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1CNK

X-RAY CRYSTALLOGRAPHIC STUDIES OF ENGINEERED HYDROGEN BOND NETWORKS IN A PROTEIN-ZINC BINDING SITE

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
CARBONIC ANHYDRASE IIpolymer25929142.91UniProt (P00918)
Pfam (PF00194)
Homo sapiens (human)
2B
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
3C
(A)
SULFATE IONnon-polymer96.11Chemie (SO4)
4D
(A)
waterwater18.0169Chemie (HOH)
Sequence modifications
A: 2 - 261 (UniProt: P00918)
PDBExternal DatabaseDetails
Leu 92Gln 91conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight29142.9
Non-Polymers*Number of molecules2
Total formula weight161.5
All*Total formula weight29304.4
*Water molecules are not included.

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PDB entries from 2025-07-30

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