# Radiolabel protein

**URL:** <https://scientistsolutions.discourse.group/t/radiolabel-protein/602>\
**Category:** Protein Labels\
**Created:** [January 4, 2025, 7:01am UTC](https://scientistsolutions.discourse.group/t/radiolabel-protein/602 "2025-01-04T07:01:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Lauraripley](https://avatars.discourse-cdn.com/v4/letter/l/96bed5/32.png) [@Lauraripley](https://scientistsolutions.discourse.group/u/Lauraripley)\
**Post date:** [January 4, 2025, 7:01am UTC](https://scientistsolutions.discourse.group/t/radiolabel-protein/602/1 "2025-01-04T07:01:19Z")

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Hello, I want to label recombinant protein with 14C radioisotope. I have 14C-acetic anhydride to label lysin residues and N terminus. The labeling yield was too low (about 1%!!). Could you tell me what buffer to use to get higher labeling yield.