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PBB Protein MRPL11 image.jpg
Available structures
PDB Ortholog search: PDBe RCSB
Aliases MRPL19, L19mt, MRP-L15, MRP-L19, MRPL15, RLX1, RPML15, mitochondrial ribosomal protein L19
External IDs MGI: 1926274 HomoloGene: 8851 GeneCards: MRPL19
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 2: 75.65 – 75.69 Mb Chr 6: 81.96 – 81.97 Mb
PubMed search [1] [2]
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39S ribosomal protein L19, mitochondrial is a protein that in humans is encoded by the MRPL19 gene.[3][4][5]

Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 39S subunit protein.[5]


  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ Kenmochi N, Suzuki T, Uechi T, Magoori M, Kuniba M, Higa S, Watanabe K, Tanaka T (Sep 2001). "The human mitochondrial ribosomal protein genes: mapping of 54 genes to the chromosomes and implications for human disorders". Genomics. 77 (1–2): 65–70. doi:10.1006/geno.2001.6622. PMID 11543634. 
  4. ^ Anthoni H, Zucchelli M, Matsson H, Muller-Myhsok B, Fransson I, Schumacher J, Massinen S, Onkamo P, Warnke A, Griesemann H, Hoffmann P, Nopola-Hemmi J, Lyytinen H, Schulte-Korne G, Kere J, Nothen MM, Peyrard-Janvid M (Apr 2007). "A locus on 2p12 containing the co-regulated MRPL19 and C2ORF3 genes is associated to dyslexia". Hum Mol Genet. 16 (6): 667–77. doi:10.1093/hmg/ddm009. PMID 17309879. 
  5. ^ a b "Entrez Gene: MRPL19 mitochondrial ribosomal protein L19". 

Further reading[edit]