Seroatlas · Human Serome Atlas

TFAP2A

Transcription factor AP-2-alpha

Also known as: AP-2, AP-2alpha, AP2A_HUMAN, AP2TF, TFAP2

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
P05549
Gene
TFAP2A
Ensembl
ENSG00000137203
Chromosome
6
Canonical length
437 aa
Protein class
Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
Subcellular location
Nucleoplasm
Quaternary structure
Homodimer

OverviewNCBI Gene

The protein encoded by this gene is a transcription factor that binds the consensus sequence 5'-GCCNNNGGC-3'. The encoded protein functions as either a homodimer or as a heterodimer with similar family members. This protein activates the transcription of some genes while inhibiting the transcription of others. Defects in this gene are a cause of branchiooculofacial syndrome (BOFS). Three transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Dec 2009]

Canonical amino-acid sequenceUniProt

437 residues, UniProt reviewed canonical sequence.

>P05549|TFAP2A
     1  MLWKLTDNIK YEDCEDRHDG TSNGTARLPQ LGTVGQSPYT SAPPLSHTPN ADFQPPYFPP
    61  PYQPIYPQSQ DPYSHVNDPY SLNPLHAQPQ PQHPGWPGQR QSQESGLLHT HRGLPHQLSG
   121  LDPRRDYRRH EDLLHGPHAL SSGLGDLSIH SLPHAIEEVP HVEDPGINIP DQTVIKKGPV
   181  SLSKSNSNAV SAIPINKDNL FGGVVNPNEV FCSVPGRLSL LSSTSKYKVT VAEVQRRLSP
   241  PECLNASLLG GVLRRAKSKN GGRSLREKLD KIGLNLPAGR RKAANVTLLT SLVEGEAVHL
   301  ARDFGYVCET EFPAKAVAEF LNRQHSDPNE QVTRKNMLLA TKQICKEFTD LLAQDRSPLG
   361  NSRPNPILEP GIQSCLTHFN LISHGFGSPA VCAAVTALQN YLTEALKAMD KMYLSNNPNS
   421  HTDNNAKSSD KEEKHRK

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against TFAP2A can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.53
Highest tissue expression
63 nTPM

Expression across tissuesHPA

Tissue

  • skin: 63 nTPM
  • breast: 31 nTPM
  • placenta: 28 nTPM
  • esophagus: 26 nTPM
  • salivary gland: 22 nTPM
  • epididymis: 21 nTPM

Single-cell type

  • syncytiotrophoblasts: 884 nCPM
  • melanocytes: 388 nCPM
  • extravillous trophoblasts: 369 nCPM
  • cytotrophoblasts: 345 nCPM
  • migrating cytotrophoblasts: 324 nCPM
  • retinal amacrine cells: 176 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • cerebellum: 9.3 nTPM
  • medulla oblongata: 7.2 nTPM
  • pons: 4.9 nTPM
  • midbrain: 3.3 nTPM
  • white matter: 1.7 nTPM
  • cerebral cortex: 1.5 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about TFAP2A.

Disease | AllUniProt

Conditions TFAP2A is implicated in, by any mechanism.

Disease | GeneticClinVar

52 pathogenic / likely-pathogenic of 318 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.26
gnomAD pLI
0.99
gnomAD missense Z
2.59
DepMap mean gene effect
-0.07
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of TFAP2A in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads TFAP2A as an antibody target. Whether an autoantibody or antibody against TFAP2A could matter depends on whether native TFAP2A is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

TFAP2A is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label TFAP2A as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/TFAP2A. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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