Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/3Q5V
Tt-IPPaseMAGNESIUM IONSULFATE ION
inorganic pyrophosphatasethermococcus thioreducensstructure
https://www.rcsb.org/structure/3TR4
Structure of an inorganic pyrophosphatase (ppa) from Coxiella burnetii
inorganic pyrophosphatasercsbpdbstructureppa