P05549 (AP2A_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 139.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Transcription factor AP-2-alpha Short name=AP2-alpha Alternative name(s): AP-2 transcription factor Activating enhancer-binding protein 2-alpha Activator protein 2 Short name=AP-2 | ||||
| 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 | 437 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Sequence-specific DNA-binding protein that interacts with inducible viral and cellular enhancer elements to regulate transcription of selected genes. AP-2 factors bind to the consensus sequence 5'-GCCNNNGGC-3' and activate genes involved in a large spectrum of important biological functions including proper eye, face, body wall, limb and neural tube development. They also suppress a number of genes including MCAM/MUC18, C/EBP alpha and MYC. AP-2-alpha is the only AP-2 protein required for early morphogenesis of the lens vesicle. Together with the CITED2 coactivator, stimulates the PITX2 P1 promoter transcription activation. Associates with chromatin to the PITX2 P1 promoter region. Ref.9 Ref.12 |
| Subunit structure | Binds DNA as a dimer. Can form homodimers or heterodimers with other AP-2 family members. Interacts with WWOX. Interacts with CITED4. Interacts with UBE2I. Interacts with RALBP1 in a complex also containing EPN1 and NUMB during interphase and mitosis. Interacts with KCTD1; this interaction represses transcription activation. Interacts (via C-terminus) with CITED2 (via C-terminus); the interaction stimulates TFAP2A-transcriptional activation. Interacts (via N-terminus) with EP300 (via N-terminus); the interaction requires CITED2. Ref.6 Ref.9 Ref.10 Ref.11 Ref.12 Ref.13 Ref.14 Ref.16 |
| Subcellular location | |
| Domain | The WW-binding motif mediates interaction with WWOX By similarity. Ref.14 |
| Post-translational modification | Sumoylated on Lys-10; which inhibits transcriptional activity Probable. Ref.11 |
| Involvement in disease | Branchiooculofacial syndrome (BOFS) [MIM:113620]: A syndrome characterized by growth retardation, bilateral branchial sinus defects with hemangiomatous, scarred skin, cleft lip with or without cleft palate, pseudocleft of the upper lip, nasolacrimal duct obstruction, low set ears with posterior rotation, a malformed, asymmetrical nose with a broad bridge and flattened tip, conductive or sensorineural deafness, ocular and renal anomalies. |
| Sequence similarities | Belongs to the AP-2 family. |
Ontologies
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| EP300 | Q09472 | 7 | EBI-347351,EBI-447295 |
Alternative products
| This entry describes 3 isoforms produced by alternative splicing. [Align] [Select] Note: Experimental confirmation may be lacking for some isoforms. | ||||||
| Isoform 1 (identifier: P05549-1) Also known as: AP-2A; 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: P05549-5) The sequence of this isoform differs from the canonical sequence as follows: 1-15: MLWKLTDNIKYEDCE → MLVHSFSAM | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 4 (identifier: P05549-2) Also known as: AP-2B; The sequence of this isoform differs from the canonical sequence as follows: 296-437: EAVHLARDFG...SSDKEEKHRK → KRIHLLTRRN...SILLPSFPLP | ||||||
| Note: May be an aberrantly processed form with no significant distribution in vivo. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 437 | 437 | Transcription factor AP-2-alpha | PRO_0000184796 | |||||
Regions | |||||||||
| Region | 280 – 410 | 131 | H-S-H (helix-span-helix), dimerization | ||||||
| Motif | 57 – 62 | 6 | WW-binding | ||||||
| Compositional bias | 29 – 117 | 89 | Gln/Pro-rich (transactivation domain) | ||||||
Amino acid modifications | |||||||||
| Modified residue | 239 | 1 | Phosphoserine; by PKA | ||||||
| Cross-link | 10 | Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO) Probable | |||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 15 | 15 | MLWKL…YEDCE → MLVHSFSAM in isoform 2. | VSP_043268 | |||||
| Alternative sequence | 296 – 437 | 142 | EAVHL…EKHRK → KRIHLLTRRNFLLGKWIIFS GQMFGRILCQLGSFIFAENI ARCEWNYFMAKRNICMYSYT SILLPSFPLP in isoform 4. | VSP_006401 | |||||
| Natural variant | 249 | 1 | L → P in BOFS. Ref.17 | VAR_045838 | |||||
| Natural variant | 254 | 1 | R → G in BOFS. Ref.17 | VAR_045839 | |||||
| Natural variant | 255 | 1 | R → G in BOFS. Ref.17 | VAR_045840 | |||||
| Natural variant | 262 | 1 | G → E in BOFS. Ref.17 | VAR_045841 | |||||
Experimental info | |||||||||
| Mutagenesis | 239 | 1 | S → A: No phosphorylation. Ref.8 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning and expression of AP-2, a cell-type-specific transcription factor that activates inducible enhancer elements." Williams T., Admon A., Luescher B., Tjian R. Genes Dev. 2:1557-1569(1988) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA], PARTIAL PROTEIN SEQUENCE. |
| [2] | "An alternatively spliced mRNA from the AP-2 gene encodes a negative regulator of transcriptional activation by AP-2." Buettner R., Kannan P., Imhof A., Bauer R., Yim S.O., Glockshuber R., Van Dyke M.W., Tainsky M.A. Mol. Cell. Biol. 13:4174-4185(1993) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 4). Tissue: Teratocarcinoma. |
| [3] | "The genomic structure of the human AP-2 transcription factor." Bauer R., Imhof A., Pscherer A., Kopp H., Moser M., Seegers S., Kerscher M., Tainsky M.A., Hofstaedter F., Buettner R. Nucleic Acids Res. 22:1413-1420(1994) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]. |
| [4] | "The DNA sequence and analysis of human chromosome 6." Mungall A.J., Palmer S.A., Sims S.K., Edwards C.A., Ashurst J.L., Wilming L., Jones M.C., Horton R., Hunt S.E., Scott C.E., Gilbert J.G.R., Clamp M.E., Bethel G., Milne S., Ainscough R., Almeida J.P., Ambrose K.D., Andrews T.D. Beck S.Nature 425:805-811(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [5] | "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 2). Tissue: Prostate. |
| [6] | "Characterization of a dimerization motif in AP-2 and its function in heterologous DNA-binding proteins." Williams T., Tjian R. Science 251:1067-1071(1991) [PubMed] [Europe PMC] [Abstract] Cited for: SUBUNIT. |
| [7] | "Analysis of the DNA-binding and activation properties of the human transcription factor AP-2." Williams T., Tjian R. Genes Dev. 5:670-682(1991) [PubMed] [Europe PMC] [Abstract] Cited for: DNA-BINDING. |
| [8] | "Transcription factor AP-2 activity is modulated by protein kinase A-mediated phosphorylation." Garcia M.A., Campillos M., Marina A., Valdivieso F., Vazquez J. FEBS Lett. 444:27-31(1999) [PubMed] [Europe PMC] [Abstract] Cited for: MUTAGENESIS OF SER-239, PHOSPHORYLATION. |
| [9] | "Cardiac malformations, adrenal agenesis, neural crest defects and exencephaly in mice lacking Cited2, a new Tfap2 co-activator." Bamforth S.D., Braganca J., Eloranta J.J., Murdoch J.N., Marques F.I., Kranc K.R., Farza H., Henderson D.J., Hurst H.C., Bhattacharya S. Nat. Genet. 29:469-474(2001) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, INTERACTION WITH CITED2. |
| [10] | "Human CREB-binding protein/p300-interacting transactivator with ED-rich tail (CITED) 4, a new member of the CITED family, functions as a co-activator for transcription factor AP-2." Braganca J., Swingler T., Marques F.I.R., Jones T., Eloranta J.J., Hurst H.C., Shioda T., Bhattacharya S. J. Biol. Chem. 277:8559-8565(2002) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH CITED4. |
| [11] | "Transcription factor AP-2 interacts with the SUMO-conjugating enzyme UBC9 and is sumolated in vivo." Eloranta J.J., Hurst H.C. J. Biol. Chem. 277:30798-30804(2002) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH UBE2I, SUMOYLATION AT LYS-10. |
| [12] | "Physical and functional interactions among AP-2 transcription factors, p300/CREB-binding protein, and CITED2." Braganca J., Eloranta J.J., Bamforth S.D., Ibbitt J.C., Hurst H.C., Bhattacharya S. J. Biol. Chem. 278:16021-16029(2003) [PubMed] [Europe PMC] [Abstract] Cited for: FUNCTION, SUBCELLULAR LOCATION, DNA-BINDING, INTERACTION WITH CITED2 AND EP300. |
| [13] | "RLIP, an effector of the Ral GTPases, is a platform for Cdk1 to phosphorylate epsin during the switch off of endocytosis in mitosis." Rosse C., L'Hoste S., Offner N., Picard A., Camonis J. J. Biol. Chem. 278:30597-30604(2003) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH RALBP1. |
| [14] | "Physical and functional interactions between the Wwox tumor suppressor protein and the AP-2gamma transcription factor." Aqeilan R.I., Palamarchuk A., Weigel R.J., Herrero J.J., Pekarsky Y., Croce C.M. Cancer Res. 64:8256-8261(2004) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH WWOX, DOMAIN. |
| [15] | "A quantitative atlas of mitotic phosphorylation." Dephoure N., Zhou C., Villen J., Beausoleil S.A., Bakalarski C.E., Elledge S.J., Gygi S.P. Proc. Natl. Acad. Sci. U.S.A. 105:10762-10767(2008) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Cervix carcinoma. |
| [16] | "The interaction of KCTD1 with transcription factor AP-2alpha inhibits its transactivation." Ding X., Luo C., Zhou J., Zhong Y., Hu X., Zhou F., Ren K., Gan L., He A., Zhu J., Gao X., Zhang J. J. Cell. Biochem. 106:285-295(2009) [PubMed] [Europe PMC] [Abstract] Cited for: INTERACTION WITH KCTD1. |
| [17] | "TFAP2A mutations result in branchio-oculo-facial syndrome." Milunsky J.M., Maher T.A., Zhao G., Roberts A.E., Stalker H.J., Zori R.T., Burch M.N., Clemens M., Mulliken J.B., Smith R., Lin A.E. Am. J. Hum. Genet. 82:1171-1177(2008) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANTS BOFS PRO-249; GLY-254; GLY-255 AND GLU-262. |
| + | Additional computationally mapped references. |
Web resources
| Wikipedia Activatin protein 2 entry |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | M36711 mRNA. Translation: AAA35539.1. M61156 mRNA. Translation: AAA02487.1. X52611 mRNA. Translation: CAA36842.1. X77343 Genomic DNA. Translation: CAB59735.1. AL138885 Genomic DNA. Translation: CAI20064.1. BC017754 mRNA. Translation: AAH17754.1. |
| IPI | IPI00181288. IPI00472844. IPI00844409. |
| PIR | A31752. |
| RefSeq | NP_001027451.1. NM_001032280.2. NP_001035890.1. NM_001042425.1. NP_003211.1. NM_003220.2. |
| UniGene | Hs.519880. |
3D structure databases | |
| ProteinModelPortal | P05549. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | P05549. 4 interactions. |
| MINT | MINT-1524309. |
| STRING | 9606.ENSP00000368924. |
PTM databases | |
| PhosphoSite | P05549. |
Polymorphism databases | |
| DMDM | 135302. |
Proteomic databases | |
| PaxDb | P05549. |
| PRIDE | P05549. |
Protocols and materials databases | |
| DNASU | 7020. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000379604; ENSP00000368924; ENSG00000137203. ENST00000379608; ENSP00000368928; ENSG00000137203. ENST00000482890; ENSP00000418541; ENSG00000137203. |
| GeneID | 7020. |
| KEGG | hsa:7020. |
| UCSC | uc003myr.3. human. uc003myu.1. human. |
Organism-specific databases | |
| CTD | 7020. |
| GeneCards | GC06M010393. |
| HGNC | HGNC:11742. TFAP2A. |
| HPA | CAB000326. HPA028850. |
| MIM | 107580. gene. 113620. phenotype. |
| neXtProt | NX_P05549. |
| Orphanet | 1297. Branchio-oculo-facial syndrome. |
| PharmGKB | PA36459. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG300693. |
| HOGENOM | HOG000231737. |
| HOVERGEN | HBG002455. |
| InParanoid | P05549. |
| KO | K09176. |
| PhylomeDB | P05549. |
Enzyme and pathway databases | |
| Pathway_Interaction_DB | caspase_pathway. Caspase cascade in apoptosis. |
Gene expression databases | |
| ArrayExpress | P05549. |
| Bgee | P05549. |
| CleanEx | HS_TFAP2A. |
| Genevestigator | P05549. |
| GermOnline | ENSG00000137203. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR004979. TF_AP2. IPR008121. TF_AP2_alpha_N. IPR013854. TF_AP2_C. [Graphical view] |
| PANTHER | PTHR10812. PTHR10812. 1 hit. |
| Pfam | PF03299. TF_AP-2. 1 hit. [Graphical view] |
| PRINTS | PR01749. AP2ATNSCPFCT. PR01748. AP2TNSCPFCT. |
| ProtoNet | Search... |
Other | |
| ChiTaRS | TFAP2A. human. |
| GenomeRNAi | 7020. |
| NextBio | 27423. |
| PMAP-CutDB | P05549. |
| SOURCE | Search... |
Entry information
| Entry name | AP2A_HUMAN | ||||||||
| Accession | Primary (citable) accession number: P05549 Secondary accession number(s): Q13777, Q8N1C6 | ||||||||
| 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 6 Human chromosome 6: 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
