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5N1R

Crystal structure of human carbonic anhydrase II in complex with the inhibitor 4'-Pyrazol-1-ylmethyl-biphenyl-4-sulfonamide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Carbonic anhydrase 2polymer26029289.11UniProt (P00918)
Pfam (PF00194)
Homo sapiens (Human)Carbonate dehydratase II,Carbonic anhydrase C,CAC,Carbonic anhydrase II,CA-II
2B
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
3C
(A)
GLYCEROLnon-polymer92.11Chemie (GOL)
4D
(A)
4-[4-(pyrazol-1-ylmethyl)phenyl]benzenesulfonamidenon-polymer313.41Chemie (8GH)
5E
(A)
waterwater18.0339Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight29289.1
Non-Polymers*Number of molecules3
Total formula weight470.9
All*Total formula weight29759.9
*Water molecules are not included.

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PDB entries from 2026-01-21

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