1256
Recombinant MsERK1 ( rMsERK1 ) , when overexpressed in Escherichia coli , is recognized by antibodies raised against MAP kinases from rat , Xenopus , and sea star and by anti - phosphotyrosine antibodies .
 GENE: Recombinant MsERK1; GENE: rMsERK1; GENE: MAP kinases from rat , Xenopus , and sea star; GENE: anti - phosphotyrosine antibodies
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: Recombinant MsERK1; GENE: rMsERK1; GENE: MAP kinases from rat , Xenopus , and sea star; GENE: anti - phosphotyrosine antibodies