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4R9I

Crystal structure of cysteine proteinase inhibitor Serpin18 from Bombyx mori

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Serpin-18polymer37842904.41UniProt (C0J8G7)
Pfam (PF00079)
Bombyx mori (silkworm)serine/cysteine proteinase inhibitor
2B
(A)
SODIUM IONnon-polymer23.01Chemie (NA)
3C
(A)
CITRATE ANIONnon-polymer189.11Chemie (FLC)
4D
(A)
BETA-MERCAPTOETHANOLnon-polymer78.11Chemie (BME)
5E
(A)
waterwater18.0518Chemie (HOH)
Sequence modifications
A: 21 - 392 (UniProt: C0J8G7)
PDBExternal DatabaseDetails
His 15-expression tag
His 16-expression tag
His 17-expression tag
His 18-expression tag
His 19-expression tag
Met 20-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight42904.4
Non-Polymers*Number of molecules3
Total formula weight290.2
All*Total formula weight43194.7
*Water molecules are not included.

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PDB entries from 2024-11-13

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