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4K0S

Structure of HCAIX mimic (HCAII with 5 mutations in active site) in complex with acetazolamide

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Carbonic anhydrase 2polymer25728900.61UniProt (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)
5-ACETAMIDO-1,3,4-THIADIAZOLE-2-SULFONAMIDEnon-polymer222.21Chemie (AZM)
4D
(A)
waterwater18.0266Chemie (HOH)
Sequence modifications
A: 4 - 261 (UniProt: P00918)
PDBExternal DatabaseDetails
Ser 65Ala 65engineered mutation
Gln 67Asn 67engineered mutation
Thr 69Glu 69engineered mutation
Leu 131Phe 130engineered mutation
Glu 170Lys 169engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight28900.6
Non-Polymers*Number of molecules2
Total formula weight287.7
All*Total formula weight29188.2
*Water molecules are not included.

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PDB entries from 2025-06-11

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