BYSL
Bystin is a protein that in humans is encoded by the BYSL gene.[1][2][3]
Bystin is expressed as a 2-kb major transcript and a 3.6-kb minor transcript in SNG-M cells and in human trophoblastic teratocarcinoma HT-H cells. Protein binding assays determined that bystin binds directly to trophinin and tastin, and that binding is enhanced when cytokeratins 8 and 18 are present. Immunocytochemistry of HT-H cells showed that bystin colocalizes with trophinin, tastin, and the cytokeratins, suggesting that these molecules form a complex in trophectoderm cells at the time of implantation. Using immunohistochemistry it was determined that trophinin and bystin are found in the placenta from the sixth week of pregnancy. Both proteins were localized in the cytoplasm of the syncytiotrophoblast in the chorionic villi and in endometrial decidual cells at the uteroplacental interface. After week 10, the levels of trophinin, tastin, and bystin decreased and then disappeared from placental villi.[3]
Interactions
BYSL has been shown to interact with TROAP.[4]
References
- ^ Pack SD, Pak E, Tanigami A, Ledbetter DH, Fukuda MN (Mar 1999). "Assignment1 of the bystin gene BYSL to human chromosome band 6p21.1 by in situ hybridization". Cytogenet Cell Genet 83 (1-2): 76–7. doi:10.1159/000015131. PMID 9925933.
- ^ Miyoshi M, Okajima T, Matsuda T, Fukuda MN, Nadano D (May 2007). "Bystin in human cancer cells: intracellular localization and function in ribosome biogenesis". Biochem J 404 (3): 373–81. doi:10.1042/BJ20061597. PMC 1896285. PMID 17381424. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1896285.
- ^ a b "Entrez Gene: BYSL bystin-like". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=705.
- ^ Suzuki, N; Zara J, Sato T, Ong E, Bakhiet N, Oshima R G, Watson K L, Fukuda M N (Apr. 1998). "A cytoplasmic protein, bystin, interacts with trophinin, tastin, and cytokeratin and may be involved in trophinin-mediated cell adhesion between trophoblast and endometrial epithelial cells". Proc. Natl. Acad. Sci. U.S.A. (UNITED STATES) 95 (9): 5027–32. doi:10.1073/pnas.95.9.5027. ISSN 0027-8424. PMC 20207. PMID 9560222. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=20207.
Further reading
- Suzuki N, Zara J, Sato T, et al. (1998). "A cytoplasmic protein, bystin, interacts with trophinin, tastin, and cytokeratin and may be involved in trophinin-mediated cell adhesion between trophoblast and endometrial epithelial cells.". Proc. Natl. Acad. Sci. U.S.A. 95 (9): 5027–32. doi:10.1073/pnas.95.9.5027. PMC 20207. PMID 9560222. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=20207.
- Suzuki N, Nakayama J, Shih IM, et al. (1999). "Expression of trophinin, tastin, and bystin by trophoblast and endometrial cells in human placenta.". Biol. Reprod. 60 (3): 621–7. doi:10.1095/biolreprod60.3.621. PMID 10026108.
- 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. PMC 139241. PMID 12477932. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=139241.
- Nakayama J, Aoki D, Suga T, et al. (2004). "Implantation-dependent expression of trophinin by maternal fallopian tube epithelia during tubal pregnancies: possible role of human chorionic gonadotrophin on ectopic pregnancy.". Am. J. Pathol. 163 (6): 2211–9. doi:10.1016/S0002-9440(10)63579-1. PMC 1892375. PMID 14633596. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1892375.
- 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. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=528928.
- Rual JF, Venkatesan K, Hao T, et al. (2005). "Towards a proteome-scale map of the human protein-protein interaction network.". Nature 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.
- Olsen JV, Blagoev B, Gnad F, et al. (2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks.". Cell 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.