39S ribosomal protein L39, mitochondrial is a
protein that in humans is encoded by the MRPL39gene.[5][6]
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. Two
transcript variants encoding distinct
isoforms have been described. A
pseudogene corresponding to this gene is found on chromosome 5q.[6]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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PMID11167009.
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PMID11943462.
Zhang Z, Gerstein M (2003). "Identification and characterization of over 100 mitochondrial ribosomal protein pseudogenes in the human genome". Genomics. 81 (5): 468–80.
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