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2OCT

Stefin B (Cystatin B) tetramer

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B
(A, B)
Cystatin Bpolymer9811163.52UniProt (P04080)
Pfam (PF00031)
Homo sapiens (human)Liver thiol proteinase inhibitor, CPI-B, Stefin B
2C, D
(A, B)
waterwater18.0172Chemie (HOH)
Sequence modifications
A, B: 1 - 98 (UniProt: P04080)
PDBExternal DatabaseDetails
Ser 3Cys 3engineered mutation
Tyr 31Glu 31variant
Ser 79Pro 79engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight22327.1
All*Total formula weight22327.1
*Water molecules are not included.

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PDB entries from 2025-07-23

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