go_id,ontology,go_term,term_definition,evidence GO:0005768,CC,endosome,"A vacuole to which materials ingested by endocytosis are delivered.",IBA GO:0005769,CC,"early endosome","A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.",IDA|ISS GO:0005886,CC,"plasma membrane","The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.",IEA GO:0016023,CC,"cytoplasmic, membrane-bounded vesicle","A membrane-bounded vesicle found in the cytoplasm of the cell.",IEA GO:0051443,BP,"positive regulation of ubiquitin-protein transferase activity","Any process that activates, maintains or increases the rate of ubiquitin transferase activity.",IMP