21050
A subset of human patients carry mutations in either STIM1 or Orai1 that affect protein function or expression , resulting in defective store - operated Ca ( 2 + ) influx and CRAC channel function , and impaired T cell activation .
 Chemical: Ca ( 2 + )
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Ca ( 2 + ) 
Answer:
 Chemical: Ca ( 2 + )