tokens: 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 .
folded_tokens: 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 .
labels: O O O O O B-other_name I-other_name O B-protein_molecule O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule O O O O B-other_name I-other_name O