2bo9 is a 4 chain structure with sequence from Homo sapiens. This structure supersedes the now removed PDB entry 2bk7. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
↑Huang H, Reed CP, Zhang JS, Shridhar V, Wang L, Smith DI. Carboxypeptidase A3 (CPA3): a novel gene highly induced by histone deacetylase inhibitors during differentiation of prostate epithelial cancer cells. Cancer Res. 1999 Jun 15;59(12):2981-8. PMID:10383164