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. Author manuscript; available in PMC: 2017 Jul 11.
Published in final edited form as: Methods Enzymol. 2016 Feb 16;573:43–65. doi: 10.1016/bs.mie.2016.01.003
250 μl 235 μM PRC1 ub module prep 1 (2.5 mg)
738 μl labeling buffer (10 mM HEPES pH 7.5, 300 mM NaCl)
12 μl 10 mM carboxyrhodamine succinimidyl ester
1000 μl total volume (2.5 mg/ml chromatin protein)