3508
By computed homology search , we noticed significant similarities between US3 PK and p21 - activated kinase ( PAK ) , which is activated by the Cdc42 or Rac .
 GENE: US3 PK; GENE: p21 - activated kinase; GENE: PAK; GENE: Cdc42; GENE: Rac
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: US3 PK; GENE: p21 - activated kinase; GENE: PAK; GENE: Cdc42; GENE: Rac