Lithostathine-1-beta is a protein that in humans is encoded by the REG1Bgene.[1][2]
Function
This gene is a type I subclass member of the Reg gene family. The Reg gene family is a multigene family grouped into four subclasses, types I, II, III and IV based on the primary structures of the encoded proteins. This gene encodes a protein that is secreted by the exocrine pancreas. It is associated with islet cellregeneration and diabetogenesis and may be involved in pancreatic lithogenesis. Reg family members REG1A, REGL, PAP and this gene are tandomly clustered on chromosome 2p12 and may have arisen from the same ancestral gene by gene duplication.[2]
References
↑Moriizumi S, Watanabe T, Unno M, Nakagawara K, Suzuki Y, Miyashita H, Yonekura H, Okamoto H (Mar 1994). "Isolation, structural determination and expression of a novel reg gene, human regI beta". Biochim Biophys Acta. 1217 (2): 199–202. doi:10.1016/0167-4781(94)90035-3. PMID8110835.
De Reggi M, Gharib B (2002). "Protein-X, Pancreatic Stone-, Pancreatic thread-, reg-protein, P19, lithostathine, and now what? Characterization, structural analysis and putative function(s) of the major non-enzymatic protein of pancreatic secretions". Curr. Protein Pept. Sci. 2 (1): 19–42. doi:10.2174/1389203013381233. PMID12369899.
Itoh T, Tsuzuki H, Katoh T, Teraoka H, Matsumoto K, Yoshida N, Terazono K, Watanabe T, Yonekura H, Yamamoto H (1990). "Isolation and characterization of human reg protein produced in Saccharomyces cerevisiae". FEBS Lett. 272 (1–2): 85–8. doi:10.1016/0014-5793(90)80454-Q. PMID2226837.
Watanabe T, Yonekura H, Terazono K, Yamamoto H, Okamoto H (1990). "Complete nucleotide sequence of human reg gene and its expression in normal and tumoral tissues. The reg protein, pancreatic stone protein, and pancreatic thread protein are one and the same product of the gene". J. Biol. Chem. 265 (13): 7432–9. PMID2332435.
De Caro AM, Adrich Z, Fournet B, Capon C, Bonicel JJ, De Caro JD, Rovery M (1989). "N-terminal sequence extension in the glycosylated forms of human pancreatic stone protein. The 5-oxoproline N-terminal chain is O-glycosylated on the 5th amino acid residue". Biochim. Biophys. Acta. 994 (3): 281–4. doi:10.1016/0167-4838(89)90305-1. PMID2493268.
Terazono K, Yamamoto H, Takasawa S, Shiga K, Yonemura Y, Tochino Y, Okamoto H (1988). "A novel gene activated in regenerating islets". J. Biol. Chem. 263 (5): 2111–4. PMID2963000.
Rouimi P, Bonicel J, Rovery M, De Caro A (1987). "Cleavage of the Arg-Ile bond in the native polypeptide chain of human pancreatic stone protein". FEBS Lett. 216 (2): 195–9. doi:10.1016/0014-5793(87)80688-9. PMID3108036.
De Caro AM, Bonicel JJ, Rouimi P, De Caro JD, Sarles H, Rovery M (1987). "Complete amino acid sequence of an immunoreactive form of human pancreatic stone protein isolated from pancreatic juice". Eur. J. Biochem. 168 (1): 201–7. doi:10.1111/j.1432-1033.1987.tb13405.x. PMID3665916.
De Reggi M, Capon C, Gharib B, Wieruszeski JM, Michel R, Fournet B (1995). "The glycan moiety of human pancreatic lithostathine. Structure characterization and possible pathophysiological implications". Eur. J. Biochem. 230 (2): 503–10. doi:10.1111/j.1432-1033.1995.tb20589.x. PMID7607222.
Gharib B, Fox MF, Bartoli C, Giorgi D, Sansonetti A, Swallow DM, Dagorn JC, Berge-lefranc JL (1993). "Human regeneration protein/lithostathine genes map to chromosome 2p12". Ann. Hum. Genet. 57 (Pt 1): 9–16. doi:10.1111/j.1469-1809.1993.tb00882.x. PMID8333731.
Bartoli C, Gharib B, Giorgi D, Sansonetti A, Dagorn JC, Bergé-Lefranc JL (1993). "A gene homologous to the reg gene is expressed in the human pancreas". FEBS Lett. 327 (3): 289–93. doi:10.1016/0014-5793(93)81006-L. PMID8348956.
Miyashita H, Nakagawara K, Mori M, Narushima Y, Noguchi N, Moriizumi S, Takasawa S, Yonekura H, Takeuchi T, Okamoto H (1996). "Human REG family genes are tandemly ordered in a 95-kilobase region of chromosome 2p12". FEBS Lett. 377 (3): 429–33. doi:10.1016/0014-5793(95)01381-4. PMID8549770.
Patard L, Stoven V, Gharib B, Bontems F, Lallemand JY, De Reggi M (1997). "What function for human lithostathine?: structural investigations by three-dimensional structure modeling and high-resolution NMR spectroscopy". Protein Eng. 9 (11): 949–57. doi:10.1093/protein/9.11.949. PMID8961348.
Bartoli C, Baeza N, Figarella C, Pellegrini I, Figarella-Branger D (1998). "Expression of peptide-23/pancreatitis-associated protein and Reg genes in human pituitary and adenomas: comparison with other fetal and adult human tissues". J. Clin. Endocrinol. Metab. 83 (11): 4041–6. doi:10.1210/jc.83.11.4041. PMID9814489.