PDB R. Image from RCSB PDB (www.rcsb.org) of PDB ID 4TN9 (Bauer R, Janowska K, Taylor K, et al.) 2015) Structures of three polycystiuc kidney disease-like domains from Clostridium histolyticum collagenase ColG and ColH. Acta Crystallogra Sci Sect D 71:565-77). 2015 (accessed 22 February 2017 2017).