39S ribosomal protein L19, mitochondrial is a protein that in humans is encoded by the MRPL19gene.[1][2][3]
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.[3]
References
↑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. PMID11543634.
↑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. PMID17309879.
Nagase T, Miyajima N, Tanaka A, et al. (1995). "Prediction of the coding sequences of unidentified human genes. III. The coding sequences of 40 new genes (KIAA0081-KIAA0120) deduced by analysis of cDNA clones from human cell line KG-1". DNA Res. 2 (1): 37–43. doi:10.1093/dnares/2.1.37. PMID7788527.
Graack HR, Bryant ML, O'Brien TW (2000). "Identification of mammalian mitochondrial ribosomal proteins (MRPs) by N-terminal sequencing of purified bovine MRPs and comparison to data bank sequences: the large subribosomal particle". Biochemistry. 38 (50): 16569–77. doi:10.1021/bi991543s. PMID10600119.
Hoja MR, Wahlestedt C, Höög C (2000). "A visual intracellular classification strategy for uncharacterized human proteins". Exp. Cell Res. 259 (1): 239–46. doi:10.1006/excr.2000.4948. PMID10942595.
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. PMID11279069.
Zhang Z, Gerstein M (2003). "Identification and characterization of over 100 mitochondrial ribosomal protein pseudogenes in the human genome". Genomics. 81 (5): 468–80. doi:10.1016/S0888-7543(03)00004-1. PMID12706105.
Hillier LW, Graves TA, Fulton RS, et al. (2005). "Generation and annotation of the DNA sequences of human chromosomes 2 and 4". Nature. 434 (7034): 724–31. doi:10.1038/nature03466. PMID15815621.
