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4Y0Y

Trypsin in complex with with BPTI

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(E)
Cationic trypsinpolymer22323324.31UniProt (P00760)
Pfam (PF00089)
Bos taurus (cattle)Beta-trypsin
2B
(I)
Pancreatic trypsin inhibitorpolymer586527.61UniProt (P00974)
Pfam (PF00014)
Bos taurusAprotinin,Basic protease inhibitor,BPTI
3C, D, E, F, J...
(E, I)
SULFATE IONnon-polymer96.19Chemie (SO4)
4G, H
(E)
GLYCEROLnon-polymer92.12Chemie (GOL)
5I
(E)
CALCIUM IONnon-polymer40.11Chemie (CA)
6O, P
(E, I)
waterwater18.0344Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight29851.9
Non-Polymers*Number of molecules12
Total formula weight1088.8
All*Total formula weight30940.7
*Water molecules are not included.

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PDB entries from 2025-06-11

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