Biology:SCG5

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A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Neuroendocrine protein 7B2 is a protein that in humans is encoded by the SCG5 gene.[1][2][3] The protein expressed by this gene is widely distributed in neuroendocrine tissues. It functions as a chaperone protein for the proprotein convertase PC2 by blocking the aggregation of this protein, and is required for the production of an active PC2 enzyme.[4][5] It is an intrinsically disordered protein that may also function as a chaperone for other aggregating secretory proteins in addition to proPC2 (Helwig et al. 2013). 7B2 has been identified in vertebrates and in invertebrates as low as flatworms (Protein ID: AIZ72728.1) and insects.[6] It is also called Sgne1 and Secretogranin V. In C. elegans, it was originally called e7B2[7] and then renamed Seven B Two (gene name sbt-1). There is a Pfam entry for this protein: Secretogranin_V (PF05281).

References

  1. "Analysis of chromogranin/secretogranin messenger RNAs in human pituitary adenomas". Diagnostic Molecular Pathology 3 (1): 38–45. March 1994. doi:10.1097/00019606-199403010-00007. PMID 8162254. 
  2. "The chromogranin-secretogranin family". The New England Journal of Medicine 348 (12): 1134–49. March 2003. doi:10.1056/NEJMra021405. PMID 12646671. 
  3. "Cloning and sequence analysis of human pituitary cDNA encoding the novel polypeptide 7B2". FEBS Letters 234 (1): 160–4. July 1988. doi:10.1016/0014-5793(88)81324-3. PMID 3134253. 
  4. "Entrez Gene: SCG5 secretogranin V (7B2 protein)". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=6447. 
  5. "Neuroendocrine secretory protein 7B2: structure, expression and functions". The Biochemical Journal 357 (Pt 2): 329–42. July 2001. doi:10.1042/0264-6021:3570329. PMID 11439082. PMC 1221959. http://www.biochemj.org/bj/357/0329/bj3570329.htm. 
  6. "Interaction of Drosophila melanogaster prohormone convertase 2 and 7B2. Insect cell-specific processing and secretion". The Journal of Biological Chemistry 275 (23): 17886–93. June 2000. doi:10.1074/jbc.M000032200. PMID 10749852. 
  7. "Transplacental in vivo/in vitro mutagenicity of AF-2, a nitrofuran, in golden hamster cells [proceedings]". Mutation Research 38 (5): 338. October 1976. doi:10.1016/0165-1161(76)90163-1. PMID 972625. 

Further reading