1070
Transfecting the cloned bovine PBR / IBP cDNA into COS - 7 cells resulted in an 11 - fold increase in the density of high affinity [ 3H ] PK 11195 binding sites which had only low affinity for Ro5 - 4864 .
 GENE: PBR; GENE: IBP
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: PBR, IBP 
Answer:
 GENE: PBR; GENE: IBP