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Although all nm23 proteins contain nucleoside diphosphate (NDP) kinase activity , it has not been established that the enzyme activity mediated the various functions of nm23 proteins .
 protein: nucleoside diphosphate (NDP) kinase; protein: nm23 proteins; protein: nm23 proteins
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: nucleoside diphosphate (NDP) kinase, nm23 proteins, nm23 proteins 
Answer:
 protein: nucleoside diphosphate (NDP) kinase; protein: nm23 proteins; protein: nm23 proteins