Biology:Guanylate cyclase 2C
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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.
In medicine
Guanylate cyclase 2C is the target of linaclotide and plecanatide, oligopeptide agonists used for the treatment of chronic constipation.
References
- ↑ "Entrez Gene: guanylate cyclase 2C (heat stable enterotoxin receptor)". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=2984.
- ↑ "Localization of the guanylyl cyclase C gene to mouse chromosome 6 and human chromosome 12p12". Genomics 34 (2): 265–7. June 1996. doi:10.1006/geno.1996.0284. PMID 8661067.
- ↑ Intestinal Protein May Have Role in ADHD, Other Neurological Disorders. ScienceDaily (Aug. 11, 2011) [1]
- ↑ "Cure and Curse: E. coli Heat-Stable Enterotoxin and Its Receptor Guanylyl Cyclase C". Toxins 2 (9): 2213–2229. August 2010. doi:10.3390/toxins2092213. PMID 22069681.
Further reading
- "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. 2006. doi:10.1158/1078-0432.CCR-06-0865. PMID 16899600.
- "Ectopic expression of guanylyl cyclase C in adenocarcinomas of the esophagus and stomach.". Cancer Epidemiol. Biomarkers Prev. 11 (8): 739–44. 2002. PMID 12163327.
- "The role of gelatinase in hepatic metastasis of colorectal cancer.". Clin. Cancer Res. 9 (13): 4891–6. 2003. PMID 14581363.
- "Cross talk between receptor guanylyl cyclase C and c-src tyrosine kinase regulates colon cancer cell cytostasis.". Mol. Cell. Biol. 29 (19): 5277–89. 2009. doi:10.1128/MCB.00001-09. PMID 19620276.
- "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. 2005. doi:10.1002/ijc.21119. PMID 15825168.
- "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. 2009. doi:10.1074/jbc.M109.020032. PMID 19648115.
- "Functional inactivation of the human guanylyl cyclase C receptor: modeling and mutation of the protein kinase-like domain.". Biochemistry 40 (31): 9196–206. 2001. doi:10.1021/bi002595g. PMID 11478887.
- "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. 2002. doi:10.1074/jbc.M110627200. PMID 11889121.
- "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. 2002. doi:10.1095/biolreprod.102.006445. PMID 12444076.
- "GUCY2C reverse transcriptase PCR to stage pN0 colorectal cancer patients.". Expert Rev. Mol. Diagn. 9 (8): 777–85. 2009. doi:10.1586/erm.09.67. PMID 19895223.
- "A novel PDZ protein regulates the activity of guanylyl cyclase C, the heat-stable enterotoxin receptor.". J. Biol. Chem. 277 (25): 22934–41. 2002. doi:10.1074/jbc.M202434200. PMID 11950846.
- "Glycosylation of the receptor guanylate cyclase C: role in ligand binding and catalytic activity.". Biochem. J. 379 (Pt 3): 653–63. 2004. doi:10.1042/BJ20040001. PMID 14748740.
- "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. 2001. doi:10.1677/joe.0.1700267. PMID 11431160.
- "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. 2006. 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.
- "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. 2000. doi:10.1016/s0167-4889(00)00075-6. PMID 11042348.
- "Guanylyl cyclase C is a specific marker for differentiating primary and metastatic ovarian mucinous neoplasms.". Histopathology 55 (2): 182–8. 2009. doi:10.1111/j.1365-2559.2009.03358.x. PMID 19694825.
- "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. 2002. doi:10.1073/pnas.242603899. PMID 12477932. Bibcode: 2002PNAS...9916899M.
- "Shotgun sequencing of the human transcriptome with ORF expressed sequence tags.". Proc. Natl. Acad. Sci. U.S.A. 97 (7): 3491–6. 2000. doi:10.1073/pnas.97.7.3491. PMID 10737800. Bibcode: 2000PNAS...97.3491D.
External links
- GCC testing for colorectal cancer staging
- GC-C knock-out mice
- guanyl+cyclase-C+receptor at the US National Library of Medicine Medical Subject Headings (MeSH)
![]() | Original source: https://en.wikipedia.org/wiki/Guanylate cyclase 2C.
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