1350
The recent discovery of mutations in the common gamma chain (gamma c) gene , a constituent of several cytokine receptors , in XSCID provided an opportunity to test directly whether a previously unrecognized mutation in this same gene was responsible for XCID .
 DNA: common gamma chain (gamma c) gene; protein: cytokine receptors
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: common gamma chain (gamma c) gene, cytokine receptors 
Answer:
 DNA: common gamma chain (gamma c) gene; protein: cytokine receptors