vacuolar protein sorting-associated protein 32-1 CHMP4 C14orf123 SHAX2 SNF7-1 charged multivesicular body protein 4a SNF7 chromatin modifying protein 4A VPS32A VPS32-1 HSPC134 hSnf7-1 SNF7 homolog associated with Alix-2 Snf7 homologue associated with Alix 2 CHMP4B