Mitochondrial ribosomal protein L3

Last updated

MRPL3
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases MRPL3 , COXPD9, MRL3, RPML3, mitochondrial ribosomal protein L3
External IDs OMIM: 607118; MGI: 2137204; HomoloGene: 31431; GeneCards: MRPL3; OMA:MRPL3 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_007208

NM_053159
NM_001364512
NM_001364513

RefSeq (protein)

NP_009139

NP_444389
NP_001351441
NP_001351442

Location (UCSC) Chr 3: 131.46 – 131.5 Mb Chr 9: 104.93 – 104.96 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Mitochondrial ribosomal protein L3 is a protein that in humans is encoded by the MRPL3 gene. [5] The MRPL3 gene encodes a protein of the 39S large subunit of the mitoribosome, which belongs to the L3P ribosomal protein family. Additionally, a pseudogene corresponding to this gene is located on chromosome 13q. [provided by RefSeq, Jul 2008]. [5]

Contents

Mitoribosome

Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and play a crucial role in protein synthesis within the mitochondrion. Mitoribosomes consist of a small 28S subunit and a large 39S subunit. Unlike prokaryotic ribosomes, mitoribosomes are composed of approximately 75% protein and 25% rRNA, whereas this ratio is reversed in prokaryotic ribosomes. Another key difference is the absence of 5S rRNA in mammalian mitoribosomes, which is present in their prokaryotic counterparts. The proteins that comprise the mitoribosome differ greatly in sequence and, in some cases, in biochemical properties across different species. This variability complicates identification by sequence homology.

Clinical relevance

Mutations in this gene have been shown to cause mitochondrial cardiomyopathy. [6]

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000114686 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000032563 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. 1 2 "Entrez Gene: Mitochondrial ribosomal protein L3" . Retrieved 2011-12-30.
  6. Galmiche L, Serre V, Beinat M, Assouline Z, Lebre AS, Chretien D, et al. (November 2011). "Exome sequencing identifies MRPL3 mutation in mitochondrial cardiomyopathy". Human Mutation. 32 (11): 1225–1231. doi: 10.1002/humu.21562 . PMID   21786366. S2CID   46713472.

Further reading