https://www.ncbi.nlm.nih.gov/Structure/pdb/4YZA
4YZA: C. bescii Family 3 pectate lyase double mutant K108A/Q111A in complex with trigalacturonic...
Pectate lyase(4R)-2-METHYLPENTANE-2,4-DIOL(4S)-2-METHYL-2,4-PENTANEDIOLCALCIUM IONIMIDAZOLEalpha-D-galactopyranuronic acidalpha-D-talopyranuronic...