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The gene product of cotS was confirmed to be identical to Cot40 - 2 by SDS - PAGE and immunoblotting from Escherichia coli transformed with a plasmid containing the cotS region .
 GENE: cotS; GENE: Cot40 - 2; GENE: cotS region
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: cotS; GENE: Cot40 - 2; GENE: cotS region