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3Q40

Sulphur SAD structure solution of proteinase K grown in SO4-less solution.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Proteinase Kpolymer27928958.81UniProt (P06873)Engyodontium album (Engyodontium album)Endopeptidase K, Tritirachium alkaline proteinase
2B, C
(A)
CALCIUM IONnon-polymer40.12Chemie (CA)
3D, E, F, G, H...
(A)
NITRATE IONnon-polymer62.06Chemie (NO3)
4J
(A)
waterwater18.0390Chemie (HOH)
Sequence modifications
A: 1 - 279 (UniProt: P06873)
PDBExternal DatabaseDetails
Asp 207Ser 312SEE REMARK 999
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight28958.8
Non-Polymers*Number of molecules8
Total formula weight452.2
All*Total formula weight29411.0
*Water molecules are not included.

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PDB entries from 2026-01-14

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