The amplified genomic MCP-2 fragment was used to isolate an MCP-2 cosmid from which the gene sequence was determined.
Analysis of 1.4 kb of 5 ' - flanking DNA sequence in the ST3 gene promoter revealed the presence of putative regulatory elements , but no consensus sequence for AP1-binding site in contrast to other MMP promoters.
The 5 ' - flanking region of poly (ADP-ribose) polymerase gene also showed promoter activity in chloramphenicol acetyltransferase assay and structural similarity to that of DNA polymerase beta gene.
Poly (ADP-ribose) polymerase (PARP) , a nuclear enzyme activated by DNA strand breaks , physiologically participates in DNA repair.