1QL7

FACTOR XA SPECIFIC INHIBITOR IN COMPLEX WITH BOVINE TRYPSIN

• PDB DOI: https://doi.org/10.2210/pdb1QL7/pdb

• Classification: SERINE PROTEASE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 1999-08-24 Released: 2000-08-25 
• Deposition Author(s): Stubbs, M.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Work: 0.200 
• R-Value Observed: 0.200 

Literature

Ph-Dependent Binding Modes Observed in Trypsin Crystals: Lessons for the Structure-Based Drug Design

Stubbs, M.T., Reyda, S., Dullweber, F., Moeller, M., Klebe, G., Dorsch, D., Mederski, W.W.K.R., Wurziger, H.

(2002) Chembiochem 3: 246

• PubMed: 11921406 
• DOI: https://doi.org/10.1002/1439-7633(20020301)3:2/3<246::aid-cbic246>3.0.co;2-#
• Primary Citation of Related Structures:  
  1QL7, 1QL8

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Organizational Affiliation: 

Institut für Pharmazeutische Chemie der Philipps-Universität Marburg, Marbacher Weg 6, 35032 Marburg, Germany. [e-mail]

Biological Assembly 1  

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

Biological assembly 1 generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 23.96 kDa 
• Atom Count: 1,762 
• Modelled Residue Count: 223 
• Deposited Residue Count: 223 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRYPSIN	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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZEN	D [auth A]	[4-(6-CHLORO-NAPHTHALENE-2-SULFONYL)-PIPERAZIN-1-YL]- (3,4,5,6-TETRAHYDRO-2H-[1,4']BIPYRIDINYL-4-YL)- METHANONE C25 H27 Cl N4 O3 S ZLAKCKVFSRSENR-UHFFFAOYSA-N
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
ZEN	PDBBind:  1QL7	Kd: 1.00e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Work: 0.200 
• R-Value Observed: 0.200 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.06	α = 90
b = 58.58	β = 90
c = 63.14	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-08-25 
Deposition Author(s): Stubbs, M.T.

Revision History  

• Version 1.0: 2000-08-25
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-07-05
  Changes: Data collection