direct assay evidence protein proximity labeling assay evidence ECO:0008183 KAUST:RohitSatyam A type of direct assay evidence in which proteins of interest are fused to an enzyme that is able to label or modify other proteins that come into the proximity of the protein of interest. Labeled/modified proteins are then isolated and identified, often by mass spectrometry. 2026-04-05T15:56:13Z eco snadendla