1.1 Back     alignment and structure
>1hlo_A Protein (transcription factor MAX); transcriptional regulation, DNA binding, complex (transcription factor MAX/DNA), transcription/DNA complex; HET: DNA; 2.80A {Homo sapiens} SCOP: a.38.1.1 Back     alignment and structure
>1nkp_B MAX protein, MYC proto-oncogene protein; transcription, DNA, BHLHZ, heterodimer, transcription/DNA complex; 1.80A {Homo sapiens} SCOP: a.38.1.1 PDB: 1an2_A* 1r05_A 1nlw_B Back     alignment and structure
>1nkp_A C-MYC, MYC proto-oncogene protein; transcription, DNA, BHLHZ, heterodimer, transcription/DNA complex; 1.80A {Homo sapiens} SCOP: a.38.1.1 Back     alignment and structure
>4h10_A ARYL hydrocarbon receptor nuclear translocator-LI 1; BHLH, circadian transcription, transcription-DNA complex; 2.40A {Homo sapiens} Back     alignment and structure
>1nlw_A MAD protein, MAX dimerizer; transcription factor, DNA, BHLHZ, transcription/DNA complex; 2.00A {Homo sapiens} SCOP: a.38.1.1 Back     alignment and structure
>3u5v_A Protein MAX, transcription factor E2-alpha chimer; basic helix-loop-helix (BHLH); 1.70A {Mus musculus} PDB: 2ql2_A* Back     alignment and structure
>1mdy_A Protein (MYOD BHLH domain); protein-DNA complex, transcription/DNA complex; HET: DNA; 2.80A {Mus musculus} SCOP: a.38.1.1 PDB: 1mdy_B* Back     alignment and structure
>2ql2_B Neurod1, neurogenic differentiation factor 1; basic-helix-loop-helix; HET: DNA; 2.50A {Mus musculus} Back     alignment and structure
>4f3l_A Mclock, circadian locomoter output cycles protein kaput; BHLH, PAS, circadian rhythm proteins, transcription-activato; 2.27A {Mus musculus} Back     alignment and structure
>4ath_A MITF, microphthalmia-associated transcription factor; DNA binding protein, melanoma; HET: MSE; 1.95A {Mus musculus} Back     alignment and structure
>4f3l_B BMAL1B; BHLH, PAS, circadian rhythm proteins, transcription-activato; 2.27A {Mus musculus} Back     alignment and structure
>2lfh_A DNA-binding protein inhibitor ID-3; structural genomics, northeast structural genomics consortiu PSI-biology, protein structure initiative; NMR {Homo sapiens} Back     alignment and structure
>4aya_A DNA-binding protein inhibitor ID-2; cell cycle; 2.10A {Homo sapiens} Back     alignment and structure

Homologous Structure Domains

Structure Domains Detected by RPS-BLAST ?

ID ?Alignment Graph ?Length ? Definition ? E-value ?
Query 171
d1uklc_61 a.38.1.1 (C:) SREBP-2 {Human (Homo sapiens) [TaxId 3e-16
d1am9a_80 a.38.1.1 (A:) SREBP-1a {Human (Homo sapiens) [TaxI 4e-14
d1nkpa_88 a.38.1.1 (A:) Myc proto-oncogene protein {Human (H 1e-13
d1a0aa_63 a.38.1.1 (A:) Pho4 B/HLH domain {Baker's yeast (Sa 1e-12
d1mdya_68 a.38.1.1 (A:) Myod B/HLH domain {Mouse (Mus muscul 8e-12
d1nkpb_83 a.38.1.1 (B:) Max protein {Human (Homo sapiens) [T 3e-11
d1an4a_65 a.38.1.1 (A:) Usf B/HLH domain {Human (Homo sapien 1e-10
d1nlwa_79 a.38.1.1 (A:) Mad protein {Human (Homo sapiens) [T 3e-10
>d1uklc_ a.38.1.1 (C:) SREBP-2 {Human (Homo sapiens) [TaxId: 9606]} Length = 61 Back     information, alignment and structure

class: All alpha proteins
fold: HLH-like
superfamily: HLH, helix-loop-helix DNA-binding domain
family: HLH, helix-loop-helix DNA-binding domain
domain: SREBP-2
species: Human (Homo sapiens) [TaxId: 9606]
 Score = 67.1 bits (164), Expect = 3e-16
 Identities = 16/57 (28%), Positives = 30/57 (52%)

Query: 61  REKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRMN 117
           R  I++++  L+DLV G +  + K+ VL + I+YI+ LQ+    L  +   +     
Sbjct: 1   RSSINDKIIELKDLVMGTDAKMHKSGVLRKAIDYIKYLQQVNHKLRQENMVLKLANQ 57


>d1am9a_ a.38.1.1 (A:) SREBP-1a {Human (Homo sapiens) [TaxId: 9606]} Length = 80 Back     information, alignment and structure
>d1nkpa_ a.38.1.1 (A:) Myc proto-oncogene protein {Human (Homo sapiens) [TaxId: 9606]} Length = 88 Back     information, alignment and structure
>d1a0aa_ a.38.1.1 (A:) Pho4 B/HLH domain {Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932]} Length = 63 Back     information, alignment and structure
>d1mdya_ a.38.1.1 (A:) Myod B/HLH domain {Mouse (Mus musculus) [TaxId: 10090]} Length = 68 Back     information, alignment and structure
>d1nkpb_ a.38.1.1 (B:) Max protein {Human (Homo sapiens) [TaxId: 9606]} Length = 83 Back     information, alignment and structure
>d1an4a_ a.38.1.1 (A:) Usf B/HLH domain {Human (Homo sapiens) [TaxId: 9606]} Length = 65 Back     information, alignment and structure
>d1nlwa_ a.38.1.1 (A:) Mad protein {Human (Homo sapiens) [TaxId: 9606]} Length = 79 Back     information, alignment and structure

Homologous Domains Detected by HHsearch ?

ID ?Alignment Graph ?Length ? Definition ? Probability ?
Query171
d1am9a_80 SREBP-1a {Human (Homo sapiens) [TaxId: 9606]} 99.73
d1nlwa_79 Mad protein {Human (Homo sapiens) [TaxId: 9606]} 99.67
d1nkpb_83 Max protein {Human (Homo sapiens) [TaxId: 9606]} 99.64
d1nkpa_88 Myc proto-oncogene protein {Human (Homo sapiens) [ 99.64
d1a0aa_63 Pho4 B/HLH domain {Baker's yeast (Saccharomyces ce 99.63
d1mdya_68 Myod B/HLH domain {Mouse (Mus musculus) [TaxId: 10 99.61
d1uklc_61 SREBP-2 {Human (Homo sapiens) [TaxId: 9606]} 99.59
d1an4a_65 Usf B/HLH domain {Human (Homo sapiens) [TaxId: 960 99.58
>d1am9a_ a.38.1.1 (A:) SREBP-1a {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
class: All alpha proteins
fold: HLH-like
superfamily: HLH, helix-loop-helix DNA-binding domain
family: HLH, helix-loop-helix DNA-binding domain
domain: SREBP-1a
species: Human (Homo sapiens) [TaxId: 9606]
Probab=99.73  E-value=1.2e-18  Score=120.48  Aligned_cols=68  Identities=26%  Similarity=0.400  Sum_probs=61.5

Q ss_pred             cCccccHHHHHHHHHHHHHHHHHhhcCCCCCcCcchhhhHHHHHHHHHHHHHHHHHHHHHHHHHhccc
Q 030782           49 ATDSHSLAERARREKISERMKILQDLVPGCNKVIGKALVLDEIINYIQSLQRQVEFLSMKLEAVNSRM  116 (171)
Q Consensus        49 ~~~~h~~~ER~RR~~In~~~~~L~~lvP~~~k~~~KasiL~~aI~YIk~Lq~~v~~L~~~~e~~~~~~  116 (171)
                      .+..|+.+||+||++||++|..|++|||++...++|++||..||+||++|+.+++.|..+++.+...+
T Consensus         6 kR~~H~~~Er~RR~~in~~~~~L~~llP~~~~k~~K~~iL~~a~~yI~~L~~~~~~L~~e~~~lk~~~   73 (80)
T d1am9a_           6 KRTAHNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQKLKQENLSLRTAV   73 (80)
T ss_dssp             HHHHHHHHHHHHHHHHHHHHHHHHHHHTCSSCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHHhcCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Confidence            34689999999999999999999999999865569999999999999999999999999888776544



>d1nlwa_ a.38.1.1 (A:) Mad protein {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1nkpb_ a.38.1.1 (B:) Max protein {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1nkpa_ a.38.1.1 (A:) Myc proto-oncogene protein {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1a0aa_ a.38.1.1 (A:) Pho4 B/HLH domain {Baker's yeast (Saccharomyces cerevisiae) [TaxId: 4932]} Back     information, alignment and structure
>d1mdya_ a.38.1.1 (A:) Myod B/HLH domain {Mouse (Mus musculus) [TaxId: 10090]} Back     information, alignment and structure
>d1uklc_ a.38.1.1 (C:) SREBP-2 {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure
>d1an4a_ a.38.1.1 (A:) Usf B/HLH domain {Human (Homo sapiens) [TaxId: 9606]} Back     information, alignment and structure