3qev is a 3 chain structure with sequence from Bpr69. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[DPOL_BPR69] This polymerase possesses two enzymatic activities: DNA synthesis (polymerase) and an exonucleolytic activity that degrades single stranded DNA in the 3'- to 5'-direction.