title: Mammalian mitochondrial ribosomal small subunit (MRPS) genes: A putative role in human disease.
abstract: Mitochondria are prominently understood as power houses producing ATP the primary energy currency of the cell. However, mitochondria are also known to play an important role in apoptosis and autophagy, and mitochondrial dysregulation can lead to pathological outcomes. Mitochondria are known to contain 1500 proteins of which only 13 are coded by mitochondrial DNA and the rest are coded by nuclear genes. Protein synthesis in mitochondria involves mitochondrial ribosomes which are 55-60S particles and are composed of small 28S and large 39S subunits. A feature of mammalian mitoribosome which differentiate it from bacterial ribosomes is the increased protein content. The human mitochondrial ribosomal protein (MRP) gene family comprises of 30 genes which code for mitochondrial ribosomal small subunit and 50 genes for the large subunit. The present review focuses on the mitochondrial ribosomal small subunit genes (MRPS), presents an overview of the literature and data gleaned from publicly available gene and protein expression databases. The survey revealed aberrations in MRPS gene expression patterns in varied human diseases indicating a putative role in their etiology.
authors.affiliation: Department of Molecular Oncology, Cancer Institute (WIA), Chennai, India.
authors.forename: Gopal
authors.initials: G
authors.lastname: Gopisetty
authors.affiliation: Department of Molecular Oncology, Cancer Institute (WIA), Chennai, India.
authors.forename: Rajkumar
authors.initials: R
authors.lastname: Thangarajan
mesh_terms: D000818:Animals; D002318:Cardiovascular Diseases / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D005786:Gene Expression Regulation; D006801:Humans; D008322:Mammals; D008928:Mitochondria / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D028361:Mitochondrial Diseases / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D024101:Mitochondrial Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D009369:Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D019636:Neurodegenerative Diseases / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D012269:Ribosomal Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D054682:Ribosome Subunits, Small, Eukaryotic / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D015398:Signal Transduction; D013167:Spondylitis, Ankylosing / Q000235:genetics / Q000378:metabolism / Q000473:pathology
chemical_list: D024101:Mitochondrial Proteins; D012269:Ribosomal Proteins
keywords: Disease; Genes; Mitochondria; Ribosomes; Small subunit