4132
Single substitutions of three highly conserved phenylalanine residues ( Phe - 15 , Phe - 17 , Phe - 27 ) by alanine and substitution of one histidine ( His - 29 ) by glutamine , all located within the putative RNA - binding sites RNP - 1 and RNP - 2 , abolished the nucleic acid - binding activity of CspB .
 GENE: RNP - 1; GENE: RNP - 2; GENE: CspB
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: RNP - 1; GENE: RNP - 2; GENE: CspB