UniProtKB - P36956 (SRBP1_HUMAN)
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Sterol regulatory element-binding protein 1
SREBF1
Functioni
GO - Molecular functioni
- chromatin binding Source: Ensembl
- DNA binding Source: UniProtKB
- protein complex binding Source: Ensembl
- protein dimerization activity Source: InterPro
- protein kinase binding Source: Ensembl
- RNA polymerase II core promoter proximal region sequence-specific DNA binding Source: Ensembl
- RNA polymerase II regulatory region sequence-specific DNA binding Source: ParkinsonsUK-UCL
- RNA polymerase II transcription factor activity, ligand-activated sequence-specific DNA binding Source: ParkinsonsUK-UCL
- sterol response element binding Source: HGNC
- transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding Source: Ensembl
- transcription factor activity, sequence-specific DNA binding Source: HGNC
GO - Biological processi
- aging Source: Ensembl
- cellular response to fatty acid Source: Ensembl
- cellular response to starvation Source: HGNC
- cholesterol metabolic process Source: UniProtKB-KW
- circadian rhythm Source: Reactome
- fat cell differentiation Source: Ensembl
- insulin receptor signaling pathway Source: Ensembl
- lipid biosynthetic process Source: UniProtKB
- lipid metabolic process Source: ProtInc
- lung development Source: Ensembl
- mRNA transcription from RNA polymerase II promoter Source: Ensembl
- negative regulation of insulin secretion Source: Ensembl
- negative regulation of transcription from RNA polymerase II promoter Source: Ensembl
- positive regulation of cholesterol biosynthetic process Source: Ensembl
- positive regulation of histone deacetylation Source: Ensembl
- positive regulation of transcription from RNA polymerase II promoter Source: UniProtKB
- positive regulation of triglyceride biosynthetic process Source: UniProtKB
- regulation of cholesterol biosynthetic process Source: Reactome
- regulation of fatty acid metabolic process Source: Ensembl
- regulation of heart rate by chemical signal Source: Ensembl
- regulation of mitophagy Source: ParkinsonsUK-UCL
- regulation of protein stability Source: ParkinsonsUK-UCL
- regulation of protein targeting to mitochondrion Source: ParkinsonsUK-UCL
- regulation of transcription from RNA polymerase II promoter Source: ProtInc
- response to cAMP Source: Ensembl
- response to drug Source: Ensembl
- response to food Source: Ensembl
- response to glucagon Source: Ensembl
- response to glucose Source: Ensembl
- response to progesterone Source: Ensembl
- response to retinoic acid Source: Ensembl
Keywordsi
| Molecular function | Activator, DNA-binding |
| Biological process | Cholesterol metabolism, Lipid metabolism, Steroid metabolism, Sterol metabolism, Transcription, Transcription regulation |
Enzyme and pathway databases
| Reactomei | R-HSA-1368082. RORA activates gene expression. R-HSA-1655829. Regulation of cholesterol biosynthesis by SREBP (SREBF). R-HSA-1989781. PPARA activates gene expression. R-HSA-2426168. Activation of gene expression by SREBF (SREBP). R-HSA-381340. Transcriptional regulation of white adipocyte differentiation. |
| SignaLinki | P36956. |
| SIGNORi | P36956. |
Names & Taxonomyi
| Protein namesi | Recommended name: Sterol regulatory element-binding protein 1Short name: SREBP-1 Alternative name(s): Class D basic helix-loop-helix protein 1 Short name: bHLHd1 Sterol regulatory element-binding transcription factor 1 Cleaved into the following chain: |
| Gene namesi | Name:SREBF1 Synonyms:BHLHD1, SREBP1 |
| Organismi | Homo sapiens (Human) |
| Taxonomic identifieri | 9606 [NCBI] |
| Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
| Proteomesi |
|
Organism-specific databases
| HGNCi | HGNC:11289. SREBF1. |
Subcellular locationi
- Endoplasmic reticulum membrane By similarity; Multi-pass membrane protein Sequence analysis
- Golgi apparatus membrane By similarity; Multi-pass membrane protein Sequence analysis
- Cytoplasmic vesicle › COPII-coated vesicle membrane By similarity; Multi-pass membrane protein Sequence analysis
Note: Moves from the endoplasmic reticulum to the Golgi in the absence of sterols.By similarity
- Nucleus By similarity
- Nucleus 1 Publication
- Nucleus 1 Publication
Topology
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Topological domaini | 1 – 487 | CytoplasmicSequence analysisAdd BLAST | 487 | |
| Transmembranei | 488 – 508 | HelicalSequence analysisAdd BLAST | 21 | |
| Topological domaini | 509 – 547 | LumenalSequence analysisAdd BLAST | 39 | |
| Transmembranei | 548 – 568 | HelicalSequence analysisAdd BLAST | 21 | |
| Topological domaini | 569 – 1147 | CytoplasmicSequence analysisAdd BLAST | 579 |
GO - Cellular componenti
- cytoplasm Source: UniProtKB
- cytosol Source: Reactome
- endoplasmic reticulum Source: UniProtKB
- endoplasmic reticulum membrane Source: Reactome
- ER to Golgi transport vesicle membrane Source: UniProtKB-SubCell
- Golgi membrane Source: Reactome
- integral component of membrane Source: UniProtKB-KW
- nuclear envelope Source: ProtInc
- nucleoplasm Source: Reactome
- nucleus Source: BHF-UCL
- protein complex Source: Ensembl
Keywords - Cellular componenti
Cytoplasmic vesicle, Endoplasmic reticulum, Golgi apparatus, Membrane, NucleusPathology & Biotechi
Mutagenesis
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Mutagenesisi | 455 | S → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 456 | D → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 457 | S → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 460 | D → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 466 | D → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 481 | G → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 482 | M → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 483 | L → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 484 – 487 | DRSR → AS: Strong reduction of proteolytic processing in response to low sterol. 1 Publication | 4 | |
| Mutagenesisi | 484 | D → A: Loss of proteolytic processing in response to low sterol. 1 Publication | 1 | |
| Mutagenesisi | 485 | R → A: No effect on proteolytic processing. 1 Publication | 1 | |
| Mutagenesisi | 527 | R → A: Loss of proteolytic processing in response to low sterol. 1 Publication | 1 |
Organism-specific databases
| DisGeNETi | 6720. |
| OpenTargetsi | ENSG00000072310. |
| PharmGKBi | PA335. |
Polymorphism and mutation databases
| BioMutai | SREBF1. |
| DMDMi | 166897633. |
PTM / Processingi
Molecule processing
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| ChainiPRO_0000127447 | 1 – 1147 | Sterol regulatory element-binding protein 1Add BLAST | 1147 | |
| ChainiPRO_0000314029 | 1 – 490 | Processed sterol regulatory element-binding protein 1Add BLAST | 490 |
Amino acid modifications
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Modified residuei | 98 | PhosphoserineBy similarity | 1 | |
| Modified residuei | 117 | PhosphoserineCombined sources | 1 | |
| Modified residuei | 337 | Phosphoserine; by SIK1By similarity | 1 | |
| Modified residuei | 338 | Phosphoserine; by SIK1By similarity | 1 | |
| Modified residuei | 396 | Phosphoserine; by AMPKBy similarity | 1 | |
| Modified residuei | 402 | Phosphoserine; by SIK1By similarity | 1 | |
| Modified residuei | 457 | PhosphoserineBy similarity | 1 | |
| Modified residuei | 1060 | PhosphoserineCombined sources | 1 |
Post-translational modificationi
Sites
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Sitei | 460 – 461 | Cleavage; by caspase-3 and caspase-7By similarity | 2 | |
| Sitei | 490 – 491 | Cleavage; by S2PBy similarity | 2 | |
| Sitei | 530 – 531 | Cleavage; by S1PCurated | 2 |
Keywords - PTMi
PhosphoproteinProteomic databases
| MaxQBi | P36956. |
| PaxDbi | P36956. |
| PeptideAtlasi | P36956. |
| PRIDEi | P36956. |
PTM databases
| iPTMneti | P36956. |
| PhosphoSitePlusi | P36956. |
Miscellaneous databases
| PMAP-CutDBi | P36956. |
Expressioni
Tissue specificityi
Gene expression databases
| Bgeei | ENSG00000072310. |
| CleanExi | HS_SREBF1. |
| ExpressionAtlasi | P36956. baseline and differential. |
| Genevisiblei | P36956. HS. |
Organism-specific databases
| HPAi | CAB005406. HPA043343. HPA043878. |
Interactioni
Subunit structurei
Binary interactionsi
GO - Molecular functioni
- protein complex binding Source: Ensembl
- protein dimerization activity Source: InterPro
- protein kinase binding Source: Ensembl
Protein-protein interaction databases
| BioGridi | 112598. 60 interactors. |
| DIPi | DIP-331N. |
| IntActi | P36956. 16 interactors. |
| MINTi | MINT-2803077. |
| STRINGi | 9606.ENSP00000348069. |
Structurei
Secondary structure
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Helixi | 321 – 350 | Combined sources | 30 | |
| Helixi | 359 – 396 | Combined sources | 38 |
3D structure databases
| Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
| 1AM9 | X-ray | 2.30 | A/B/C/D | 319-400 | [»] | |
| ProteinModelPortali | P36956. | |||||
| SMRi | P36956. | |||||
| ModBasei | Search... | |||||
| MobiDBi | Search... | |||||
Miscellaneous databases
| EvolutionaryTracei | P36956. |
Family & Domainsi
Domains and Repeats
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Domaini | 323 – 373 | bHLHPROSITE-ProRule annotationAdd BLAST | 51 |
Region
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Regioni | 1 – 60 | Transcriptional activation (acidic)Add BLAST | 60 | |
| Regioni | 234 – 497 | Interaction with LMNABy similarityAdd BLAST | 264 | |
| Regioni | 373 – 394 | Leucine-zipperAdd BLAST | 22 |
Compositional bias
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Compositional biasi | 61 – 178 | Pro/Ser-richAdd BLAST | 118 | |
| Compositional biasi | 427 – 462 | Gly/Pro/Ser-richAdd BLAST | 36 |
Sequence similaritiesi
Keywords - Domaini
Transmembrane, Transmembrane helixPhylogenomic databases
| eggNOGi | KOG2588. Eukaryota. ENOG410XSVP. LUCA. |
| GeneTreei | ENSGT00390000017651. |
| HOGENOMi | HOG000007091. |
| HOVERGENi | HBG061592. |
| InParanoidi | P36956. |
| KOi | K07197. |
| OMAi | FDPPYAG. |
| OrthoDBi | EOG091G01RE. |
| PhylomeDBi | P36956. |
| TreeFami | TF313894. |
Family and domain databases
| CDDi | cd00083. HLH. 1 hit. |
| Gene3Di | 4.10.280.10. 1 hit. |
| InterProi | View protein in InterPro IPR011598. bHLH_dom. |
| Pfami | View protein in Pfam PF00010. HLH. 1 hit. |
| SMARTi | View protein in SMART SM00353. HLH. 1 hit. |
| SUPFAMi | SSF47459. SSF47459. 1 hit. |
| PROSITEi | View protein in PROSITE PS50888. BHLH. 1 hit. |
Sequences (6)i
Sequence statusi: Complete.
Sequence processingi: The displayed sequence is further processed into a mature form.
This entry describes 6 isoformsi produced by alternative splicing. AlignAdd to basket
This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.
10 20 30 40 50
MDEPPFSEAA LEQALGEPCD LDAALLTDIE DMLQLINNQD SDFPGLFDPP
60 70 80 90 100
YAGSGAGGTD PASPDTSSPG SLSPPPATLS SSLEAFLSGP QAAPSPLSPP
110 120 130 140 150
QPAPTPLKMY PSMPAFSPGP GIKEESVPLS ILQTPTPQPL PGALLPQSFP
160 170 180 190 200
APAPPQFSST PVLGYPSPPG GFSTGSPPGN TQQPLPGLPL ASPPGVPPVS
210 220 230 240 250
LHTQVQSVVP QQLLTVTAAP TAAPVTTTVT SQIQQVPVLL QPHFIKADSL
260 270 280 290 300
LLTAMKTDGA TVKAAGLSPL VSGTTVQTGP LPTLVSGGTI LATVPLVVDA
310 320 330 340 350
EKLPINRLAA GSKAPASAQS RGEKRTAHNA IEKRYRSSIN DKIIELKDLV
360 370 380 390 400
VGTEAKLNKS AVLRKAIDYI RFLQHSNQKL KQENLSLRTA VHKSKSLKDL
410 420 430 440 450
VSACGSGGNT DVLMEGVKTE VEDTLTPPPS DAGSPFQSSP LSLGSRGSGS
460 470 480 490 500
GGSGSDSEPD SPVFEDSKAK PEQRPSLHSR GMLDRSRLAL CTLVFLCLSC
510 520 530 540 550
NPLASLLGAR GLPSPSDTTS VYHSPGRNVL GTESRDGPGW AQWLLPPVVW
560 570 580 590 600
LLNGLLVLVS LVLLFVYGEP VTRPHSGPAV YFWRHRKQAD LDLARGDFAQ
610 620 630 640 650
AAQQLWLALR ALGRPLPTSH LDLACSLLWN LIRHLLQRLW VGRWLAGRAG
660 670 680 690 700
GLQQDCALRV DASASARDAA LVYHKLHQLH TMGKHTGGHL TATNLALSAL
710 720 730 740 750
NLAECAGDAV SVATLAEIYV AAALRVKTSL PRALHFLTRF FLSSARQACL
760 770 780 790 800
AQSGSVPPAM QWLCHPVGHR FFVDGDWSVL STPWESLYSL AGNPVDPLAQ
810 820 830 840 850
VTQLFREHLL ERALNCVTQP NPSPGSADGD KEFSDALGYL QLLNSCSDAA
860 870 880 890 900
GAPAYSFSIS SSMATTTGVD PVAKWWASLT AVVIHWLRRD EEAAERLCPL
910 920 930 940 950
VEHLPRVLQE SERPLPRAAL HSFKAARALL GCAKAESGPA SLTICEKASG
960 970 980 990 1000
YLQDSLATTP ASSSIDKAVQ LFLCDLLLVV RTSLWRQQQP PAPAPAAQGT
1010 1020 1030 1040 1050
SSRPQASALE LRGFQRDLSS LRRLAQSFRP AMRRVFLHEA TARLMAGASP
1060 1070 1080 1090 1100
TRTHQLLDRS LRRRAGPGGK GGAVAELEPR PTRREHAEAL LLASCYLPPG
1110 1120 1130 1140
FLSAPGQRVG MLAEAARTLE KLGDRRLLHD CQQMLMRLGG GTTVTSS
The sequence of this isoform differs from the canonical sequence as follows:
1035-1147: VFLHEATARL...LGGGTTVTSS → LMDVLTSESA...KVPGWHGRMD
The sequence of this isoform differs from the canonical sequence as follows:
1-29: MDEPPFSEAALEQALGEPCDLDAALLTDI → MDCTF
1035-1147: VFLHEATARL...LGGGTTVTSS → LMDVLTSESA...KVPGWHGRMD
The sequence of this isoform differs from the canonical sequence as follows:
469-470: AK → TE
471-1147: Missing.
The sequence of this isoform differs from the canonical sequence as follows:
1-29: MDEPPFSEAALEQALGEPCDLDAALLTDI → MDCTF
469-470: AK → TE
471-1147: Missing.
Sequence cautioni
Natural variant
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Natural variantiVAR_038468 | 306 | N → S1 PublicationCorresponds to variant dbSNP:rs17855793Ensembl. | 1 | |
| Natural variantiVAR_038469 | 309 | A → T. Corresponds to variant dbSNP:rs35188700Ensembl. | 1 | |
| Natural variantiVAR_038470 | 417 | V → M. Corresponds to variant dbSNP:rs2229590Ensembl. | 1 | |
| Natural variantiVAR_038471 | 580 | V → M. Corresponds to variant dbSNP:rs36215896Ensembl. | 1 | |
| Natural variantiVAR_038472 | 746 | R → H. Corresponds to variant dbSNP:rs2228461Ensembl. | 1 | |
| Natural variantiVAR_038473 | 834 | S → L1 PublicationCorresponds to variant dbSNP:rs17855792Ensembl. | 1 | |
| Natural variantiVAR_038474 | 1000 | T → A2 PublicationsCorresponds to variant dbSNP:rs1042017Ensembl. | 1 | |
| Natural variantiVAR_038475 | 1008 | A → P. Corresponds to variant dbSNP:rs35014224Ensembl. | 1 |
Alternative sequence
| Feature key | Position(s) | DescriptionActions | Graphical view | Length |
|---|---|---|---|---|
| Alternative sequenceiVSP_002149 | 1 – 29 | MDEPP…LLTDI → MDCTF in isoform SREBP-1C and isoform SREBP-1cDelta. 2 PublicationsAdd BLAST | 29 | |
| Alternative sequenceiVSP_030859 | 30 | E → EGEVGAGRGRANGLDAPRAG ADRGAMDCTFE in isoform 4. 1 Publication | 1 | |
| Alternative sequenceiVSP_047598 | 469 – 470 | AK → TE in isoform SREBP-1aDelta and isoform SREBP-1cDelta. 1 Publication | 2 | |
| Alternative sequenceiVSP_047599 | 471 – 1147 | Missing in isoform SREBP-1aDelta and isoform SREBP-1cDelta. 1 PublicationAdd BLAST | 677 | |
| Alternative sequenceiVSP_002150 | 1035 – 1147 | VFLHE…TVTSS → LMDVLTSESAWALPQHLGKG FPSPSGHKVPGWHGRMD in isoform SREBP-1B and isoform SREBP-1C. 1 PublicationAdd BLAST | 113 |
Sequence databases
| Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U00968 mRNA. Translation: AAC50051.2. S66167 mRNA. Translation: AAB28522.2. Different initiation. S66168 mRNA. Translation: AAB28523.1. AB373958 mRNA. Translation: BAG06742.1. AB373959 mRNA. Translation: BAG06743.1. AC122129 Genomic DNA. No translation available. CH471196 Genomic DNA. Translation: EAW55689.1. CH471196 Genomic DNA. Translation: EAW55690.1. BC023621 mRNA. Translation: AAH23621.1. BC026962 mRNA. Translation: AAH26962.1. BC057388 mRNA. Translation: AAH57388.1. BC063281 mRNA. Translation: AAH63281.1. AB209609 mRNA. Translation: BAD92846.1. Sequence problems. |
| CCDSi | CCDS11189.1. [P36956-1] CCDS32583.1. [P36956-4] |
| PIRi | A48845. |
| RefSeqi | NP_001005291.1. NM_001005291.2. [P36956-4] NP_004167.3. NM_004176.4. [P36956-1] |
| UniGenei | Hs.592123. Hs.733635. |
Genome annotation databases
| Ensembli | ENST00000261646; ENSP00000261646; ENSG00000072310. [P36956-1] ENST00000355815; ENSP00000348069; ENSG00000072310. [P36956-4] |
| GeneIDi | 6720. |
| KEGGi | hsa:6720. |
| UCSCi | uc002grt.3. human. [P36956-1] |
Keywords - Coding sequence diversityi
Alternative splicing, PolymorphismSimilar proteinsi
Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:| 100% | UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry. |
| 90% | UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence). |
| 50% | UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster. |
Entry informationi
| Entry namei | SRBP1_HUMAN | |
| Accessioni | P36956Primary (citable) accession number: P36956 Secondary accession number(s): B0I4X3 Q8TAK9 | |
| Entry historyi | Integrated into UniProtKB/Swiss-Prot: | June 1, 1994 |
| Last sequence update: | February 5, 2008 | |
| Last modified: | July 5, 2017 | |
| This is version 185 of the entry and version 2 of the sequence. See complete history. | ||
| Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
| Annotation program | Chordata Protein Annotation Program | |
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | |
Miscellaneousi
Keywords - Technical termi
3D-structure, Complete proteome, Direct protein sequencing, Reference proteomeDocuments
- Human chromosome 17
Human chromosome 17: entries, gene names and cross-references to MIM - Human entries with polymorphisms or disease mutations
List of human entries with polymorphisms or disease mutations - Human polymorphisms and disease mutations
Index of human polymorphisms and disease mutations - MIM cross-references
Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot - PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families
