Seroatlas · Human Serome Atlas

TFB1M

Dimethyladenosine transferase 1, mitochondrial

Also known as: CGI-75, mtTFB, TFB1M_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q8WVM0
Gene
TFB1M
Ensembl
ENSG00000029639
Chromosome
6
Canonical length
346 aa
Protein class
Disease related genes, Predicted intracellular proteins

OverviewNCBI Gene

The protein encoded by this gene is a dimethyltransferase that methylates the conserved stem loop of mitochondrial 12S rRNA. The encoded protein also is part of the basal mitochondrial transcription complex and is necessary for mitochondrial gene expression. The methylation and transcriptional activities of this protein are independent of one another. Variations in this gene may influence the severity of aminoglycoside-induced deafness (AID).[provided by RefSeq, Aug 2010]

Canonical amino-acid sequenceUniProt

346 residues, UniProt reviewed canonical sequence.

>Q8WVM0|TFB1M
     1  MAASGKLSTC RLPPLPTIRE IIKLLRLQAA KQLSQNFLLD LRLTDKIVRK AGNLTNAYVY
    61  EVGPGPGGIT RSILNADVAE LLVVEKDTRF IPGLQMLSDA APGKLRIVHG DVLTFKVEKA
   121  FSESLKRPWE DDPPNVHIIG NLPFSVSTPL IIKWLENISC RDGPFVYGRT QMTLTFQKEV
   181  AERLAANTGS KQRSRLSVMA QYLCNVRHIF TIPGQAFVPK PEVDVGVVHF TPLIQPKIEQ
   241  PFKLVEKVVQ NVFQFRRKYC HRGLRMLFPE AQRLESTGRL LELADIDPTL RPRQLSISHF
   301  KSLCDVYRKM CDEDPQLFAY NFREELKRRK SKNEEKEEDD AENYRL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against TFB1M 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)
0.26
Highest tissue expression
9.4 nTPM

Expression across tissuesHPA

Tissue

  • cerebral cortex: 9.4 nTPM
  • skeletal muscle: 9.4 nTPM
  • adrenal gland: 8.6 nTPM
  • heart muscle: 6.9 nTPM
  • liver: 6.7 nTPM
  • testis: 6.7 nTPM

Single-cell type

  • early spermatids: 236 nCPM
  • late primary spermatocytes: 207 nCPM
  • sertoli cells: 142 nCPM
  • adrenal cortex cells: 121 nCPM
  • pituicytes/fscs: 101 nCPM
  • retinal horizontal cells: 96 nCPM

Immune cell

  • naive CD4 T-cell: 7.9 nTPM
  • T-reg: 7.8 nTPM
  • memory B-cell: 7.6 nTPM
  • naive B-cell: 7.1 nTPM
  • NK-cell: 6.7 nTPM
  • myeloid DC: 6.5 nTPM

Brain region

  • cerebral cortex: 12 nTPM
  • cerebellum: 9.5 nTPM
  • basal ganglia: 8.8 nTPM
  • white matter: 8.6 nTPM
  • thalamus: 7.3 nTPM
  • hypothalamus: 7.2 nTPM

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)
1.4
gnomAD pLI
0
gnomAD missense Z
0.15
DepMap mean gene effect
-0.26
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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of TFB1M 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 TFB1M as an antibody target. Whether an autoantibody or antibody against TFB1M could matter depends on whether native TFB1M is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

TFB1M 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 TFB1M as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/TFB1M. 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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