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CHMP2B
Protein-coding gene in the species Homo sapiens

Charged multivesicular body protein 2b is a protein that in humans is encoded by the CHMP2B gene. It forms part of one of the endosomal sorting complexes required for transport (ESCRT) - specifically ESCRT-III - which are a series of complexes involved in cell membrane remodelling. CHMP2B forms long chains that spiral around the neck of a budding vesicle. Along with the other components of ESCRT-III, CHMP2B constricts the neck of the vesicle just before it is cleaved away from the membrane.

Mutations of this gene cause chromosome 3-linked frontotemporal dementia (FTD3), which has been described in several members of one Danish family [1]. In a study of French families with several forms of frontotemporal dementia, it was found to be a relatively rare cause.

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Further reading

References

  1. Howard TL, Stauffer DR, Degnin CR, Hollenberg SM (Sep 2001). "CHMP1 functions as a member of a newly defined family of vesicle trafficking proteins". J Cell Sci. 114 (Pt 13): 2395–404. doi:10.1242/jcs.114.13.2395. PMID 11559748. /wiki/Doi_(identifier)

  2. "Entrez Gene: CHMP2B chromatin modifying protein 2B". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=25978

  3. Ghanim M, Guillot-Noel L, Pasquier F, Jornea L, Deramecourt V, Dubois B, Le Ber I, Brice A (July 2010). "CHMP2B mutations are rare in French families with frontotemporal lobar degeneration". J Neurol. 257 (12): 2032–6. doi:10.1007/s00415-010-5655-8. PMID 20625756. S2CID 21422763. /wiki/Doi_(identifier)