Q9Y2N7 (HIF3A_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 103.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Hypoxia-inducible factor 3-alpha Short name=HIF-3-alpha Short name=HIF3-alpha Alternative name(s): Basic-helix-loop-helix-PAS protein MOP7 Class E basic helix-loop-helix protein 17 Short name=bHLHe17 HIF3-alpha-1 Inhibitory PAS domain protein Short name=IPAS Member of PAS protein 7 PAS domain-containing protein 7 | ||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 669 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Involved in adaptive response to hypoxia. Suppresses hypoxia-inducible expression of HIF1A and EPAS1. Binds to core DNA sequence 5'-TACGTG-3' within the hypoxia response element (HRE) of target gene promoters. The complex HIF3A-ARNT activates the transcription of reporter genes driven by HRE. Isoform 4 has a dominant-negative function of inactivating HIF1A-mediated transcription. Isoform 4 attenuates the binding of HIF1A to hypoxia-responsive elements (HRE), thus inhibiting HRE-driven transcription. Hypoxia induces down-regulation of isoform 4, leading to activation of HIF1A in hypoxia. Conversely, upon restoring normoxia, the expression of isoform 4 increases and thereby secure an inhibition of HIF1A activity. Isoform 4 may be a negative regulator of hypoxia-inducible gene expression in the kidney and may be involved in renal tumorigenesis. Functions as an inhibitor of angiogenesis in the cornea By similarity. Ref.1 |
| Subunit structure | Heterodimerizes with ARNT. Interacts via the oxygen-dependent degradation domain (ODD) with the beta domain of VHL. Ref.3 Ref.9 |
| Subcellular location | Nucleus. Cytoplasm. Note: In the nuclei of all periportal and perivenous hepatocytes. In the distal perivenous zone, detected in the cytoplasm of the hepatocytes By similarity. |
| Tissue specificity | Expressed in kidney. Expressed abundantly in lung epithelial cells. Expression is regulated in an oxygen-dependent manner. Ref.1 |
| Induction | Strongly induced by hypoxia (1% O2), both at the level of protein and mRNA due to an increase in protein stability and transcriptional activation. Ref.10 |
| Post-translational modification | In normoxia, hydroxylated on Pro-492 in the oxygen-dependent degradation domain (ODD) by PHD. The hydroxylated proline promotes interaction with VHL, initiating rapid ubiquitination and subsequent proteasomal degradation. |
| Sequence similarities | Contains 1 bHLH (basic helix-loop-helix) domain. Contains 2 PAS (PER-ARNT-SIM) domains. |
Ontologies
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q9Y2N7-1) 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. | ||||||
| Isoform 2 (identifier: Q9Y2N7-2) Also known as: HIF-3alpha1; The sequence of this isoform differs from the canonical sequence as follows: 1-8: MALGLQRA → MDWQDH | ||||||
| Isoform 3 (identifier: Q9Y2N7-3) Also known as: HIF-3alpha2; The sequence of this isoform differs from the canonical sequence as follows: 611-669: SFLLTGGPAP...QPRAGSAQAD → VCWGINGILWPSLPSWLKPTVL | ||||||
| Isoform 4 (identifier: Q9Y2N7-4) Also known as: HIF-3alpha4; The sequence of this isoform differs from the canonical sequence as follows: 293-363: LLSKGQAVTG...EQTEQHSRRP → CMYPISPGAK...FSPHLPPWWP 364-669: Missing. | ||||||
| Isoform 5 (identifier: Q9Y2N7-5) Also known as: HIF-3alpha3; The sequence of this isoform differs from the canonical sequence as follows: 1-56: Missing. 627-669: STPLLNLNEP...QPRAGSAQAD → TELTQFLLSV...APSPLGWFAI | ||||||
| Isoform 6 (identifier: Q9Y2N7-6) Also known as: HIF-3alpha6; The sequence of this isoform differs from the canonical sequence as follows: 1-86: Missing. 87-137: ACYLKALEGF...SIFDFIHPCD → MRPAAGAARR...ATCACTASAP 234-323: PPLGRGAFLS...LWTQTQATVV → GFVMVLTAEG...FSPHLPPWWP 324-669: Missing. | ||||||
| Isoform 7 (identifier: Q9Y2N7-7) The sequence of this isoform differs from the canonical sequence as follows: 1-120: MALGLQRARS...ENVSKHLGLS → MRPAAGAARR...ATCACTASAP | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 669 | 669 | Hypoxia-inducible factor 3-alpha | PRO_0000284414 | |||||
Regions | |||||||||
| Domain | 14 – 67 | 54 | bHLH | ||||||
| Domain | 82 – 154 | 73 | PAS 1 | ||||||
| Domain | 227 – 297 | 71 | PAS 2 | ||||||
| Region | 452 – 581 | 130 | ODD | ||||||
| Region | 454 – 506 | 53 | NTAD | ||||||
| Motif | 414 – 418 | 5 | LRRLL | ||||||
| Motif | 490 – 497 | 8 | LAPYISMD | ||||||
Amino acid modifications | |||||||||
| Modified residue | 492 | 1 | 4-hydroxyproline Ref.9 | ||||||
| Cross-link | 467 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) Ref.9 | |||||||
| Cross-link | 570 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin) Ref.9 | |||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 120 | 120 | MALGL…HLGLS → MRPAAGAARRPRCCTSWLTR CPSPAASAPTWTRPLSCASP SATCACTASAP in isoform 7. | VSP_043429 | |||||
| Alternative sequence | 1 – 86 | 86 | Missing in isoform 6. | VSP_024518 | |||||
| Alternative sequence | 1 – 56 | 56 | Missing in isoform 5. | VSP_024519 | |||||
| Alternative sequence | 1 – 8 | 8 | MALGLQRA → MDWQDH in isoform 2. | VSP_024520 | |||||
| Alternative sequence | 87 – 137 | 51 | ACYLK…IHPCD → MRPAAGAARRPRCCTSWLTR CPSPAASAPTWTRPLSCASP SATCACTASAP in isoform 6. | VSP_024521 | |||||
| Alternative sequence | 234 – 323 | 90 | PPLGR…QATVV → GFVMVLTAEGDMAYLSENVS NHLGLSQLELIGHSIFDFIH PCDQEELQDALTPHLNTSSL LPKPQGTVSFLAPSYPVPRS FSPHLPPWWP in isoform 6. | VSP_024522 | |||||
| Alternative sequence | 293 – 363 | 71 | LLSKG…HSRRP → CMYPISPGAKPAATWPPADT RTPQLPIPQDALPPHLNTSS LLPKPQGTVSFLAPSYPVPR SFSPHLPPWWP in isoform 4. | VSP_024523 | |||||
| Alternative sequence | 324 – 669 | 346 | Missing in isoform 6. | VSP_024524 | |||||
| Alternative sequence | 364 – 669 | 306 | Missing in isoform 4. | VSP_024525 | |||||
| Alternative sequence | 611 – 669 | 59 | SFLLT…SAQAD → VCWGINGILWPSLPSWLKPT VL in isoform 3. | VSP_024526 | |||||
| Alternative sequence | 627 – 669 | 43 | STPLL…SAQAD → TELTQFLLSVLSFPILDPYP LGCAAPGLHASPFSLPTISV PQNPLHSPPQPSRHALTLTL PHMFGAPGAPSPLGWFAI in isoform 5. | VSP_024527 | |||||
| Natural variant | 343 | 1 | Q → R. Ref.8 Corresponds to variant rs3764609 [ dbSNP | Ensembl ]. | VAR_031731 | |||||
| Natural variant | 463 | 1 | F → L. Corresponds to variant rs7253301 [ dbSNP | Ensembl ]. | VAR_031732 | |||||
Experimental info | |||||||||
| Mutagenesis | 467 | 1 | K → R: No loss of ubiquitination. Reduced ubiquitination; when associated with R-570. Ref.9 | ||||||
| Mutagenesis | 492 | 1 | P → A: Reduced ubiquitination. Ref.9 | ||||||
| Mutagenesis | 570 | 1 | K → R: No loss of ubiquitination. Reduced ubiquitination; when associated with R-467. Ref.9 | ||||||
| Sequence conflict | 202 | 1 | A → V in BAB55324. Ref.5 | ||||||
| Sequence conflict | 497 | 1 | D → G in BAB55324. Ref.5 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Expression and characterization of hypoxia-inducible factor (HIF)-3alpha in human kidney: suppression of HIF-mediated gene expression by HIF-3alpha." Hara S., Hamada J., Kobayashi C., Kondo Y., Imura N. Biochem. Biophys. Res. Commun. 287:808-813(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), FUNCTION, TISSUE SPECIFICITY. Tissue: Kidney. |
| [2] | "Cloning and characterization of human inhibitory PAS domain protein." Cheng J.Q. Submitted (DEC-2001) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3). |
| [3] | "Human HIF-3alpha4 is a dominant-negative regulator of HIF-1 and is down-regulated in renal cell carcinoma." Maynard M.A., Evans A.J., Hosomi T., Hara S., Jewett M.A., Ohh M. FASEB J. 19:1396-1406(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 4), INTERACTION WITH HIF1A AND ARNT. Tissue: Cerebellum. |
| [4] | "HIF-3alpha2, one of splicing variants of human hypoxia-inducible factor-3alpha, functions as an inhibitor of hypoxia-induced gene expression and tumor growth." Hara S., Hosomi T., Mita M., Sakaue M., Kondo Y. Submitted (FEB-2007) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3). Tissue: Kidney. |
| [5] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 3; 5 AND 7). Tissue: Embryo, Heart and Ovary. |
| [6] | "The DNA sequence and biology of human chromosome 19." Grimwood J., Gordon L.A., Olsen A.S., Terry A., Schmutz J., Lamerdin J.E., Hellsten U., Goodstein D., Couronne O., Tran-Gyamfi M., Aerts A., Altherr M., Ashworth L., Bajorek E., Black S., Branscomb E., Caenepeel S., Carrano A.V. Lucas S.M.Nature 428:529-535(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | Mural R.J., Istrail S., Sutton G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [8] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), VARIANT ARG-343. Tissue: Pancreas. |
| [9] | "Multiple splice variants of the human HIF-3 alpha locus are targets of the von Hippel-Lindau E3 ubiquitin ligase complex." Maynard M.A., Qi H., Chung J., Lee E.H., Kondo Y., Hara S., Conaway R.C., Conaway J.W., Ohh M. J. Biol. Chem. 278:11032-11040(2003) [PubMed] [Europe PMC] [Abstract] Cited for: ALTERNATIVE SPLICING, INTERACTION WITH VHL, UBIQUITINATION AT LYS-467 AND LYS-570, HYDROXYLATION AT PRO-492, MUTAGENESIS OF LYS-467; PRO-492 AND LYS-570. |
| [10] | "Hypoxia upregulates hypoxia inducible factor (HIF)-3alpha expression in lung epithelial cells: characterization and comparison with HIF-1alpha." Li Q.F., Wang X.R., Yang Y.W., Lin H. Cell Res. 16:548-558(2006) [PubMed] [Europe PMC] [Abstract] Cited for: INDUCTION. |
| + | Additional computationally mapped references. |
Web resources
| Wikipedia Hypoxia inducible factor entry |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AB054067 mRNA. Translation: BAB69689.1. AF463492 mRNA. Translation: AAL69947.1. AB118749 mRNA. Translation: BAD93355.1. AB295039 mRNA. Translation: BAG07185.1. AK021653 mRNA. Translation: BAB13865.1. AK024095 mRNA. Translation: BAB14824.1. AK027725 mRNA. Translation: BAB55324.1. AK297828 mRNA. Translation: BAG60164.1. AC007193 Genomic DNA. Translation: AAD22668.1. CH471126 Genomic DNA. Translation: EAW57410.1. BC080551 mRNA. Translation: AAH80551.1. |
| IPI | IPI00164458. IPI00292048. IPI00470784. IPI00738729. IPI00746815. IPI00844043. IPI00844320. |
| PIR | JC7771. |
| RefSeq | NP_071907.4. NM_022462.4. NP_690007.1. NM_152794.3. NP_690008.2. NM_152795.3. |
| UniGene | Hs.420830. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1P97 based on UniProtKB Q99814. |
| ProteinModelPortal | Q9Y2N7. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 9606.ENSP00000366898. |
PTM databases | |
| PhosphoSite | Q9Y2N7. |
Polymorphism databases | |
| DMDM | 145558932. |
Proteomic databases | |
| PaxDb | Q9Y2N7. |
| PRIDE | Q9Y2N7. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000244303; ENSP00000244303; ENSG00000124440. ENST00000300862; ENSP00000300862; ENSG00000124440. ENST00000377670; ENSP00000366898; ENSG00000124440. |
| GeneID | 64344. |
| KEGG | hsa:64344. |
| UCSC | uc002peh.3. human. uc002pel.3. human. |
Organism-specific databases | |
| CTD | 64344. |
| GeneCards | GC19P046800. |
| HGNC | HGNC:15825. HIF3A. |
| HPA | HPA041141. |
| MIM | 609976. gene. |
| neXtProt | NX_Q9Y2N7. |
| PharmGKB | PA29285. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG288942. |
| HOGENOM | HOG000234306. |
| HOVERGEN | HBG060456. |
| InParanoid | Q9Y2N7. |
| KO | K09096. |
Enzyme and pathway databases | |
| Pathway_Interaction_DB | hif1apathway. Hypoxic and oxygen homeostasis regulation of HIF-1-alpha. |
| Reactome | REACT_120956. Cellular responses to stress. |
Gene expression databases | |
| ArrayExpress | Q9Y2N7. |
| Bgee | Q9Y2N7. |
| CleanEx | HS_HIF3A. |
| Genevestigator | Q9Y2N7. |
Family and domain databases | |
| InterPro | IPR011598. bHLH_dom. IPR021537. HIF_alpha_subunit. IPR001610. PAC. IPR000014. PAS. IPR013767. PAS_fold. IPR013655. PAS_fold_3. [Graphical view] |
| Pfam | PF11413. HIF-1. 1 hit. PF00989. PAS. 1 hit. PF08447. PAS_3. 1 hit. [Graphical view] |
| SMART | SM00353. HLH. 1 hit. SM00086. PAC. 1 hit. SM00091. PAS. 2 hits. [Graphical view] |
| SUPFAM | SSF47459. HLH_basic. 1 hit. |
| TIGRFAMs | TIGR00229. sensory_box. 1 hit. |
| PROSITE | PS50888. BHLH. 1 hit. PS50112. PAS. 2 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| GenomeRNAi | 64344. |
| NextBio | 66283. |
| SOURCE | Search... |
Entry information
| Entry name | HIF3A_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q9Y2N7 Secondary accession number(s): B0M185 Q9HAI2 | ||||||||
| Entry history |
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| Entry status | 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. | ||||||||
Relevant documents
| Human chromosome 19 Human chromosome 19: 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 |
| SIMILARITY comments Index of protein domains and families |

Clusters with
