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We next developed a rapid purification method for bacterial recombinant MyoD - bHLH domain by affinity chromatography using a calmodulin - Sepharose column and investigated the phosphorylation of that peptide by PKC and its interactions with calmodulin and S100a .
 GENE: bacterial recombinant MyoD - bHLH domain; GENE: calmodulin; GENE: PKC; GENE: calmodulin; GENE: S100a
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: bacterial recombinant MyoD - bHLH domain; GENE: calmodulin; GENE: PKC; GENE: calmodulin; GENE: S100a