12217
Thus , MKK7 is an essential and specific regulator of stress - induced SAPK / JNK activation in mast cells and MKK7 negatively regulates growth factor and antigen receptor - driven proliferation in hematopoietic cells .
 GENE: MKK7; GENE: SAPK; GENE: JNK; GENE: MKK7
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: MKK7, SAPK, JNK, MKK7 
Answer:
 GENE: MKK7; GENE: SAPK; GENE: JNK; GENE: MKK7