MRPL20

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Mitochondrial ribosomal protein L20
PDB rendering based on 2ftc.
Available structures: 2ftc
Identifiers
Symbol(s) MRPL20; L20mt; MGC4779; MGC74465; MRPL20
External IDs HomoloGene: 87869
Orthologs
Human Mouse
Entrez 55052 n/a


Refseq NM_017971 (mRNA)
NP_060441 (protein)		 n/a (mRNA)
n/a (protein)
Pubmed search [1] n/a

Mitochondrial ribosomal protein L20, also known as MRPL20, is a human gene.[1]

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. A pseudogene corresponding to this gene is found on chromosome 21q.[1]

[edit] References

  1. ^ a b Entrez Gene: MRPL20 mitochondrial ribosomal protein L20.

[edit] Further reading

  • Venter JC, Adams MD, Myers EW, et al. (2001). "The sequence of the human genome.". Science 291 (5507): 1304-51. doi:10.1126/science.1058040. PMID 11181995. 
  • Suzuki T, Terasaki M, Takemoto-Hori C, et al. (2001). "Structural compensation for the deficit of rRNA with proteins in the mammalian mitochondrial ribosome. Systematic analysis of protein components of the large ribosomal subunit from mammalian mitochondria.". J. Biol. Chem. 276 (24): 21724-36. doi:10.1074/jbc.M100432200. PMID 11279069. 
  • Kenmochi N, Suzuki T, Uechi T, et al. (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. 
  • Koc EC, Burkhart W, Blackburn K, et al. (2001). "The large subunit of the mammalian mitochondrial ribosome. Analysis of the complement of ribosomal proteins present.". J. Biol. Chem. 276 (47): 43958-69. doi:10.1074/jbc.M106510200. PMID 11551941. 
  • Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899-903. doi:10.1073/pnas.242603899. PMID 12477932. 
  • Zhang Z, Gerstein M (2003). "Identification and characterization of over 100 mitochondrial ribosomal protein pseudogenes in the human genome.". Genomics 81 (5): 468-80. PMID 12706105. 
  • Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs.". Nat. Genet. 36 (1): 40-5. doi:10.1038/ng1285. PMID 14702039. 
  • Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).". Genome Res. 14 (10B): 2121-7. doi:10.1101/gr.2596504. PMID 15489334. 
  • Stelzl U, Worm U, Lalowski M, et al. (2005). "A human protein-protein interaction network: a resource for annotating the proteome.". Cell 122 (6): 957-68. doi:10.1016/j.cell.2005.08.029. PMID 16169070. 
  • Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1.". Nature 441 (7091): 315-21. doi:10.1038/nature04727. PMID 16710414. 
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