TFAM

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TFAM
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases TFAM, MTTF1, MTTFA, TCF6, TCF6L1, TCF6L2, TCF6L3, transcription factor A, mitochondrial
External IDs MGI: 107810 HomoloGene: 31139 GeneCards: TFAM
RNA expression pattern
PBB GE TFAM 203176 s at fs.png

PBB GE TFAM 208541 x at fs.png

PBB GE TFAM 203177 x at fs.png
More reference expression data
Orthologs
Species Human Mouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001270782
NM_003201
NM_012251

NM_009360

RefSeq (protein)

NP_001257711
NP_003192

NP_033386.1
NP_033386

Location (UCSC) Chr 10: 58.39 – 58.4 Mb Chr 10: 71.23 – 71.24 Mb
PubMed search [1] [2]
Wikidata
View/Edit Human View/Edit Mouse

Mitochondrial transcription factor A, abbreviated as TFAM or mtTFA, is a protein that in humans is encoded by the TFAM gene.[3][4]

Function[edit]

This gene encodes a mitochondrial transcription factor that is a key activator of mitochondrial transcription as well as a participant in mitochondrial genome replication. TFAM binds mitochondrial promoter DNA to aid transcription of the mitochondrial genome. Studies in mice have demonstrated that this gene product is required to regulate the mitochondrial genome copy number and is essential for embryonic development. A mouse model for Kearns-Sayre syndrome was produced when expression of this gene was eliminated by targeted disruption in heart and muscle cells.[4] TFAM is a double box High-mobility group DNA-binding and bending protein.[5]

Interactions[edit]

TFAM has been shown to interact with TFB1M.[6]

References[edit]

  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ Tiranti V, Rossi E, Ruiz-Carrillo A, Rossi G, Rocchi M, DiDonato S, Zuffardi O, Zeviani M (Jul 1995). "Chromosomal localization of mitochondrial transcription factor A (TCF6), single-stranded DNA-binding protein (SSBP), and endonuclease G (ENDOG), three human housekeeping genes involved in mitochondrial biogenesis". Genomics. 25 (2): 559–64. doi:10.1016/0888-7543(95)80058-T. PMID 7789991. 
  4. ^ a b "Entrez Gene: TFAM transcription factor A, mitochondrial". 
  5. ^ Murugesapillai D, McCauley MJ, Maher LJ, Williams MC (15 November 2016). "Single-molecule studies of high-mobility group B architectural DNA bending proteins". Biophysical Reviews. doi:10.1007/s12551-016-0236-4. 
  6. ^ McCulloch V, Shadel GS (Aug 2003). "Human mitochondrial transcription factor B1 interacts with the C-terminal activation region of h-mtTFA and stimulates transcription independently of its RNA methyltransferase activity". Mol. Cell. Biol. 23 (16): 5816–24. doi:10.1128/MCB.23.16.5816-5824.2003. PMC 166325Freely accessible. PMID 12897151. 

Further reading[edit]