TAF13
Transcription initiation factor TFIID subunit 13
Also known as: TAF13_HUMAN, TAF2K, TAFII18
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q15543
- Gene
- TAF13
- Ensembl
- ENSG00000197780
- Chromosome
- 1
- Canonical length
- 124 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Nucleoli
OverviewNCBI Gene
Initiation of transcription by RNA polymerase II requires the activities of more than 70 polypeptides. The protein that coordinates these activities is transcription factor IID (TFIID), which binds to the core promoter to position the polymerase properly, serves as the scaffold for assembly of the remainder of the transcription complex, and acts as a channel for regulatory signals. TFIID is composed of the TATA-binding protein (TBP) and a group of evolutionarily conserved proteins known as TBP-associated factors or TAFs. TAFs may participate in basal transcription, serve as coactivators, function in promoter recognition or modify general transcription factors (GTFs) to facilitate complex assembly and transcription initiation. This gene encodes a small subunit associated with a subset of TFIID complexes. This subunit interacts with TBP and with two other small subunits of TFIID, TAF10 and TAF11. There is a pseudogene located on chromosome 6. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
124 residues, UniProt reviewed canonical sequence.
>Q15543|TAF13
1 MADEEEDPTF EEENEEIGGG AEGGQGKRKR LFSKELRCMM YGFGDDQNPY TESVDILEDL
61 VIEFITEMTH KAMSIGRQGR VQVEDIVFLI RKDPRKFARV KDLLTMNEEL KRARKAFDEA
121 NYGSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against TAF13 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)
- 0.49
- Highest tissue expression
- 90 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 90 nTPM
- bone marrow: 59 nTPM
- tongue: 57 nTPM
- adipose tissue: 45 nTPM
- kidney: 40 nTPM
- urinary bladder: 40 nTPM
Single-cell type
- neutrophils: 203 nCPM
- esophageal apical cells: 108 nCPM
- syncytiotrophoblasts: 94 nCPM
- endometrial glandular cells: 86 nCPM
- suprabasal keratinocytes: 81 nCPM
- neutrophil progenitors: 80 nCPM
Immune cell
- basophil: 19 nTPM
- non-classical monocyte: 13 nTPM
- intermediate monocyte: 10 nTPM
- plasmacytoid DC: 9.6 nTPM
- neutrophil: 9.4 nTPM
- classical monocyte: 9.3 nTPM
Brain region
- spinal cord: 67 nTPM
- thalamus: 63 nTPM
- pons: 59 nTPM
- white matter: 57 nTPM
- medulla oblongata: 56 nTPM
- midbrain: 56 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about TAF13.
Disease | AllUniProt
Conditions TAF13 is implicated in, by any mechanism.
- Intellectual developmental disorder, autosomal recessive 60 (MRT60) MIM:617432
Disease | GeneticClinVar
3 pathogenic / likely-pathogenic of 18 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Intellectual disability, autosomal recessive 60
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)
- 1.09
- gnomAD pLI
- 0.02
- gnomAD missense Z
- 1.26
- DepMap mean gene effect
- -0.49
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- DNA-templated transcription initiation
- mRNA transcription by RNA polymerase II
- positive regulation of transcription initiation by RNA polymerase II
- RNA polymerase II preinitiation complex assembly
- transcription by RNA polymerase II
- transcription initiation at RNA polymerase II promoter
Molecular functions
- DNA binding
- protein heterodimerization activity
- RNA polymerase II general transcription initiation factor activity
- TBP-class protein binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of TAF13 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 TAF13 as an antibody target. Whether an autoantibody or antibody against TAF13 could matter depends on whether native TAF13 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TAF13 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 TAF13 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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