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AP3B2

Chr 15q25.2

adaptor related protein complex 3 subunit beta 2

Aliases:
NAPTB
MANE:
ENST00000535359.6

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Optic neuropathy

    BIALLELIC, autosomal or pseudoautosomal
  • Retinal disorders

    BIALLELIC, autosomal or pseudoautosomal

Disease associations (Open Targets)

  • developmental and epileptic encephalopathy, 48

    0.73
  • genetic developmental and epileptic encephalopathy

    0.37
  • undetermined early-onset epileptic encephalopathy

    0.37
  • Epileptic encephalopathy

    0.33
  • intelligence

    0.33
  • mathematical ability

    0.25
  • attention deficit-hyperactivity disorder

    0.24
  • autism spectrum disorder

    0.24
  • placental abruption

    0.22
  • schizophrenia

    0.20

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

Protein function (UniProt)

AP-3 complex subunit beta-2

Subunit of non-clathrin- and clathrin-associated adaptor protein complex 3 (AP-3) that plays a role in protein sorting in the late-Golgi/trans-Golgi network (TGN) and/or endosomes. The AP complexes mediate both the recruitment of clathrin to membranes and the recognition of sorting signals within the cytosolic tails of transmembrane cargo molecules. AP-3 appears to be involved in the sorting of a subset of transmembrane proteins targeted to lysosomes and lysosome-related organelles. In concert with the BLOC-1 complex, AP-3 is required to target cargos into vesicles assembled at cell bodies for delivery into neurites and nerve terminals

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.