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CHMP2B

Chr 3p11.2

charged multivesicular body protein 2B

Aliases:
DKFZP564O123, CHMP2.5, VPS2B
MANE:
ENST00000263780.9

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Adult onset dystonia, chorea or related movement disorder

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Adult onset neurodegenerative disorder

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Early onset dementia (encompassing fronto-temporal dementia and prion disease)

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Early onset dystonia

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Amyotrophic lateral sclerosis/motor neuron disease

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Childhood onset dystonia, chorea or related movement disorder

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Disease associations (Open Targets)

  • amyotrophic lateral sclerosis

    0.77
  • frontotemporal dementia

    0.76
  • behavioral variant of frontotemporal dementia

    0.75
  • Dystonia

    0.46
  • viral infectious disease

    0.46
  • HIV infectious disease

    0.46
  • prostate cancer

    0.44
  • prostate carcinoma

    0.41
  • COVID-19

    0.37
  • familial amyotrophic lateral sclerosis

    0.37

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Charged multivesicular body protein 2b

Probable core component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. The MVB pathway appears to require the sequential function of ESCRT-O, -I,-II and -III complexes. ESCRT-III proteins mostly dissociate from the invaginating membrane before the ILV is released. The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis and the budding of enveloped viruses (HIV-1 and other lentiviruses). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4

Curated MONDO disease pages that list CHMP2B among their top associated genes.

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.