851113-28-5

Biotin-XX-tyramide (biotin-XX-phenol; BxxP) is a membrane-impermeant variant of the proximity labeling probe biotin-tyramide (biotin-phenol; BP) th at corresponds to BP with a long and polar polyamide linker. Similary to BPBxxP gives robust biotinylation with HRP and H2O2but unlike BPBxxP no longer enters cellsyielding selective labeling of cell surfacebut not intracellularproteins.