1J8A

CRYSTAL STRUCTURE OF BENZAMIDINE INHIBITED BOVINE PANCREATIC TRYPSIN AT 105K TO 1.21A RESOLUTION FROM LABORATORY SOURCE WITH HIGH NUMBER OF WATERS MODELLED

• PDB DOI: https://doi.org/10.2210/pdb1J8A/pdb

• Classification: HYDROLASE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2001-05-21 Released: 2001-09-12 
• Deposition Author(s): Cuesta-Seijo, J.A., Garcia-Granda, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.21 Å
• R-Value Free: 0.178 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 

Starting Model: experimental

Literature

Trypsin as a model for high resolution X-ray diffraction in proteins.

Cuesta-Seijo, J.A., Garcia-Granda, S.

(2002) Bol R Soc Hist Nat Sec Geol 97: 123-129

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 24.08 kDa 
• Atom Count: 2,139 
• Modelled Residue Count: 223 
• Deposited Residue Count: 223 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRYPSINOGEN, CATIONIC	A	223	Bos taurus	Mutation(s): 0  EC: 3.4.21.4
UniProt
Find proteins for P00760 (Bos taurus) Explore P00760  Go to UniProtKB:  P00760

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRS	G [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
BEN	F [auth A]	BENZAMIDINE C7 H8 N2 PXXJHWLDUBFPOL-UHFFFAOYSA-N
SO4	C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	H [auth A], I [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.21 Å
• R-Value Free: 0.178 
• R-Value Work: 0.160 
• R-Value Observed: 0.161 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.275	α = 90
b = 58.568	β = 90
c = 66.141	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-09-12 
Deposition Author(s): Cuesta-Seijo, J.A., Garcia-Granda, S.

Revision History  

• Version 1.0: 2001-09-12
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2023-08-16
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-16
  Changes: Structure summary