TRMU gene

tRNA mitochondrial 2-thiouridylase

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

This nuclear gene encodes a mitochondrial tRNA-modifying enzyme. The encoded protein catalyzes the 2-thiolation of uridine on the wobble positions of tRNA(Lys), tRNA(Glu), and tRNA(Gln), resulting in the formation of 5-taurinomethyl-2-thiouridine moieties. Mutations in this gene may cause transient infantile liver failure. Polymorphisms in this gene may also influence the severity of deafness caused by mitochondrial 12S ribosomal RNA mutations. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

From UniProt:

Catalyzes the 2-thiolation of uridine at the wobble position (U34) of mitochondrial tRNA(Lys), tRNA(Glu) and tRNA(Gln). Required for the formation of 5-taurinomethyl-2-thiouridine (tm5s2U) of mitochondrial tRNA(Lys), tRNA(Glu), and tRNA(Gln) at the wobble position. ATP is required to activate the C2 atom of the wobble base.

Covered on Genetics Home Reference:

From NCBI Gene:

  • Aminoglycoside-induced deafness
  • Acute infantile liver failure due to synthesis defect of mtDNA-encoded proteins

From UniProt:

Deafness, aminoglycoside-induced (DFNI): A form of sensorineural deafness characterized by moderate-to-profound hearing loss and mitochondrial inheritance. It is induced by exposure to aminoglycosides. [MIM:580000]

Liver failure, infantile, transient (LFIT): A transient disorder of hepatic function characterized by elevated liver enzymes, jaundice, vomiting, coagulopathy, hyperbilirubinemia, increased serum lactate. Patients who survive the initial acute episode can recover, show normal development and have no recurrence. [MIM:613070]

Cytogenetic Location: 22q13.31, which is the long (q) arm of chromosome 22 at position 13.31

Molecular Location: base pairs 46,335,714 to 46,357,340 on chromosome 22 (Homo sapiens Updated Annotation Release 109.20200522, GRCh38.p13) (NCBI)

Cytogenetic Location: 22q13.31, which is the long (q) arm of chromosome 22 at position 13.31
  • LCAL3
  • MTO2
  • MTU1
  • TRMT
  • TRMT1