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1K1L

BOVINE TRYPSIN-INHIBITOR COMPLEX

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
TRYPSINpolymer22323324.31UniProt (P00760)
Pfam (PF00089)
Bos taurus (cattle)TRYPSINOGEN, BETA-TRYPSIN
2B
(A)
SULFATE IONnon-polymer96.11Chemie (SO4)
3C
(A)
CALCIUM IONnon-polymer40.11Chemie (CA)
4D
(A)
N-ALPHA-(2-NAPHTHYLSULFONYL)-3-AMIDINO-L-PHENYLALANINE PIPERAZIDEnon-polymer465.61Chemie (FD3)
5E
(A)
waterwater18.0106Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight23324.3
Non-Polymers*Number of molecules3
Total formula weight601.7
All*Total formula weight23926.0
*Water molecules are not included.

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PDB entries from 2026-03-25

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