TOMM20

Template:Short description An Error has occurred retrieving Wikidata item for infobox Mitochondrial import receptor subunit TOM20 homolog is a protein that in humans is encoded by the TOMM20 gene. TOM20 is one of the receptor systems of the translocase of the outer membrane (TOM) complex in the outer mitochondrial membrane.

Function

In mitochondrial protein import, TOM20 is closely associated with the pore-forming TOM40 complex and acts by recognizing and binding the N-terminal MTSs (matrix-targeting sequences), which form an amphipathic alpha helix and aid passage of the target proteins into the mitochondrial matrix.

See also

• TOMM22
• TOMM40
• TOMM70A

Further reading

• Nomura N, Miyajima N, Sazuka T, Tanaka A, Kawarabayasi Y, Sato S, et al. (1995). "Prediction of the coding sequences of unidentified human genes. I. The coding sequences of 40 new genes (KIAA0001-KIAA0040) deduced by analysis of randomly sampled cDNA clones from human immature myeloid cell line KG-1". DNA Research. 1 (1): 27–35. doi:10.1093/dnares/1.1.27. PMID 7584026.
• Nomura N, Miyajima N, Sazuka T, Tanaka A, Kawarabayasi Y, Sato S, et al. (1995). "Prediction of the coding sequences of unidentified human genes. I. The coding sequences of 40 new genes (KIAA0001-KIAA0040) deduced by analysis of randomly sampled cDNA clones from human immature myeloid cell line KG-1 (supplement)". DNA Research. 1 (1): 47–56. doi:10.1093/dnares/1.1.47. PMID 7584028.
• Schleiff E, Shore GC, Goping IS (March 1997). "Human mitochondrial import receptor, Tom20p. Use of glutathione to reveal specific interactions between Tom20-glutathione S-transferase and mitochondrial precursor proteins". FEBS Letters. 404 (2–3): 314–318. doi:10.1016/S0014-5793(97)00145-2. PMID 9119086. S2CID 29177508.
• Schleiff E, Shore GC, Goping IS (July 1997). "Interactions of the human mitochondrial protein import receptor, hTom20, with precursor proteins in vitro reveal pleiotropic specificities and different receptor domain requirements". The Journal of Biological Chemistry. 272 (28): 17784–17789. doi:10.1074/jbc.272.28.17784. PMID 9211931.
• Schleiff E, Turnbull JL (September 1998). "Characterization of the N-terminal targeting signal binding domain of the mitochondrial outer membrane receptor, Tom20". Biochemistry. 37 (38): 13052–13058. doi:10.1021/bi980746y. PMID 9748310.
• Yano M, Kanazawa M, Terada K, Takeya M, Hoogenraad N, Mori M (October 1998). "Functional analysis of human mitochondrial receptor Tom20 for protein import into mitochondria". The Journal of Biological Chemistry. 273 (41): 26844–26851. doi:10.1074/jbc.273.41.26844. PMID 9756929.
• Hernández JM, Giner P, Hernández-Yago J (November 1999). "Gene structure of the human mitochondrial outer membrane receptor Tom20 and evolutionary study of its family of processed pseudogenes". Gene. 239 (2): 283–291. doi:10.1016/S0378-1119(99)00409-6. PMID 10548729.
• Suzuki H, Okazawa Y, Komiya T, Saeki K, Mekada E, Kitada S, et al. (December 2000). "Characterization of rat TOM40, a central component of the preprotein translocase of the mitochondrial outer membrane". The Journal of Biological Chemistry. 275 (48): 37930–37936. doi:10.1074/jbc.M006558200. PMID 10980201.
• Yano M, Hoogenraad N, Terada K, Mori M (October 2000). "Identification and functional analysis of human Tom22 for protein import into mitochondria". Molecular and Cellular Biology. 20 (19): 7205–7213. doi:10.1128/MCB.20.19.7205-7213.2000. PMC 86274. PMID 10982837.
• Abdul KM, Terada K, Yano M, Ryan MT, Streimann I, Hoogenraad NJ, Mori M (October 2000). "Functional analysis of human metaxin in mitochondrial protein import in cultured cells and its relationship with the Tom complex". Biochemical and Biophysical Research Communications. 276 (3): 1028–1034. CiteSeerX 10.1.1.379.8183. doi:10.1006/bbrc.2000.3589. PMID 11027586.
• Mukhopadhyay A, Avramova LV, Weiner H (April 2002). "Tom34 unlike Tom20 does not interact with the leader sequences of mitochondrial precursor proteins". Archives of Biochemistry and Biophysics. 400 (1): 97–104. doi:10.1006/abbi.2002.2777. PMID 11913975.
• Yano M, Terada K, Mori M (October 2003). "AIP is a mitochondrial import mediator that binds to both import receptor Tom20 and preproteins". The Journal of Cell Biology. 163 (1): 45–56. doi:10.1083/jcb.200305051. PMC 2173431. PMID 14557246.
• Yano M, Terada K, Mori M (March 2004). "Mitochondrial import receptors Tom20 and Tom22 have chaperone-like activity". The Journal of Biological Chemistry. 279 (11): 10808–10813. doi:10.1074/jbc.M311710200. PMID 14699115.
• Humphries AD, Streimann IC, Stojanovski D, Johnston AJ, Yano M, Hoogenraad NJ, Ryan MT (March 2005). "Dissection of the mitochondrial import and assembly pathway for human Tom40". The Journal of Biological Chemistry. 280 (12): 11535–11543. doi:10.1074/jbc.M413816200. PMID 15644312.
• Stelzl U, Worm U, Lalowski M, Haenig C, Brembeck FH, Goehler H, et al. (September 2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–968. doi:10.1016/j.cell.2005.08.029. hdl:11858/00-001M-0000-0010-8592-0. PMID 16169070. S2CID 8235923.