TFAM
Transcription factor A, mitochondrial
Also known as: TCF6, TCF6L2, TFAM_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q00059
- Gene
- TFAM
- Ensembl
- ENSG00000108064
- Chromosome
- 10
- Canonical length
- 246 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Mitochondria
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes a key mitochondrial transcription factor containing two high mobility group motifs. The encoded protein also functions in mitochondrial DNA replication and repair. Sequence polymorphisms in this gene are associated with Alzheimer's and Parkinson's diseases. There are pseudogenes for this gene on chromosomes 6, 7, and 11. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2012]
Canonical amino-acid sequenceUniProt
246 residues, UniProt reviewed canonical sequence.
>Q00059|TFAM
1 MAFLRSMWGV LSALGRSGAE LCTGCGSRLR SPFSFVYLPR WFSSVLASCP KKPVSSYLRF
61 SKEQLPIFKA QNPDAKTTEL IRRIAQRWRE LPDSKKKIYQ DAYRAEWQVY KEEISRFKEQ
121 LTPSQIMSLE KEIMDKHLKR KAMTKKKELT LLGKPKRPRS AYNVYVAERF QEAKGDSPQE
181 KLKTVKENWK NLSDSEKELY IQHAKEDETR YHNEMKSWEE QMIEVGRKDL LRRTIKKQRK
241 YGAEECLocalizationUniProt · AlphaFold · HPA
Whether an antibody against TFAM 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)
- 0.46
- Highest tissue expression
- 36 nTPM
Expression across tissuesHPA
Tissue
- bone marrow: 36 nTPM
- testis: 31 nTPM
- lymph node: 26 nTPM
- thymus: 23 nTPM
- tonsil: 22 nTPM
- liver: 21 nTPM
Single-cell type
- late spermatids: 1,338 nCPM
- early spermatids: 786 nCPM
- erythrocyte progenitors: 144 nCPM
- cytotrophoblasts: 121 nCPM
- migrating cytotrophoblasts: 118 nCPM
- gastric progenitor cells: 87 nCPM
Immune cell
- NK-cell: 15 nTPM
- plasmacytoid DC: 15 nTPM
- memory B-cell: 13 nTPM
- naive B-cell: 13 nTPM
- naive CD4 T-cell: 12 nTPM
- myeloid DC: 12 nTPM
Brain region
- cerebellum: 25 nTPM
- white matter: 20 nTPM
- cerebral cortex: 20 nTPM
- hypothalamus: 18 nTPM
- spinal cord: 17 nTPM
- choroid plexus: 17 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about TFAM.
Disease | AllUniProt
Conditions TFAM is implicated in, by any mechanism.
- Mitochondrial DNA depletion syndrome 15, hepatocerebral type (MTDPS15) MIM:617156
Disease | GeneticClinVar
2 pathogenic / likely-pathogenic of 105 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Mitochondrial DNA depletion syndrome 15 (hepatocerebral type)
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)
- 0.61
- gnomAD pLI
- 0.17
- gnomAD missense Z
- 1.11
- DepMap mean gene effect
- -0.59
- DepMap dependency class
- common
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
- mitochondrial respiratory chain complex assembly
- mitochondrial transcription
- response to hypoxia
- response to nutrient
- transcription initiation at mitochondrial promoter
Molecular functions
- chromatin binding
- heat shock protein binding
- mitochondrial promoter sequence-specific DNA binding
- mitochondrial transcription factor activity
- RNA binding
- sequence-specific DNA binding
- transcription coactivator binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of TFAM 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 TFAM as an antibody target. Whether an autoantibody or antibody against TFAM could matter depends on whether native TFAM is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TFAM 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 TFAM as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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