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1BRA

RELOCATING A NEGATIVE CHARGE IN THE BINDING POCKET OF TRYPSIN

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
TRYPSINpolymer22323814.81UniProt (P00763)
Pfam (PF00089)
Rattus rattus (black rat)
2B
(A)
CALCIUM IONnon-polymer40.11Chemie (CA)
3C
(A)
BENZAMIDINEnon-polymer120.21Chemie (BEN)
4D
(A)
waterwater18.0137Chemie (HOH)
Sequence modifications
A: 16 - 245 (UniProt: P00763)
PDBExternal DatabaseDetails
Gly 189Asp 194conflict
Asp 226Gly 227conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight23814.8
Non-Polymers*Number of molecules2
Total formula weight160.2
All*Total formula weight23975.1
*Water molecules are not included.

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PDB entries from 2025-07-16

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