Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23751.86 
• Atom Count: 1657 
• Residue Count: 223 
• Unique protein chains: 1

1QCP

CRYSTAL STRUCTURE OF THE RWJ-51084 BOVINE PANCREATIC BETA-TRYPSIN AT 1.8 A

• DOI: 10.2210/pdb1QCP/pdb

• Classification: HYDROLASE
• Organism(s): Bos taurus


• Deposited: 1999-05-10 Released: 1999-05-21 
• Deposition Author(s): Recacha, R., Carson, M., Costanzo, M.J., Maryanoff, B., Chattopadhyay, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.8 Å
• R-Value Free: 0.237 
• R-Value Work: 0.175 

Literature

Structure of the RWJ-51084-bovine pancreatic beta-trypsin complex at 1.8 A.

Recacha, R., Carson, M., Costanzo, M.J., Maryanoff, B., DeLucas, L.J., Chattopadhyay, D.

(1999) Acta Crystallogr.,Sect.D 55: 1785-1791

• PubMed: 10531473 


• PubMed Abstract: 
  

The three-dimensional structure of bovine pancreatic trypsin complexed with the inhibitor RWJ-51084 has been determined at 1.8 A resolution. These crystals belong to the trigonal space group P3(1)21, with unit-cell parameters a = b = 53.43, c = 107.76 A. The refined R and R(free) values are 0.175 and 0.237, respectively. The carbonyl group bonded to the benzothiazole group of the inhibitor is covalently linked to the hydroxyl O atom of Ser195, forming a tetrahedral intermediate hemiketal structure. The other carbonyl O atom of the inhibitor forms a hydrogen bond with the Gln192 side-chain amide group. The benzothiazole group is oriented with the aromatic N atom of RWJ-51084 accepting a hydrogen bond from His57 NE2. The arginine side chain of the inhibitor extends into the deep and narrow pocket of the S1 specificity site of trypsin, forming a network of hydrogen bonds.

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Organizational Affiliation: 

Center for Macromolecular Crystallography, University of Alabama at Birmingham, Birmingham, Alabama 35294-0005, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (BETA-TRYPSIN PROTEIN)	A	223	Bos taurus	Mutation(s): 0  EC: 3.4.21.4
Find proteins for P00760 (Bos taurus) Go to UniProtKB:  P00760

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CA	A	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
RWJ	A	CYCLOPENTANECARBOXYLIC ACID [1-(BENZOTHIAZOLE-2-CARBONYL)-4-GUANIDINO-BUTYL]-AMIDE RWJ-51084 C19 H25 N5 O2 S NQABUEUFRXDDFI-AWEZNQCLSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
RWJ	Ki: 30 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.8 Å
• R-Value Free: 0.237 
• R-Value Work: 0.175 
• Space Group: P 3₁ 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 54.430	α = 90.00
b = 54.430	β = 90.00
c = 107.760	γ = 120.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
X-PLOR	model building
CNS	refinement
DENZO	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-05-10 
• Released Date: 1999-05-21 
• Deposition Author(s): Recacha, R., Carson, M., Costanzo, M.J., Maryanoff, B., Chattopadhyay, D.

Revision History 

• Version 1.0: 1999-05-21
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance