MRPL32

From Wikipedia, the free encyclopedia

Mitochondrial ribosomal protein L32

Identifiers

MRPL32; MRP-L32; HSPC283; L32mt; bMRP-59b

External IDs

Gene ontology
Molecular Function:	• structural constituent of ribosome • translation regulator activity
Cellular Component:	• mitochondrion • mitochondrial inner membrane • mitochondrial ribosome • ribonucleoprotein complex
Biological Process:	• translation • protein targeting to mitochondrion

Orthologs

Human

Mouse

Refseq

NM_031903 (mRNA)
NP_114109 (protein)

NM_029271 (mRNA)
NP_083547 (protein)

Location

Chr 7: 42.94 - 42.94 Mb

Chr 13: 14.4 - 14.41 Mb

Pubmed search

[1]

[2]

Mitochondrial ribosomal protein L32, also known as MRPL32, 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 that belongs to the L32 ribosomal protein family. A pseudogene corresponding to this gene is found on chromosome Xp.^[1]

[edit] References

^ ^a ^b Entrez Gene: MRPL32 mitochondrial ribosomal protein L32.

[edit] Further reading

Bonaldo MF, Lennon G, Soares MB (1997). "Normalization and subtraction: two approaches to facilitate gene discovery.". Genome Res. 6 (9): 791-806. 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.
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.
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. 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. doi:10.1073/pnas.242603899. PMID 12477932.
Scherer SW, Cheung J, MacDonald JR, et al. (2003). "Human chromosome 7: DNA sequence and biology.". Science 300 (5620): 767-72. doi:10.1126/science.1083423. 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. 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.
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.