Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/6IM0 6IM0: Crystal structure of a highly thermostable carbonic anhydrase from Persephonella marina EX-H1 Carbonic anhydrase (Carbonate dehydratase)BICARBONATE IONCALCIUM IONTETRAETHYLENE GLYCOLZINC ION