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. Author manuscript; available in PMC: 2024 Jan 11.
Published in final edited form as: Methods Cell Biol. 2022 Jan 20;169:237–266. doi: 10.1016/bs.mcb.2021.12.006

FIG. 7.

FIG. 7

Photochemical- and chemical-based proximity labeling methods. (A) The mechanism of blue light/Dexter energy transfer catalyzed proximity labeling of proteins on a cell surface near a protein-of-interest. (B) The photo- or chemical-based decaging of a biotin ligase to initiate proximity labeling.