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TFB1M

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TFB1M
Identifiers
AliasesTFB1M, CGI75, mtTFB, mtTFB1, CGI-75, transcription factor B1, mitochondrial
External IDsOMIM: 607033; MGI: 2146851; GeneCards: TFB1M
Available structures
PDBOrtholog search: PDBe RCSB
Orthologs
DatabasesNCBI: entry; OMA: entry
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_016020
NM_001350501
NM_001350502

NM_146074

RefSeq (protein)

NP_057104
NP_001337430
NP_001337431

NP_666186

Location (UCSC)Chr 6: 155.26 – 155.31 MbChr 17: 3.57 – 3.61 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Dimethyladenosine transferase 1, mitochondrial; Transcription factor B1, mitochondrial is a mitochondrial enzyme that is encoded by the TFB1M gene.[5][6][7]

TFB1M is a mitochondrial methyltransferase, which uses S-adenosyl methionine to dimethylate two highly conserved adenosine residues at the 3'-end of the mitochondrial 12S rRNA thereby regulating the assembly or stability of the small subunit of the mitochondrial ribosome.[6][8][9]

Additionally, TFB1M has been demonstrated to stimulate transcription from promoter templates in an in vitro system containing recombinant mitochondrial RNA polymerase and TFAM.[8] There are no experimental data demonstrating that this function occurs in vivo; the paralogous TFB2M is more specific for this role.[10]

Interactions

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TFB1M has been shown to interact with TFAM.[11]

References

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  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000029639 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000036983 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Lai CH, Chou CY, Ch'ang LY, Liu CS, Lin W (August 2000). "Identification of novel human genes evolutionarily conserved in Caenorhabditis elegans by comparative proteomics". Genome Research. 10 (5): 703–713. doi:10.1101/gr.10.5.703. PMC 310876. PMID 10810093.
  6. 1 2 McCulloch V, Seidel-Rogol BL, Shadel GS (January 2002). "A human mitochondrial transcription factor is related to RNA adenine methyltransferases and binds S-adenosylmethionine". Molecular and Cellular Biology. 22 (4): 1116–1125. doi:10.1128/MCB.22.4.1116-1125.2002. PMC 134642. PMID 11809803.
  7. "Entrez Gene: TFB1M transcription factor B1, mitochondrial".
  8. 1 2 Falkenberg M, Gaspari M, Rantanen A, Trifunovic A, Larsson NG, Gustafsson CM (July 2002). "Mitochondrial transcription factors B1 and B2 activate transcription of human mtDNA". Nature Genetics. 31 (3): 289–294. doi:10.1038/ng909. PMID 12068295. S2CID 11164308.
  9. Metodiev MD, Lesko N, Park CB, Cámara Y, Shi Y, Wibom R, et al. (April 2009). "Methylation of 12S rRNA is necessary for in vivo stability of the small subunit of the mammalian mitochondrial ribosome". Cell Metabolism. 9 (4): 386–397. doi:10.1016/j.cmet.2009.03.001. PMID 19356719.
  10. Hillen HS, Morozov YI, Sarfallah A, Temiakov D, Cramer P (November 2017). "Structural Basis of Mitochondrial Transcription Initiation". Cell. 171 (5): 1072–1081.e10. doi:10.1016/j.cell.2017.10.036. PMC 6590061. PMID 29149603.
  11. McCulloch V, Shadel GS (August 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". Molecular and Cellular Biology. 23 (16): 5816–5824. doi:10.1128/MCB.23.16.5816-5824.2003. PMC 166325. PMID 12897151.

Further reading

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