Mitochondrial ribosomal protein L32

39S ribosomal protein L32, mitochondrial is a protein that in humans is encoded by the MRPL32 gene.

MRPL32
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 3J7Y, 3J9M
Identifiers
Aliases	MRPL32, L32mt, MRP-L32, bMRP-59b, HSPC283, mitochondrial ribosomal protein L32
External IDs	OMIM: 611839; MGI: 2137226; HomoloGene: 32711; GeneCards: MRPL32; OMA:MRPL32 - orthologs
Gene location (Human) Chr. Chromosome 7 (human) Band 7p14.1 Start 42,932,376 bp End 42,948,958 bp
Gene location (Mouse) Chr. Chromosome 13 (mouse) Band 13|13 A1 Start 14,782,769 bp End 14,787,750 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in oocyte myocardium of left ventricle cardia pancreatic epithelial cell right ventricle renal medulla pylorus cardiac muscle tissue of right atrium left adrenal gland metanephros Top expressed in interventricular septum medial ganglionic eminence migratory enteric neural crest cell atrioventricular valve olfactory epithelium endocardial cushion myocardium of ventricle abdominal wall soleus muscle intercostal muscle More reference expression data BioGPS n/a
Gene ontology Molecular function structural constituent of ribosome RNA binding Cellular component mitochondrial inner membrane large ribosomal subunit ribosome mitochondrial ribosome mitochondrion mitochondrial large ribosomal subunit Biological process mitochondrial translational elongation mitochondrial translational termination protein biosynthesis Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 64983 75398 Ensembl ENSG00000106591 ENSMUSG00000015672 UniProt Q9BYC8 Q9DCI9 RefSeq (mRNA) NM_031903 NM_029271 RefSeq (protein) NP_114109 NP_083547 Location (UCSC) Chr 7: 42.93 – 42.95 Mb Chr 13: 14.78 – 14.79 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

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 L32 ribosomal protein family. A pseudogene corresponding to this gene is found on chromosome Xp.

Further reading

• Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Res. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
• 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.
• 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.
• Bommel H, Xie G, Rossoll W, et al. (2003). "Missense mutation in the tubulin-specific chaperone E (Tbce) gene in the mouse mutant progressive motor neuronopathy, a model of human motoneuron disease". J. Cell Biol. 159 (4): 563–9. doi:10.1083/jcb.200208001. PMC 2173089. PMID 12446740.
• 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. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Scherer SW, Cheung J, MacDonald JR, et al. (2003). "Human chromosome 7: DNA sequence and biology". Science. 300 (5620): 767–72. Bibcode:2003Sci...300..767S. doi:10.1126/science.1083423. PMC 2882961. PMID 12690205.
• 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. 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. PMC 528928. PMID 15489334.
• Oh JH, Yang JO, Hahn Y, et al. (2006). "Transcriptome analysis of human gastric cancer". Mamm. Genome. 16 (12): 942–54. doi:10.1007/s00335-005-0075-2. PMID 16341674. S2CID 69278.