Citrus Sinensis ID: 038298
Local Sequence Feature Prediction
| Prediction and (Method) | Result |
|---|
Close Homologs for Annotation Transfer
Close Homologs in the Non-Redundant Database Detected by BLAST 
Original result of BLAST against Nonredundant Database
GI ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
Q cover ![]() |
H cover ![]() |
Identity ![]() |
E-value ![]() |
| Query | 259 | ||||||
| 359497334 | 196 | PREDICTED: transcription factor bHLH25-l | 0.640 | 0.846 | 0.583 | 5e-49 | |
| 296083527 | 177 | unnamed protein product [Vitis vinifera] | 0.633 | 0.926 | 0.584 | 2e-48 | |
| 449438279 | 340 | PREDICTED: transcription factor bHLH25-l | 0.942 | 0.717 | 0.431 | 2e-47 | |
| 359480522 | 338 | PREDICTED: transcription factor bHLH25-l | 0.667 | 0.511 | 0.541 | 3e-47 | |
| 225438169 | 358 | PREDICTED: transcription factor bHLH25-l | 0.660 | 0.477 | 0.528 | 1e-46 | |
| 296088946 | 334 | unnamed protein product [Vitis vinifera] | 0.660 | 0.511 | 0.528 | 2e-46 | |
| 359480528 | 365 | PREDICTED: transcription factor bHLH25-l | 0.776 | 0.550 | 0.468 | 4e-45 | |
| 147818973 | 365 | hypothetical protein VITISV_026466 [Viti | 0.776 | 0.550 | 0.468 | 6e-45 | |
| 359475553 | 331 | PREDICTED: transcription factor bHLH25-l | 0.606 | 0.474 | 0.539 | 6e-45 | |
| 358248228 | 347 | transcription factor bHLH25-like [Glycin | 0.853 | 0.636 | 0.444 | 6e-45 |
| >gi|359497334|ref|XP_002263046.2| PREDICTED: transcription factor bHLH25-like, partial [Vitis vinifera] | Back alignment and taxonomy information |
|---|
Score = 200 bits (509), Expect = 5e-49, Method: Compositional matrix adjust.
Identities = 105/180 (58%), Positives = 131/180 (72%), Gaps = 14/180 (7%)
Query: 90 SRSPLQAQEHVIAERKRREKMNQQFIALSAVIPGIKQMNKASVLEGTIKHLKELQERGKK 149
+R+PL Q+HVIAERKRREK+ Q+FIALSA++PG+K+ +KASVL IK+LK+LQER K
Sbjct: 18 TRNPLNNQDHVIAERKRREKLTQRFIALSAIVPGLKKTDKASVLGDAIKYLKQLQERVKT 77
Query: 150 LVEHTKRKAPESVVSVKRSQ-------------QTLPDIVVRVSDNNVLIRIHCEKQNIG 196
L E T +K ESVVSVK+S+ Q LP+I RVS+ +VLIRIHC KQ G
Sbjct: 78 LEEQTTKKTVESVVSVKKSKLSDNDQNPDSFSDQPLPEIEARVSNKDVLIRIHCVKQK-G 136
Query: 197 FISNIVSEIEKLHLVVINSRTIPFGNYALDITVVAQMEVEFCLTVKELVKNLRLALSKFI 256
F I+ EIEKL L V+NS +PFG+Y +DITVVAQME EFC T K+LV+NLRLA F+
Sbjct: 137 FAVRILGEIEKLRLRVVNSSVLPFGDYIMDITVVAQMEDEFCTTAKDLVRNLRLAFQHFM 196
|
Source: Vitis vinifera Species: Vitis vinifera Genus: Vitis Family: Vitaceae Order: Vitales Class: Phylum: Streptophyta Superkingdom: Eukaryota |
| >gi|296083527|emb|CBI23517.3| unnamed protein product [Vitis vinifera] | Back alignment and taxonomy information |
|---|
| >gi|449438279|ref|XP_004136916.1| PREDICTED: transcription factor bHLH25-like [Cucumis sativus] gi|449511253|ref|XP_004163905.1| PREDICTED: transcription factor bHLH25-like [Cucumis sativus] | Back alignment and taxonomy information |
|---|
| >gi|359480522|ref|XP_002262815.2| PREDICTED: transcription factor bHLH25-like [Vitis vinifera] gi|297735853|emb|CBI18607.3| unnamed protein product [Vitis vinifera] | Back alignment and taxonomy information |
|---|
| >gi|225438169|ref|XP_002262764.1| PREDICTED: transcription factor bHLH25-like [Vitis vinifera] | Back alignment and taxonomy information |
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| >gi|296088946|emb|CBI38512.3| unnamed protein product [Vitis vinifera] | Back alignment and taxonomy information |
|---|
| >gi|359480528|ref|XP_002270448.2| PREDICTED: transcription factor bHLH25-like [Vitis vinifera] | Back alignment and taxonomy information |
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| >gi|147818973|emb|CAN67117.1| hypothetical protein VITISV_026466 [Vitis vinifera] | Back alignment and taxonomy information |
|---|
| >gi|359475553|ref|XP_002268443.2| PREDICTED: transcription factor bHLH25-like [Vitis vinifera] gi|147839680|emb|CAN75020.1| hypothetical protein VITISV_039940 [Vitis vinifera] | Back alignment and taxonomy information |
|---|
| >gi|358248228|ref|NP_001239843.1| transcription factor bHLH25-like [Glycine max] gi|3399777|gb|AAC32828.1| symbiotic ammonium transporter [Glycine max] | Back alignment and taxonomy information |
|---|
Prediction of Gene Ontology (GO) Terms
Close Homologs with Gene Ontology terms Detected by BLAST 
Original result of BLAST against Gene Ontology (AMIGO)
ID ![]() |
Alignment graph ![]() |
Length ![]() |
Definition ![]() |
Q cover ![]() |
H cover ![]() |
Identity ![]() |
E-value ![]() |
| Query | 259 | ||||||
| TAIR|locus:2062235 | 320 | NAI1 "AT2G22770" [Arabidopsis | 0.594 | 0.481 | 0.393 | 1.8e-42 | |
| TAIR|locus:2062225 | 305 | AT2G22750 "AT2G22750" [Arabido | 0.575 | 0.488 | 0.386 | 3.5e-38 | |
| UNIPROTKB|Q75GI1 | 359 | OSJNBa0013A09.16 "Putative tra | 0.332 | 0.239 | 0.534 | 4.8e-35 | |
| TAIR|locus:2062230 | 295 | AT2G22760 "AT2G22760" [Arabido | 0.316 | 0.277 | 0.488 | 5e-35 | |
| UNIPROTKB|Q84R60 | 353 | OSJNBb0113I20.8 "Putative ammo | 0.320 | 0.235 | 0.482 | 4.6e-26 | |
| UNIPROTKB|Q84R79 | 301 | OSJNBb0113I20.1 "Putative ammo | 0.528 | 0.455 | 0.418 | 1.4e-23 | |
| UNIPROTKB|Q2QLR0 | 338 | LOC_Os12g43620 "Helix-loop-hel | 0.575 | 0.440 | 0.380 | 2.9e-23 | |
| TAIR|locus:2137574 | 328 | AT4G37850 "AT4G37850" [Arabido | 0.413 | 0.326 | 0.478 | 1.2e-19 | |
| UNIPROTKB|Q8LSP3 | 451 | OJ1203D03.3 "Helix-loop-helix | 0.328 | 0.188 | 0.470 | 9.3e-16 | |
| TAIR|locus:2118524 | 518 | TT8 "AT4G09820" [Arabidopsis t | 0.776 | 0.388 | 0.280 | 4.2e-14 |
| TAIR|locus:2062235 NAI1 "AT2G22770" [Arabidopsis thaliana (taxid:3702)] | Back alignment and assigned GO terms |
|---|
Score = 253 (94.1 bits), Expect = 1.8e-42, Sum P(2) = 1.8e-42
Identities = 65/165 (39%), Positives = 98/165 (59%)
Query: 12 QYQGNSQSNSTTHGSMPFSGLISFQDTDSLASYYSQMSNPNSEYYCTIKSEDKRASDENL 71
Q + N+ NST+ S P S S T + S+ S + N ++ ++ + D+ +
Sbjct: 55 QMKTNNNMNSTS--SSPSSSSSSGSRTSQVISFGSPDTKTNP-VETSLNFSNQVSMDQKV 111
Query: 72 MAMKTRIVNKPGQGNRVASRSPLQAQEHVIAERKRREKMNQQFIALSAVIPGIKQMNKAS 131
+ + VN G+ R P +EHV+AERKRR+K+N++ IALSA++PG+K+ +KA+
Sbjct: 112 GSKRKDCVNNGGR------REPHLLKEHVLAERKRRQKLNERLIALSALLPGLKKTDKAT 165
Query: 132 VLEGTIKHLKELQERGKKLVEH--TKRKAPESVVSVKRSQQTLPD 174
VLE IKHLK+LQER KKL E +K +S++ VKRSQ L D
Sbjct: 166 VLEDAIKHLKQLQERVKKLEEERVVTKKMDQSIILVKRSQVYLDD 210
|
|
| TAIR|locus:2062225 AT2G22750 "AT2G22750" [Arabidopsis thaliana (taxid:3702)] | Back alignment and assigned GO terms |
|---|
| UNIPROTKB|Q75GI1 OSJNBa0013A09.16 "Putative transcription factor" [Oryza sativa Japonica Group (taxid:39947)] | Back alignment and assigned GO terms |
|---|
| TAIR|locus:2062230 AT2G22760 "AT2G22760" [Arabidopsis thaliana (taxid:3702)] | Back alignment and assigned GO terms |
|---|
| UNIPROTKB|Q84R60 OSJNBb0113I20.8 "Putative ammonium transporter" [Oryza sativa Japonica Group (taxid:39947)] | Back alignment and assigned GO terms |
|---|
| UNIPROTKB|Q84R79 OSJNBb0113I20.1 "Putative ammonium transporter" [Oryza sativa Japonica Group (taxid:39947)] | Back alignment and assigned GO terms |
|---|
| UNIPROTKB|Q2QLR0 LOC_Os12g43620 "Helix-loop-helix DNA-binding domain containing protein" [Oryza sativa Japonica Group (taxid:39947)] | Back alignment and assigned GO terms |
|---|
| TAIR|locus:2137574 AT4G37850 "AT4G37850" [Arabidopsis thaliana (taxid:3702)] | Back alignment and assigned GO terms |
|---|
| UNIPROTKB|Q8LSP3 OJ1203D03.3 "Helix-loop-helix DNA-binding domain containing protein" [Oryza sativa Japonica Group (taxid:39947)] | Back alignment and assigned GO terms |
|---|
| TAIR|locus:2118524 TT8 "AT4G09820" [Arabidopsis thaliana (taxid:3702)] | Back alignment and assigned GO terms |
|---|
Prediction of Enzyme Commission (EC) Number
EC Number Prediction by Ezypred Server 
Original result from Ezypred Server
Fail to connect to Ezypred Server
Prediction of Functionally Associated Proteins
Functionally Associated Proteins Detected by STRING 
Original result from the STRING server
Fail to connect to STRING server
Conserved Domains and Related Protein Families
Conserved Domains Detected by RPS-BLAST 
Original result of RPS-BLAST against CDD database part I
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
E-value ![]() |
| Query | 259 | |||
| smart00353 | 53 | smart00353, HLH, helix loop helix domain | 1e-09 | |
| cd00083 | 60 | cd00083, HLH, Helix-loop-helix domain, found in sp | 2e-09 | |
| pfam00010 | 52 | pfam00010, HLH, Helix-loop-helix DNA-binding domai | 1e-07 |
| >gnl|CDD|197674 smart00353, HLH, helix loop helix domain | Back alignment and domain information |
|---|
Score = 52.6 bits (127), Expect = 1e-09
Identities = 19/52 (36%), Positives = 33/52 (63%), Gaps = 3/52 (5%)
Query: 101 IAERKRREKMNQQFIALSAVIPG---IKQMNKASVLEGTIKHLKELQERGKK 149
ER+RR K+N+ F L +++P K+++KA +L I+++K LQE +K
Sbjct: 2 ARERRRRRKINEAFDELRSLLPTLPKNKKLSKAEILRLAIEYIKSLQEELQK 53
|
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 
Original result of HHsearch against CDD database
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
Probability ![]() |
| Query | 259 | |||
| cd00083 | 60 | HLH Helix-loop-helix domain, found in specific DNA | 99.42 | |
| PF00010 | 55 | HLH: Helix-loop-helix DNA-binding domain only nucl | 99.4 | |
| smart00353 | 53 | HLH helix loop helix domain. | 99.35 | |
| KOG1318 | 411 | consensus Helix loop helix transcription factor EB | 98.94 | |
| KOG1319 | 229 | consensus bHLHZip transcription factor BIGMAX [Tra | 98.6 | |
| cd04897 | 75 | ACT_ACR_3 ACT domain-containing protein which is c | 98.57 | |
| cd04895 | 72 | ACT_ACR_1 ACT domain-containing protein which is c | 98.43 | |
| cd04896 | 75 | ACT_ACR-like_3 ACT domain-containing protein which | 98.39 | |
| cd04927 | 76 | ACT_ACR-like_2 Second ACT domain, of a novel type | 98.3 | |
| cd04900 | 73 | ACT_UUR-like_1 ACT domain family, ACT_UUR-like_1, | 98.27 | |
| cd04925 | 74 | ACT_ACR_2 ACT domain-containing protein which is c | 98.22 | |
| KOG3561 | 803 | consensus Aryl-hydrocarbon receptor nuclear transl | 98.2 | |
| KOG4304 | 250 | consensus Transcriptional repressors of the hairy/ | 98.2 | |
| KOG2483 | 232 | consensus Upstream transcription factor 2/L-myc-2 | 98.14 | |
| cd04899 | 70 | ACT_ACR-UUR-like_2 C-terminal ACT domains of the b | 97.94 | |
| KOG0561 | 373 | consensus bHLH transcription factor [Transcription | 97.75 | |
| KOG2588 | 953 | consensus Predicted DNA-binding protein [Transcrip | 97.65 | |
| PRK05007 | 884 | PII uridylyl-transferase; Provisional | 97.59 | |
| cd04926 | 72 | ACT_ACR_4 C-terminal ACT domain, of a novel type o | 97.55 | |
| KOG4029 | 228 | consensus Transcription factor HAND2/Transcription | 97.46 | |
| cd04873 | 70 | ACT_UUR-ACR-like ACT domains of the bacterial sign | 97.38 | |
| PLN03217 | 93 | transcription factor ATBS1; Provisional | 97.38 | |
| KOG3960 | 284 | consensus Myogenic helix-loop-helix transcription | 97.37 | |
| PRK01759 | 854 | glnD PII uridylyl-transferase; Provisional | 97.33 | |
| PRK00275 | 895 | glnD PII uridylyl-transferase; Provisional | 97.28 | |
| PF13740 | 76 | ACT_6: ACT domain; PDB: 1ZPV_A 3P96_A 1U8S_A. | 97.21 | |
| cd04928 | 68 | ACT_TyrKc Uncharacterized, N-terminal ACT domain o | 97.21 | |
| PRK04374 | 869 | PII uridylyl-transferase; Provisional | 97.16 | |
| PRK05092 | 931 | PII uridylyl-transferase; Provisional | 97.11 | |
| PF01842 | 66 | ACT: ACT domain; InterPro: IPR002912 The ACT domai | 97.03 | |
| PF13291 | 80 | ACT_4: ACT domain; PDB: 2KO1_B 3IBW_A. | 96.83 | |
| TIGR01693 | 850 | UTase_glnD [Protein-PII] uridylyltransferase. This | 96.81 | |
| PRK03381 | 774 | PII uridylyl-transferase; Provisional | 96.78 | |
| cd04893 | 77 | ACT_GcvR_1 ACT domains that comprise the Glycine C | 96.75 | |
| PRK03059 | 856 | PII uridylyl-transferase; Provisional | 96.75 | |
| TIGR01693 | 850 | UTase_glnD [Protein-PII] uridylyltransferase. This | 96.62 | |
| COG2844 | 867 | GlnD UTP:GlnB (protein PII) uridylyltransferase [P | 96.51 | |
| cd04887 | 74 | ACT_MalLac-Enz ACT_MalLac-Enz CD includes the N-te | 96.48 | |
| PRK05007 | 884 | PII uridylyl-transferase; Provisional | 96.47 | |
| PRK01759 | 854 | glnD PII uridylyl-transferase; Provisional | 96.44 | |
| cd04872 | 88 | ACT_1ZPV ACT domain proteins similar to the yet un | 96.41 | |
| PRK03381 | 774 | PII uridylyl-transferase; Provisional | 96.37 | |
| cd04875 | 74 | ACT_F4HF-DF N-terminal ACT domain of formyltetrahy | 96.34 | |
| PRK00194 | 90 | hypothetical protein; Validated | 96.24 | |
| cd04869 | 81 | ACT_GcvR_2 ACT domains that comprise the Glycine C | 96.13 | |
| cd04870 | 75 | ACT_PSP_1 CT domains found N-terminal of phosphose | 95.86 | |
| cd04888 | 76 | ACT_PheB-BS C-terminal ACT domain of a small (~147 | 95.78 | |
| PRK03059 | 856 | PII uridylyl-transferase; Provisional | 95.76 | |
| cd04886 | 73 | ACT_ThrD-II-like C-terminal ACT domain of biodegra | 95.66 | |
| PRK00275 | 895 | glnD PII uridylyl-transferase; Provisional | 95.58 | |
| PRK04435 | 147 | hypothetical protein; Provisional | 95.42 | |
| PRK05092 | 931 | PII uridylyl-transferase; Provisional | 95.37 | |
| cd04880 | 75 | ACT_AAAH-PDT-like ACT domain of the nonheme iron-d | 95.28 | |
| cd04881 | 79 | ACT_HSDH-Hom ACT_HSDH_Hom CD includes the C-termin | 95.1 | |
| cd04894 | 69 | ACT_ACR-like_1 ACT domain-containing protein which | 94.49 | |
| cd04905 | 80 | ACT_CM-PDT C-terminal ACT domain of the bifunction | 94.43 | |
| cd02116 | 60 | ACT ACT domains are commonly involved in specifica | 94.42 | |
| cd04877 | 74 | ACT_TyrR N-terminal ACT domain of the TyrR protein | 94.19 | |
| cd04876 | 71 | ACT_RelA-SpoT ACT domain found C-terminal of the R | 94.18 | |
| PRK08577 | 136 | hypothetical protein; Provisional | 94.11 | |
| cd04884 | 72 | ACT_CBS C-terminal ACT domain of the cystathionine | 93.88 | |
| KOG3910 | 632 | consensus Helix loop helix transcription factor [T | 93.79 | |
| cd04878 | 72 | ACT_AHAS N-terminal ACT domain of the Escherichia | 93.74 | |
| PRK04374 | 869 | PII uridylyl-transferase; Provisional | 93.71 | |
| cd04931 | 90 | ACT_PAH ACT domain of the nonheme iron-dependent a | 93.66 | |
| cd04874 | 72 | ACT_Af1403 N-terminal ACT domain of the yet unchar | 93.51 | |
| KOG4447 | 173 | consensus Transcription factor TWIST [Transcriptio | 92.88 | |
| PRK13011 | 286 | formyltetrahydrofolate deformylase; Reviewed | 92.61 | |
| TIGR00655 | 280 | PurU formyltetrahydrofolate deformylase. This mode | 92.51 | |
| cd04903 | 71 | ACT_LSD C-terminal ACT domain of the L-serine dehy | 92.15 | |
| PRK07334 | 403 | threonine dehydratase; Provisional | 91.91 | |
| cd04909 | 69 | ACT_PDH-BS C-terminal ACT domain of the monofuncti | 91.9 | |
| cd04904 | 74 | ACT_AAAH ACT domain of the nonheme iron-dependent, | 91.85 | |
| KOG3560 | 712 | consensus Aryl-hydrocarbon receptor [Transcription | 91.48 | |
| cd04882 | 65 | ACT_Bt0572_2 C-terminal ACT domain of a novel prot | 91.42 | |
| PRK13010 | 289 | purU formyltetrahydrofolate deformylase; Reviewed | 91.28 | |
| cd04885 | 68 | ACT_ThrD-I Tandem C-terminal ACT domains of threon | 91.16 | |
| COG2844 | 867 | GlnD UTP:GlnB (protein PII) uridylyltransferase [P | 91.08 | |
| cd04879 | 71 | ACT_3PGDH-like ACT_3PGDH-like CD includes the C-te | 90.96 | |
| cd04908 | 66 | ACT_Bt0572_1 N-terminal ACT domain of a novel prot | 90.86 | |
| cd04929 | 74 | ACT_TPH ACT domain of the nonheme iron-dependent a | 90.85 | |
| PRK06027 | 286 | purU formyltetrahydrofolate deformylase; Reviewed | 90.6 | |
| cd04883 | 72 | ACT_AcuB C-terminal ACT domain of the Bacillus sub | 89.61 | |
| KOG3898 | 254 | consensus Transcription factor NeuroD and related | 87.3 | |
| PRK11895 | 161 | ilvH acetolactate synthase 3 regulatory subunit; R | 86.58 | |
| KOG3559 | 598 | consensus Transcriptional regulator SIM1 [Transcri | 86.13 | |
| cd04930 | 115 | ACT_TH ACT domain of the nonheme iron-dependent ar | 85.81 | |
| KOG3558 | 768 | consensus Hypoxia-inducible factor 1/Neuronal PAS | 85.5 | |
| TIGR00119 | 157 | acolac_sm acetolactate synthase, small subunit. ac | 85.15 | |
| PRK11092 | 702 | bifunctional (p)ppGpp synthetase II/ guanosine-3', | 85.0 | |
| PRK11589 | 190 | gcvR glycine cleavage system transcriptional repre | 84.94 | |
| COG4492 | 150 | PheB ACT domain-containing protein [General functi | 84.68 | |
| cd04889 | 56 | ACT_PDH-BS-like C-terminal ACT domain of the monof | 84.52 | |
| PRK10872 | 743 | relA (p)ppGpp synthetase I/GTP pyrophosphokinase; | 83.93 | |
| cd04901 | 69 | ACT_3PGDH C-terminal ACT (regulatory) domain of D- | 83.4 | |
| KOG4395 | 285 | consensus Transcription factor Atonal, contains HT | 83.09 | |
| TIGR00691 | 683 | spoT_relA (p)ppGpp synthetase, RelA/SpoT family. ( | 83.04 | |
| PRK13562 | 84 | acetolactate synthase 1 regulatory subunit; Provis | 81.9 | |
| cd04906 | 85 | ACT_ThrD-I_1 First of two tandem C-terminal ACT do | 80.89 | |
| PRK08198 | 404 | threonine dehydratase; Provisional | 80.66 |
| >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=99.42 E-value=3.1e-13 Score=95.37 Aligned_cols=53 Identities=34% Similarity=0.609 Sum_probs=50.3
Q ss_pred hhhhhhHHHHHHHHHHHHhHHHHhccCCCC---CCCCccchHHHHHHHHHHHHHHH
Q 038298 95 QAQEHVIAERKRREKMNQQFIALSAVIPGI---KQMNKASVLEGTIKHLKELQERG 147 (259)
Q Consensus 95 ~~~~h~~~ER~RR~k~n~~~~~LrslvP~~---~k~dK~siL~~ai~YIk~Lq~~v 147 (259)
.+..|+..||+||++||..|..|+.+||.. .+++|++||..||+||+.|+.++
T Consensus 4 ~r~~~~~~Er~RR~~~n~~~~~L~~llp~~~~~~k~~k~~iL~~a~~yI~~L~~~~ 59 (60)
T cd00083 4 RREAHNLRERRRRERINDAFDELRSLLPTLPPSKKLSKAEILRKAVDYIKSLQELL 59 (60)
T ss_pred HHHHHhHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHHHHh
Confidence 467899999999999999999999999987 89999999999999999999876
|
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 |
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| >smart00353 HLH helix loop helix domain | Back alignment and domain information |
|---|
| >KOG1318 consensus Helix loop helix transcription factor EB [Transcription] | Back alignment and domain information |
|---|
| >KOG1319 consensus bHLHZip transcription factor BIGMAX [Transcription] | Back alignment and domain information |
|---|
| >cd04897 ACT_ACR_3 ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
|---|
| >cd04895 ACT_ACR_1 ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
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| >cd04896 ACT_ACR-like_3 ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
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| >cd04927 ACT_ACR-like_2 Second ACT domain, of a novel type of ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
|---|
| >cd04900 ACT_UUR-like_1 ACT domain family, ACT_UUR-like_1, includes the first of two C-terminal ACT domains of the bacterial signal-transducing uridylyltransferase /uridylyl-removing (UUR) enzyme, GlnD and related domains | Back alignment and domain information |
|---|
| >cd04925 ACT_ACR_2 ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
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| >KOG3561 consensus Aryl-hydrocarbon receptor nuclear translocator [Transcription] | Back alignment and domain information |
|---|
| >KOG4304 consensus Transcriptional repressors of the hairy/E(spl) family (contains HLH) [Transcription] | Back alignment and domain information |
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| >KOG2483 consensus Upstream transcription factor 2/L-myc-2 protein [Transcription] | Back alignment and domain information |
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| >cd04899 ACT_ACR-UUR-like_2 C-terminal ACT domains of the bacterial signal-transducing uridylyltransferase /uridylyl-removing (UUR) enzyme, GlnD and related domains | Back alignment and domain information |
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| >KOG0561 consensus bHLH transcription factor [Transcription] | Back alignment and domain information |
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| >KOG2588 consensus Predicted DNA-binding protein [Transcription] | Back alignment and domain information |
|---|
| >PRK05007 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04926 ACT_ACR_4 C-terminal ACT domain, of a novel type of ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
|---|
| >KOG4029 consensus Transcription factor HAND2/Transcription factor TAL1/TAL2/LYL1 [Transcription] | Back alignment and domain information |
|---|
| >cd04873 ACT_UUR-ACR-like ACT domains of the bacterial signal-transducing uridylyltransferase /uridylyl-removing (UUR) enzyme, GlnD | 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 |
|---|
| >PRK01759 glnD PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >PRK00275 glnD PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >PF13740 ACT_6: ACT domain; PDB: 1ZPV_A 3P96_A 1U8S_A | Back alignment and domain information |
|---|
| >cd04928 ACT_TyrKc Uncharacterized, N-terminal ACT domain of an Arabidopsis/Oryza predicted tyrosine kinase and other related ACT domains | Back alignment and domain information |
|---|
| >PRK04374 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >PRK05092 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >PF01842 ACT: ACT domain; InterPro: IPR002912 The ACT domain is found in a variety of contexts and is proposed to be a conserved regulatory binding fold | Back alignment and domain information |
|---|
| >PF13291 ACT_4: ACT domain; PDB: 2KO1_B 3IBW_A | Back alignment and domain information |
|---|
| >TIGR01693 UTase_glnD [Protein-PII] uridylyltransferase | Back alignment and domain information |
|---|
| >PRK03381 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04893 ACT_GcvR_1 ACT domains that comprise the Glycine Cleavage System Transcriptional Repressor (GcvR) protein, and other related domains | Back alignment and domain information |
|---|
| >PRK03059 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >TIGR01693 UTase_glnD [Protein-PII] uridylyltransferase | Back alignment and domain information |
|---|
| >COG2844 GlnD UTP:GlnB (protein PII) uridylyltransferase [Posttranslational modification, protein turnover, chaperones] | Back alignment and domain information |
|---|
| >cd04887 ACT_MalLac-Enz ACT_MalLac-Enz CD includes the N-terminal ACT domain of putative NAD-dependent malic enzyme 1, Bacillus subtilis YqkI and related domains | Back alignment and domain information |
|---|
| >PRK05007 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >PRK01759 glnD PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04872 ACT_1ZPV ACT domain proteins similar to the yet uncharacterized Streptococcus pneumoniae ACT domain protein | Back alignment and domain information |
|---|
| >PRK03381 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04875 ACT_F4HF-DF N-terminal ACT domain of formyltetrahydrofolate deformylase (F4HF-DF; formyltetrahydrofolate hydrolase) | Back alignment and domain information |
|---|
| >PRK00194 hypothetical protein; Validated | Back alignment and domain information |
|---|
| >cd04869 ACT_GcvR_2 ACT domains that comprise the Glycine Cleavage System Transcriptional Repressor (GcvR) protein, and other related domains | Back alignment and domain information |
|---|
| >cd04870 ACT_PSP_1 CT domains found N-terminal of phosphoserine phosphatase (PSP, SerB) | Back alignment and domain information |
|---|
| >cd04888 ACT_PheB-BS C-terminal ACT domain of a small (~147 a | Back alignment and domain information |
|---|
| >PRK03059 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04886 ACT_ThrD-II-like C-terminal ACT domain of biodegradative (catabolic) threonine dehydratase II (ThrD-II) and other related ACT domains | Back alignment and domain information |
|---|
| >PRK00275 glnD PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >PRK04435 hypothetical protein; Provisional | Back alignment and domain information |
|---|
| >PRK05092 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04880 ACT_AAAH-PDT-like ACT domain of the nonheme iron-dependent, aromatic amino acid hydroxylases (AAAH) | Back alignment and domain information |
|---|
| >cd04881 ACT_HSDH-Hom ACT_HSDH_Hom CD includes the C-terminal ACT domain of the NAD(P)H-dependent, homoserine dehydrogenase (HSDH) and related domains | Back alignment and domain information |
|---|
| >cd04894 ACT_ACR-like_1 ACT domain-containing protein which is composed almost entirely of four ACT domain repeats (the "ACR" protein) | Back alignment and domain information |
|---|
| >cd04905 ACT_CM-PDT C-terminal ACT domain of the bifunctional chorismate mutase-prephenate dehydratase (CM-PDT) enzyme and the prephenate dehydratase (PDT) enzyme | Back alignment and domain information |
|---|
| >cd02116 ACT ACT domains are commonly involved in specifically binding an amino acid or other small ligand leading to regulation of the enzyme | Back alignment and domain information |
|---|
| >cd04877 ACT_TyrR N-terminal ACT domain of the TyrR protein | Back alignment and domain information |
|---|
| >cd04876 ACT_RelA-SpoT ACT domain found C-terminal of the RelA/SpoT domains | Back alignment and domain information |
|---|
| >PRK08577 hypothetical protein; Provisional | Back alignment and domain information |
|---|
| >cd04884 ACT_CBS C-terminal ACT domain of the cystathionine beta-synthase (CBS) domain protein found in Thermotoga maritima, Tm0935, and delta proteobacteria | Back alignment and domain information |
|---|
| >KOG3910 consensus Helix loop helix transcription factor [Transcription] | Back alignment and domain information |
|---|
| >cd04878 ACT_AHAS N-terminal ACT domain of the Escherichia coli IlvH-like regulatory subunit of acetohydroxyacid synthase (AHAS) | Back alignment and domain information |
|---|
| >PRK04374 PII uridylyl-transferase; Provisional | Back alignment and domain information |
|---|
| >cd04931 ACT_PAH ACT domain of the nonheme iron-dependent aromatic amino acid hydroxylase, phenylalanine hydroxylases (PAH) | Back alignment and domain information |
|---|
| >cd04874 ACT_Af1403 N-terminal ACT domain of the yet uncharacterized, small (~133 a | Back alignment and domain information |
|---|
| >KOG4447 consensus Transcription factor TWIST [Transcription] | Back alignment and domain information |
|---|
| >PRK13011 formyltetrahydrofolate deformylase; Reviewed | Back alignment and domain information |
|---|
| >TIGR00655 PurU formyltetrahydrofolate deformylase | Back alignment and domain information |
|---|
| >cd04903 ACT_LSD C-terminal ACT domain of the L-serine dehydratase (LSD), iron-sulfur-dependent, beta subunit | Back alignment and domain information |
|---|
| >PRK07334 threonine dehydratase; Provisional | Back alignment and domain information |
|---|
| >cd04909 ACT_PDH-BS C-terminal ACT domain of the monofunctional, NAD dependent, prephenate dehydrogenase (PDH) | Back alignment and domain information |
|---|
| >cd04904 ACT_AAAH ACT domain of the nonheme iron-dependent, aromatic amino acid hydroxylases (AAAH) | Back alignment and domain information |
|---|
| >KOG3560 consensus Aryl-hydrocarbon receptor [Transcription] | Back alignment and domain information |
|---|
| >cd04882 ACT_Bt0572_2 C-terminal ACT domain of a novel protein composed of just two ACT domains | Back alignment and domain information |
|---|
| >PRK13010 purU formyltetrahydrofolate deformylase; Reviewed | Back alignment and domain information |
|---|
| >cd04885 ACT_ThrD-I Tandem C-terminal ACT domains of threonine dehydratase I (ThrD-I; L-threonine hydrolyase) | Back alignment and domain information |
|---|
| >COG2844 GlnD UTP:GlnB (protein PII) uridylyltransferase [Posttranslational modification, protein turnover, chaperones] | Back alignment and domain information |
|---|
| >cd04879 ACT_3PGDH-like ACT_3PGDH-like CD includes the C-terminal ACT (regulatory) domain of D-3-phosphoglycerate dehydrogenase (3PGDH) | Back alignment and domain information |
|---|
| >cd04908 ACT_Bt0572_1 N-terminal ACT domain of a novel protein composed almost entirely of two tandem ACT domains | Back alignment and domain information |
|---|
| >cd04929 ACT_TPH ACT domain of the nonheme iron-dependent aromatic amino acid hydroxylase, tryptophan hydroxylases (TPH), both peripheral (TPH1) and neuronal (TPH2) enzymes | Back alignment and domain information |
|---|
| >PRK06027 purU formyltetrahydrofolate deformylase; Reviewed | Back alignment and domain information |
|---|
| >cd04883 ACT_AcuB C-terminal ACT domain of the Bacillus subtilis acetoin utilization protein, AcuB | Back alignment and domain information |
|---|
| >KOG3898 consensus Transcription factor NeuroD and related HTH proteins [Transcription] | Back alignment and domain information |
|---|
| >PRK11895 ilvH acetolactate synthase 3 regulatory subunit; Reviewed | Back alignment and domain information |
|---|
| >KOG3559 consensus Transcriptional regulator SIM1 [Transcription] | Back alignment and domain information |
|---|
| >cd04930 ACT_TH ACT domain of the nonheme iron-dependent aromatic amino acid hydroxylase, tyrosine hydroxylases (TH) | 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 |
|---|
| >TIGR00119 acolac_sm acetolactate synthase, small subunit | Back alignment and domain information |
|---|
| >PRK11092 bifunctional (p)ppGpp synthetase II/ guanosine-3',5'-bis pyrophosphate 3'-pyrophosphohydrolase; Provisional | Back alignment and domain information |
|---|
| >PRK11589 gcvR glycine cleavage system transcriptional repressor; Provisional | Back alignment and domain information |
|---|
| >COG4492 PheB ACT domain-containing protein [General function prediction only] | Back alignment and domain information |
|---|
| >cd04889 ACT_PDH-BS-like C-terminal ACT domain of the monofunctional, NAD dependent, prephenate dehydrogenase (PDH) enzyme that catalyzes the formation of 4-hydroxyphenylpyruvate from prephenate | Back alignment and domain information |
|---|
| >PRK10872 relA (p)ppGpp synthetase I/GTP pyrophosphokinase; Provisional | Back alignment and domain information |
|---|
| >cd04901 ACT_3PGDH C-terminal ACT (regulatory) domain of D-3-Phosphoglycerate Dehydrogenase (3PGDH) found in fungi and bacteria | Back alignment and domain information |
|---|
| >KOG4395 consensus Transcription factor Atonal, contains HTH domain [Transcription] | Back alignment and domain information |
|---|
| >TIGR00691 spoT_relA (p)ppGpp synthetase, RelA/SpoT family | Back alignment and domain information |
|---|
| >PRK13562 acetolactate synthase 1 regulatory subunit; Provisional | Back alignment and domain information |
|---|
| >cd04906 ACT_ThrD-I_1 First of two tandem C-terminal ACT domains of threonine dehydratase I (ThrD-I; L-threonine hydrolyase) | Back alignment and domain information |
|---|
| >PRK08198 threonine dehydratase; Provisional | Back alignment and domain information |
|---|
Homologous Structure Templates
Structure Templates Detected by BLAST 
Original result of BLAST against Protein Data Bank
No homologous structure with e-value below 0.005
Structure Templates Detected by RPS-BLAST 
Original result of RPS-BLAST against PDB70 database
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
E-value ![]() |
| Query | 259 | |||
| 1am9_A | 82 | Srebp-1A, protein (sterol regulatory element bindi | 2e-11 | |
| 1nkp_A | 88 | C-MYC, MYC proto-oncogene protein; transcription, | 3e-10 | |
| 1hlo_A | 80 | Protein (transcription factor MAX); transcriptiona | 2e-09 | |
| 1an4_A | 65 | Protein (upstream stimulatory factor); protein-DNA | 3e-09 | |
| 1nkp_B | 83 | MAX protein, MYC proto-oncogene protein; transcrip | 5e-09 | |
| 1nlw_A | 80 | MAD protein, MAX dimerizer; transcription factor, | 5e-06 | |
| 1a0a_A | 63 | BHLH, protein (phosphate system positive regulator | 1e-05 | |
| 4f3l_A | 361 | Mclock, circadian locomoter output cycles protein | 2e-05 | |
| 4f3l_B | 387 | BMAL1B; BHLH, PAS, circadian rhythm proteins, tran | 8e-05 |
| >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 = 57.8 bits (140), Expect = 2e-11
Identities = 16/59 (27%), Positives = 31/59 (52%), Gaps = 1/59 (1%)
Query: 99 HVIAERKRREKMNQQFIALSAVIPGIKQ-MNKASVLEGTIKHLKELQERGKKLVEHTKR 156
H E++ R +N + I L ++ G + +NK++VL I +++ LQ +KL +
Sbjct: 10 HNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQKLKQENLS 68
|
| >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 |
|---|
| >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 |
|---|
| >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 |
|---|
| >1nlw_A MAD protein, MAX dimerizer; transcription factor, DNA, BHLHZ, transcription/DNA complex; 2.00A {Homo sapiens} SCOP: a.38.1.1 Length = 80 | 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_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 |
|---|
| >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 
Original result of HHsearch against PDB70 database
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
Probability ![]() |
| Query | 259 | |||
| 1am9_A | 82 | Srebp-1A, protein (sterol regulatory element bindi | 99.65 | |
| 1hlo_A | 80 | Protein (transcription factor MAX); transcriptiona | 99.56 | |
| 1nkp_B | 83 | MAX protein, MYC proto-oncogene protein; transcrip | 99.55 | |
| 1an4_A | 65 | Protein (upstream stimulatory factor); protein-DNA | 99.55 | |
| 4h10_B | 71 | Circadian locomoter output cycles protein kaput; B | 99.53 | |
| 1nkp_A | 88 | C-MYC, MYC proto-oncogene protein; transcription, | 99.53 | |
| 4ati_A | 118 | MITF, microphthalmia-associated transcription fact | 99.51 | |
| 1a0a_A | 63 | BHLH, protein (phosphate system positive regulator | 99.51 | |
| 1nlw_A | 80 | MAD protein, MAX dimerizer; transcription factor, | 99.49 | |
| 4h10_A | 73 | ARYL hydrocarbon receptor nuclear translocator-LI | 99.45 | |
| 3u5v_A | 76 | Protein MAX, transcription factor E2-alpha chimer; | 99.38 | |
| 2ql2_B | 60 | Neurod1, neurogenic differentiation factor 1; basi | 99.17 | |
| 1mdy_A | 68 | Protein (MYOD BHLH domain); protein-DNA complex, t | 99.15 | |
| 4f3l_A | 361 | Mclock, circadian locomoter output cycles protein | 98.92 | |
| 4f3l_B | 387 | BMAL1B; BHLH, PAS, circadian rhythm proteins, tran | 98.81 | |
| 2lfh_A | 68 | DNA-binding protein inhibitor ID-3; structural gen | 98.62 | |
| 4ath_A | 83 | MITF, microphthalmia-associated transcription fact | 98.42 | |
| 4aya_A | 97 | DNA-binding protein inhibitor ID-2; cell cycle; 2. | 98.07 | |
| 1zpv_A | 91 | ACT domain protein; structural genomics, PSI, prot | 97.16 | |
| 1u8s_A | 192 | Glycine cleavage system transcriptional repressor, | 96.43 | |
| 2ko1_A | 88 | CTR148A, GTP pyrophosphokinase; homodimer, alpha+b | 96.28 | |
| 2nyi_A | 195 | Unknown protein; protein structure initiative, PSI | 96.14 | |
| 2nyi_A | 195 | Unknown protein; protein structure initiative, PSI | 95.47 | |
| 1u8s_A | 192 | Glycine cleavage system transcriptional repressor, | 95.19 | |
| 3p96_A | 415 | Phosphoserine phosphatase SERB; ssgcid, structural | 92.37 | |
| 3o1l_A | 302 | Formyltetrahydrofolate deformylase; structural gen | 91.27 | |
| 3obi_A | 288 | Formyltetrahydrofolate deformylase; structural gen | 91.14 | |
| 3n0v_A | 286 | Formyltetrahydrofolate deformylase; formyl transfe | 91.08 | |
| 2jhe_A | 190 | Transcription regulator TYRR; aromatic hydrocarbon | 90.67 | |
| 2f1f_A | 164 | Acetolactate synthase isozyme III small subunit; f | 90.66 | |
| 3lou_A | 292 | Formyltetrahydrofolate deformylase; structural gen | 90.01 | |
| 1y7p_A | 223 | Hypothetical protein AF1403; structural genomics, | 89.46 | |
| 2pc6_A | 165 | Probable acetolactate synthase isozyme III (small; | 88.91 | |
| 2fgc_A | 193 | Acetolactate synthase, small subunit; regulatory s | 85.67 | |
| 3nrb_A | 287 | Formyltetrahydrofolate deformylase; N-terminal ACT | 85.52 |
| >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=99.65 E-value=1.6e-16 Score=119.66 Aligned_cols=62 Identities=26% Similarity=0.435 Sum_probs=58.4
Q ss_pred hhhhhhHHHHHHHHHHHHhHHHHhccCCCC-CCCCccchHHHHHHHHHHHHHHHHHHHHhhhh
Q 038298 95 QAQEHVIAERKRREKMNQQFIALSAVIPGI-KQMNKASVLEGTIKHLKELQERGKKLVEHTKR 156 (259)
Q Consensus 95 ~~~~h~~~ER~RR~k~n~~~~~LrslvP~~-~k~dK~siL~~ai~YIk~Lq~~v~~L~~~~~~ 156 (259)
.+..|+.+||+||++||+.|..|+++||+. .|++|++||.+||+||++||.+++.|+++.+.
T Consensus 6 rr~~H~~~ErrRR~~in~~f~~L~~lvP~~~~k~~Ka~IL~~Ai~YI~~Lq~~~~~L~~e~~~ 68 (82)
T 1am9_A 6 KRTAHNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQKLKQENLS 68 (82)
T ss_dssp HHHHHHHHHHHHHHHHHHHHHHHHHHHTCSSCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_pred HHHhhhhHHHHHHHHHHHHHHHHHHhccCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Confidence 577999999999999999999999999986 89999999999999999999999999987653
|
| >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 |
|---|
| >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 |
|---|
| >4h10_B Circadian locomoter output cycles protein kaput; BHLH, circadian transcription, transcription-DNA complex; 2.40A {Homo sapiens} | 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 |
|---|
| >4ati_A MITF, microphthalmia-associated transcription factor; DNA-binding protein-DNA complex, melanoma; 2.60A {Mus musculus} PDB: 4atk_A | 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 |
|---|
| >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 |
|---|
| >4h10_A ARYL hydrocarbon receptor nuclear translocator-LI 1; BHLH, circadian transcription, transcription-DNA complex; 2.40A {Homo sapiens} | 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 |
|---|
| >2ql2_B Neurod1, neurogenic differentiation factor 1; basic-helix-loop-helix; HET: DNA; 2.50A {Mus musculus} | 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 |
|---|
| >4f3l_A Mclock, circadian locomoter output cycles protein kaput; BHLH, PAS, circadian rhythm proteins, transcription-activato; 2.27A {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 |
|---|
| >4ath_A MITF, microphthalmia-associated transcription factor; DNA binding protein, melanoma; HET: MSE; 1.95A {Mus musculus} | Back alignment and structure |
|---|
| >4aya_A DNA-binding protein inhibitor ID-2; cell cycle; 2.10A {Homo sapiens} | Back alignment and structure |
|---|
| >1zpv_A ACT domain protein; structural genomics, PSI, protein structure INIT midwest center for structural genomics, MCSG, unknown funct; 1.90A {Streptococcus pneumoniae} SCOP: d.58.18.7 | Back alignment and structure |
|---|
| >1u8s_A Glycine cleavage system transcriptional repressor, putative; structural genomics, protein structure initiative (PSI), domain swapping; 2.45A {Vibrio cholerae} SCOP: d.58.18.5 d.58.18.5 | Back alignment and structure |
|---|
| >2ko1_A CTR148A, GTP pyrophosphokinase; homodimer, alpha+beta, transferase, structural genomics, PSI-2, protein structure initiative; NMR {Chlorobaculum tepidum} PDB: 3ibw_A | Back alignment and structure |
|---|
| >2nyi_A Unknown protein; protein structure initiative, PSI, center for eukaryotic structural genomics, CESG, structural genomics; 1.80A {Galdieria sulphuraria} | Back alignment and structure |
|---|
| >2nyi_A Unknown protein; protein structure initiative, PSI, center for eukaryotic structural genomics, CESG, structural genomics; 1.80A {Galdieria sulphuraria} | Back alignment and structure |
|---|
| >1u8s_A Glycine cleavage system transcriptional repressor, putative; structural genomics, protein structure initiative (PSI), domain swapping; 2.45A {Vibrio cholerae} SCOP: d.58.18.5 d.58.18.5 | Back alignment and structure |
|---|
| >3p96_A Phosphoserine phosphatase SERB; ssgcid, structural genomics, structural genomics center for infectious disease, hydrolas; 2.05A {Mycobacterium avium} | Back alignment and structure |
|---|
| >3o1l_A Formyltetrahydrofolate deformylase; structural genomics, joint center for structural genomics, J protein structure initiative; HET: MSE; 2.20A {Pseudomonas syringae PV} | Back alignment and structure |
|---|
| >3obi_A Formyltetrahydrofolate deformylase; structural genomics, joint center for structural genomics, J protein structure initiative; HET: MSE; 1.95A {Rhodopseudomonas palustris} | Back alignment and structure |
|---|
| >3n0v_A Formyltetrahydrofolate deformylase; formyl transferase, ACT domain, structural genomics, joint C structural genomics, JCSG; HET: MSE; 2.25A {Pseudomonas putida} | Back alignment and structure |
|---|
| >2jhe_A Transcription regulator TYRR; aromatic hydrocarbons catabolism, TYRR protei nucleotide-binding, transcription regulation, activator; HET: PG4; 2.30A {Escherichia coli} | Back alignment and structure |
|---|
| >2f1f_A Acetolactate synthase isozyme III small subunit; ferredoxin fold, ACT domain, transferase; HET: P33 1PE; 1.75A {Escherichia coli} SCOP: d.58.18.6 d.58.18.6 | Back alignment and structure |
|---|
| >3lou_A Formyltetrahydrofolate deformylase; structural genomics, JOI for structural genomics, JCSG, protein structure initiative hydrolase; HET: MSE; 1.90A {Burkholderia mallei} | Back alignment and structure |
|---|
| >1y7p_A Hypothetical protein AF1403; structural genomics, protein structure initiative, PSI, alpha-beta-alpha sandwich; HET: RIP; 1.90A {Archaeoglobus fulgidus} SCOP: c.23.1.7 d.58.18.12 | Back alignment and structure |
|---|
| >2pc6_A Probable acetolactate synthase isozyme III (small; regulatory subunit, structural genomi protein structure initiative; HET: MSE; 2.50A {Nitrosomonas europaea atcc 19718} SCOP: d.58.18.6 d.58.18.6 | Back alignment and structure |
|---|
| >2fgc_A Acetolactate synthase, small subunit; regulatory subunit, structural genomi protein structure initiative; 2.30A {Thermotoga maritima} SCOP: d.58.18.6 d.58.18.6 | Back alignment and structure |
|---|
| >3nrb_A Formyltetrahydrofolate deformylase; N-terminal ACT domain, structural genomics, joint center for structural genomics, JCSG; HET: MSE FLC; 2.05A {Pseudomonas putida} | Back alignment and structure |
|---|
Homologous Structure Domains
Structure Domains Detected by RPS-BLAST 
Original result of RPS-BLAST against SCOP70(version1.75) database
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
E-value ![]() |
| 259 | ||||
| d1an4a_ | 65 | a.38.1.1 (A:) Usf B/HLH domain {Human (Homo sapien | 7e-10 | |
| d1nkpb_ | 83 | a.38.1.1 (B:) Max protein {Human (Homo sapiens) [T | 3e-09 | |
| d1mdya_ | 68 | a.38.1.1 (A:) Myod B/HLH domain {Mouse (Mus muscul | 3e-09 | |
| d1am9a_ | 80 | a.38.1.1 (A:) SREBP-1a {Human (Homo sapiens) [TaxI | 8e-09 | |
| d1uklc_ | 61 | a.38.1.1 (C:) SREBP-2 {Human (Homo sapiens) [TaxId | 1e-08 | |
| d1a0aa_ | 63 | a.38.1.1 (A:) Pho4 B/HLH domain {Baker's yeast (Sa | 2e-08 | |
| d1nkpa_ | 88 | a.38.1.1 (A:) Myc proto-oncogene protein {Human (H | 3e-08 | |
| d1nlwa_ | 79 | a.38.1.1 (A:) Mad protein {Human (Homo sapiens) [T | 3e-08 |
| >d1an4a_ a.38.1.1 (A:) Usf B/HLH domain {Human (Homo sapiens) [TaxId: 9606]} Length = 65 | 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: Usf B/HLH domain species: Human (Homo sapiens) [TaxId: 9606]
Score = 51.7 bits (124), Expect = 7e-10
Identities = 15/57 (26%), Positives = 28/57 (49%), Gaps = 6/57 (10%)
Query: 99 HVIAERKRREKMNQQFIALSAVIPGI------KQMNKASVLEGTIKHLKELQERGKK 149
H ER+RR+K+N + LS +IP +K +L +++EL++ +
Sbjct: 9 HNEVERRRRDKINNWIVQLSKIIPDSSMESTKSGQSKGGILSKASDYIQELRQSNHR 65
|
| >d1nkpb_ a.38.1.1 (B:) Max protein {Human (Homo sapiens) [TaxId: 9606]} Length = 83 | 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 |
|---|
| >d1am9a_ a.38.1.1 (A:) SREBP-1a {Human (Homo sapiens) [TaxId: 9606]} Length = 80 | Back information, alignment and structure |
|---|
| >d1uklc_ a.38.1.1 (C:) SREBP-2 {Human (Homo sapiens) [TaxId: 9606]} Length = 61 | 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 |
|---|
| >d1nkpa_ a.38.1.1 (A:) Myc proto-oncogene protein {Human (Homo sapiens) [TaxId: 9606]} Length = 88 | 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 
Original result of HHsearch against SCOP70(version1.75) database
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
Probability ![]() |
| Query | 259 | |||
| d1am9a_ | 80 | SREBP-1a {Human (Homo sapiens) [TaxId: 9606]} | 99.55 | |
| d1nlwa_ | 79 | Mad protein {Human (Homo sapiens) [TaxId: 9606]} | 99.54 | |
| d1a0aa_ | 63 | Pho4 B/HLH domain {Baker's yeast (Saccharomyces ce | 99.52 | |
| d1nkpb_ | 83 | Max protein {Human (Homo sapiens) [TaxId: 9606]} | 99.51 | |
| d1nkpa_ | 88 | Myc proto-oncogene protein {Human (Homo sapiens) [ | 99.5 | |
| d1mdya_ | 68 | Myod B/HLH domain {Mouse (Mus musculus) [TaxId: 10 | 99.49 | |
| d1an4a_ | 65 | Usf B/HLH domain {Human (Homo sapiens) [TaxId: 960 | 99.41 | |
| d1uklc_ | 61 | SREBP-2 {Human (Homo sapiens) [TaxId: 9606]} | 99.35 | |
| d1zpva1 | 83 | UPF0237 protein SP0238 {Streptococcus pneumoniae [ | 97.26 | |
| d1u8sa1 | 86 | putative transcriptional repressor VC2159 {Vibrio | 96.96 | |
| d1u8sa2 | 93 | putative transcriptional repressor VC2159 {Vibrio | 96.09 | |
| d1y7pa2 | 77 | Hypothetical protein AF1403, N-terminal domain {Ar | 95.6 | |
| d2f06a1 | 71 | Hypothetical protein BT0572 {Bacteroides thetaiota | 93.27 | |
| d2f06a2 | 70 | Hypothetical protein BT0572 {Bacteroides thetaiota | 90.07 | |
| d2qmwa2 | 80 | Prephenate dehydratase C-terminal domain {Staphylo | 90.06 | |
| d2fgca2 | 78 | Acetolactate synthase small subunit, IlvH {Thermot | 89.64 | |
| d1phza1 | 97 | Phenylalanine hydroxylase N-terminal domain {Rat ( | 89.4 | |
| d1sc6a3 | 84 | Phosphoglycerate dehydrogenase, regulatory (C-term | 87.41 |
| >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=99.55 E-value=2.5e-15 Score=110.74 Aligned_cols=62 Identities=26% Similarity=0.435 Sum_probs=57.1
Q ss_pred hhhhhhHHHHHHHHHHHHhHHHHhccCCCC-CCCCccchHHHHHHHHHHHHHHHHHHHHhhhh
Q 038298 95 QAQEHVIAERKRREKMNQQFIALSAVIPGI-KQMNKASVLEGTIKHLKELQERGKKLVEHTKR 156 (259)
Q Consensus 95 ~~~~h~~~ER~RR~k~n~~~~~LrslvP~~-~k~dK~siL~~ai~YIk~Lq~~v~~L~~~~~~ 156 (259)
.+..|+.+||+||++||+.|..|++|||+. .|++|++||.+||+||++|+.+++.|.++...
T Consensus 6 kR~~H~~~Er~RR~~in~~~~~L~~llP~~~~k~~K~~iL~~a~~yI~~L~~~~~~L~~e~~~ 68 (80)
T d1am9a_ 6 KRTAHNAIEKRYRSSINDKIIELKDLVVGTEAKLNKSAVLRKAIDYIRFLQHSNQKLKQENLS 68 (80)
T ss_dssp HHHHHHHHHHHHHHHHHHHHHHHHHHHTCSSCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_pred HHHHHHHHHHHHHHHHHHHHHHHHhcCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Confidence 467899999999999999999999999974 68999999999999999999999999887643
|
| >d1nlwa_ a.38.1.1 (A:) Mad 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 |
|---|
| >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 |
|---|
| >d1mdya_ a.38.1.1 (A:) Myod B/HLH domain {Mouse (Mus musculus) [TaxId: 10090]} | 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 |
|---|
| >d1uklc_ a.38.1.1 (C:) SREBP-2 {Human (Homo sapiens) [TaxId: 9606]} | Back information, alignment and structure |
|---|
| >d1zpva1 d.58.18.7 (A:1-83) UPF0237 protein SP0238 {Streptococcus pneumoniae [TaxId: 1313]} | Back information, alignment and structure |
|---|
| >d1u8sa1 d.58.18.5 (A:2-87) putative transcriptional repressor VC2159 {Vibrio cholerae [TaxId: 666]} | Back information, alignment and structure |
|---|
| >d1u8sa2 d.58.18.5 (A:88-180) putative transcriptional repressor VC2159 {Vibrio cholerae [TaxId: 666]} | Back information, alignment and structure |
|---|
| >d1y7pa2 d.58.18.12 (A:2-78) Hypothetical protein AF1403, N-terminal domain {Archaeon Archaeoglobus fulgidus [TaxId: 2234]} | Back information, alignment and structure |
|---|
| >d2f06a1 d.58.18.11 (A:71-141) Hypothetical protein BT0572 {Bacteroides thetaiotaomicron [TaxId: 818]} | Back information, alignment and structure |
|---|
| >d2f06a2 d.58.18.11 (A:1-70) Hypothetical protein BT0572 {Bacteroides thetaiotaomicron [TaxId: 818]} | Back information, alignment and structure |
|---|
| >d2qmwa2 d.58.18.3 (A:185-264) Prephenate dehydratase C-terminal domain {Staphylococcus aureus [TaxId: 1280]} | Back information, alignment and structure |
|---|
| >d2fgca2 d.58.18.6 (A:27-104) Acetolactate synthase small subunit, IlvH {Thermotoga maritima [TaxId: 2336]} | Back information, alignment and structure |
|---|
| >d1phza1 d.58.18.3 (A:19-115) Phenylalanine hydroxylase N-terminal domain {Rat (Rattus norvegicus) [TaxId: 10116]} | Back information, alignment and structure |
|---|
| >d1sc6a3 d.58.18.1 (A:327-410) Phosphoglycerate dehydrogenase, regulatory (C-terminal) domain {Escherichia coli [TaxId: 562]} | Back information, alignment and structure |
|---|