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1SNG

Structure of a Thermophilic Serpin in the Native State

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
COG4826: Serine protease inhibitorpolymer37040138.81GenBank (48837130)
Pfam (PF00079)
UniProt (by SIFTS) (Q47NK3)
Thermobifida fusca
2B, C, D, E, F
(A)
SULFATE IONnon-polymer96.15Chemie (SO4)
3G
(A)
waterwater18.0456Chemie (HOH)
Sequence modifications
A: 3 - 368 (GenBank: 48837130)
PDBExternal DatabaseDetails
Gly -1-cloning artifact
Ser 0-cloning artifact
Val 1-cloning artifact
Ser 2-cloning artifact
Thr 78Ala 76conflict
Met 105Val 103conflict
Lys 165Arg 163conflict
Ala 179Glu 177conflict
Lys 198Gly 196conflict
Arg 209Gly 207conflict
Caf 41Cys 39modified residue
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight40138.8
Non-Polymers*Number of molecules5
Total formula weight480.3
All*Total formula weight40619.1
*Water molecules are not included.

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PDB entries from 2025-07-23

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