8737
In this study , to characterize the gene for protein Z , its organization and structure were determined by a combination of PCR amplification of leukocyte DNA and isolation of phage clones from a human genomic library .
 GENE: protein Z
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: protein Z 
Answer:
 GENE: protein Z