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MRPL22 mitochondrial ribosomal protein L22

Gene ID: 29093, updated on 19-Sep-2024
Gene type: protein coding
Also known as: L22mt; uL22m; RPML25; HSPC158; MRP-L22; MRP-L25

Summary

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 that belongs to the L22 ribosomal protein family. A pseudogene corresponding to this gene is found on chromosome 4q. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genomic context

Location:
5q33.2
Sequence:
Chromosome: 5; NC_000005.10 (154941073..154969411)
Total number of exons:
7

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