11485
To examine the factors controlling vascular-specific expression of PECAM-1 , we cloned the 5'-flanking region of the PECAM-1 gene and analyzed its transcriptional activity .
 DNA: PECAM-1 gene; protein: PECAM-1; protein: PECAM-1; DNA: 5'-flanking region
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: PECAM-1 gene, PECAM-1, PECAM-1, 5'-flanking region 
Answer:
 DNA: PECAM-1 gene; protein: PECAM-1; protein: PECAM-1; DNA: 5'-flanking region