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3HS4

Human carbonic anhydrase II complexed with acetazolamide

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)Carbonic anhydrase II, CA-II, Carbonate dehydratase II, Carbonic anhydrase C, CAC
2B
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
3C
(A)
GLYCEROLnon-polymer92.11Chemie (GOL)
4D, E, F
(A)
5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONAMIDEnon-polymer222.23Chemie (AZM)
5G
(A)
waterwater18.0404Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight29289.1
Non-Polymers*Number of molecules5
Total formula weight824.2
All*Total formula weight30113.3
*Water molecules are not included.

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PDB entries from 2025-12-10

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