Guanylate cyclase 2C
Guanylate cyclase 2C, also known as guanylyl cyclase C (GC-C), intestinal guanylate cyclase, guanylate cyclase-C receptor, or the heat-stable enterotoxin receptor (hSTAR) is an enzyme that in humans is encoded by the GUCY2C gene.[1][2]
Guanylyl cyclase is an enzyme found in the luminal aspect of intestinal epithelium and dopamine neurons in the brain [3]. The receptor has an extracellular ligand-binding domain, a single transmembrane region, a region with sequence similar to that of protein kinases, and a C-terminal guanylate cyclase domain. Tyrosine kinase activity mediates the GC-C signaling pathway within the cell.
Functions
GC-C is a key receptor for heat-stable enterotoxins that are responsible for acute secretory diarrhea.[4] Heat-stable enterotoxins are produced by pathogens such as Escherichia coli. Knockout mice deficient in the GC-C gene do not show secretory diarrhea on infection with E. coli, though they do with cholera toxin. This demonstrates the specificity of the GC-C receptor.
Diagnostic application
Because GC-C is tissue-specific for intestinal epithelium, it can be used for detection of metastatic disease.
See also
References
- ^ "Entrez Gene: guanylate cyclase 2C (heat stable enterotoxin receptor)". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=2984.
- ^ Mann EA, Swenson ES, Copeland NG, Gilbert DJ, Jenkins NA, Taguchi T, Testa JR, Giannella RA (June 1996). "Localization of the guanylyl cyclase C gene to mouse chromosome 6 and human chromosome 12p12". Genomics 34 (2): 265–7. doi:10.1006/geno.1996.0284. PMID 8661067.
- ^ Intestinal Protein May Have Role in ADHD, Other Neurological Disorders. ScienceDaily (Aug. 11, 2011) [1]
- ^ Weiglmeier PR, Rösch P, Berkner H (August 2010). "Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C". Toxins 2 (9): 2213–2229. doi:10.3390/toxins2092213.
Further reading
- Schulz S, Hyslop T, Haaf J, et al. (2006). "A validated quantitative assay to detect occult micrometastases by reverse transcriptase-polymerase chain reaction of guanylyl cyclase C in patients with colorectal cancer.". Clin. Cancer Res. 12 (15): 4545–52. doi:10.1158/1078-0432.CCR-06-0865. PMID 16899600.
- Park J, Schulz S, Haaf J, et al. (2002). "Ectopic expression of guanylyl cyclase C in adenocarcinomas of the esophagus and stomach.". Cancer Epidemiol. Biomarkers Prev. 11 (8): 739–44. PMID 12163327.
- Tien YW, Lee PH, Hu RH, et al. (2003). "The role of gelatinase in hepatic metastasis of colorectal cancer.". Clin. Cancer Res. 9 (13): 4891–6. PMID 14581363.
- Basu N, Bhandari R, Natarajan VT, Visweswariah SS (2009). "Cross talk between receptor guanylyl cyclase C and c-src tyrosine kinase regulates colon cancer cell cytostasis.". Mol. Cell. Biol. 29 (19): 5277–89. doi:10.1128/MCB.00001-09. PMID 19620276.
- Mann EA, Steinbrecher KA, Stroup C, et al. (2005). "Lack of guanylyl cyclase C, the receptor for Escherichia coli heat-stable enterotoxin, results in reduced polyp formation and increased apoptosis in the multiple intestinal neoplasia (Min) mouse model.". Int. J. Cancer 116 (4): 500–5. doi:10.1002/ijc.21119. PMID 15825168.
- Saha S, Biswas KH, Kondapalli C, et al. (2009). "The linker region in receptor guanylyl cyclases is a key regulatory module: mutational analysis of guanylyl cyclase C.". J. Biol. Chem. 284 (40): 27135–45. doi:10.1074/jbc.M109.020032. PMID 19648115.
- Bhandari R, Srinivasan N, Mahaboobi M, et al. (2001). "Functional inactivation of the human guanylyl cyclase C receptor: modeling and mutation of the protein kinase-like domain.". Biochemistry 40 (31): 9196–206. doi:10.1021/bi002595g. PMID 11478887.
- Sindiće A, BaÅŸoglu C, Cerçi A, et al. (2002). "Guanylin, uroguanylin, and heat-stable euterotoxin activate guanylate cyclase C and/or a pertussis toxin-sensitive G protein in human proximal tubule cells.". J. Biol. Chem. 277 (20): 17758–64. doi:10.1074/jbc.M110627200. PMID 11889121.
- Jaleel M, London RM, Eber SL, et al. (2002). "Expression of the receptor guanylyl cyclase C and its ligands in reproductive tissues of the rat: a potential role for a novel signaling pathway in the epididymis.". Biol. Reprod. 67 (6): 1975–80. doi:10.1095/biolreprod.102.006445. PMID 12444076.
- Mejia A, Schulz S, Hyslop T, et al. (2009). "GUCY2C reverse transcriptase PCR to stage pN0 colorectal cancer patients.". Expert Rev. Mol. Diagn. 9 (8): 777–85. doi:10.1586/erm.09.67. PMID 19895223.
- Scott RO, Thelin WR, Milgram SL (2002). "A novel PDZ protein regulates the activity of guanylyl cyclase C, the heat-stable enterotoxin receptor.". J. Biol. Chem. 277 (25): 22934–41. doi:10.1074/jbc.M202434200. PMID 11950846.
- Ghanekar Y, Chandrashaker A, Tatu U, Visweswariah SS (2004). "Glycosylation of the receptor guanylate cyclase C: role in ligand binding and catalytic activity.". Biochem. J. 379 (Pt 3): 653–63. doi:10.1042/BJ20040001. PMID 14748740.
- Kulaksiz H, Cetin Y (2001). "Uroguanylin and guanylate cyclase C in the human pancreas: expression and mutuality of ligand/receptor localization as indicators of intercellular paracrine signaling pathways.". J. Endocrinol. 170 (1): 267–75. doi:10.1677/joe.0.1700267. PMID 11431160.
- Debruyne PR, Witek M, Gong L, et al. (2006). "Bile acids induce ectopic expression of intestinal guanylyl cyclase C Through nuclear factor-kappaB and Cdx2 in human esophageal cells.". Gastroenterology 130 (4): 1191–206. doi:10.1053/j.gastro.2005.12.032. PMID 16618413.
- Singh R (2003). "Interaction of guanylyl cyclase C with SH3 domain of Src tyrosine kinase. Yet another mechanism for desensitization.". J. Biol. Chem. 278 (27): 24342–9. doi:10.1074/jbc.M301153200. PMID 12649275.
- Selvaraj NG, Prasad R, Goldstein JL, Rao MC (2000). "Evidence for the presence of cGMP-dependent protein kinase-II in human distal colon and in T84, the colonic cell line.". Biochim. Biophys. Acta 1498 (1): 32–43. PMID 11042348.
- Ciocca V, Bombonati A, Palazzo JP, et al. (2009). "Guanylyl cyclase C is a specific marker for differentiating primary and metastatic ovarian mucinous neoplasms.". Histopathology 55 (2): 182–8. doi:10.1111/j.1365-2559.2009.03358.x. PMID 19694825.
- Strausberg RL, Feingold EA, Grouse LH, et al. (2002). "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.
- Dias Neto E, Correa RG, Verjovski-Almeida S, et al. (2000). "Shotgun sequencing of the human transcriptome with ORF expressed sequence tags.". Proc. Natl. Acad. Sci. U.S.A. 97 (7): 3491–6. doi:10.1073/pnas.97.7.3491. PMC 16267. PMID 10737800. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=16267.
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B enzm: 1.1/2/3/4/5/6/7/8/10/11/13/14/15-18, 2.1/2/3/4/5/6/7/8, 2.7.10, 2.7.11-12, 3.1/2/3/4/5/6/7, 3.1.3.48, 3.4.21/22/23/24, 4.1/2/3/4/5/6, 5.1/2/3/4/99, 6.1-3/4/5-6
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| Receptor protein serine/threonine kinase |
Bone morphogenetic protein receptors ( BMPR1, BMPR1A, BMPR1B, BMPR2), ACVR1, ACVR1B, ACVR1C, ACVR2A, ACVR2B, ACVRL1, Anti-Müllerian hormone receptor
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PTPRA, PTPRB, PTPRC, PTPRD, PTPRE, PTPRF, PTPRG, PTPRH, PTPRJ, PTPRK, PTPRM, PTPRN, PTPRN2, PTPRO, PTPRQ, PTPRR, PTPRS, PTPRT, PTPRU, PTPRZ
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B trdu: iter (nrpl/grfl/cytl/horl), csrc (lgic, enzr, gprc, igsr, intg, nrpr/grfr/cytr), itra (adap, gbpr, mapk), calc, lipd; path (hedp, wntp, tgfp+mapp, notp, jakp, fsap, hipp, tlrp)
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