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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.
Gene Name: | adaptor-related protein complex 3, beta 2 subunit |
Synonyms: | AP3B2, AP-3 complex subunit beta-2, NAPTB, Beta-3B-adaptin |
Target Sequences: | NM_004644 NP_004635.2 Q13367 |
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