1QJI

Structure of astacin with a transition-state analogue inhibitor

• PDB DOI: https://doi.org/10.2210/pdb1QJI/pdb

• Classification: HYDROLASE(METALLOPROTEINASE)
• Organism(s): Astacus astacus
• Mutation(s): No 


• Deposited: 1999-06-24 Released: 2000-01-21 
• Deposition Author(s): Grams, F., Bode, W., Stocker, W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.14 Å
• R-Value Work: 0.164 
• R-Value Observed: 0.164 

Starting Model: experimental

Literature

Structure of Astacin with a Transition-State Analogue Inhibitor

Grams, F., Dive, V., Yiotakis, A., Yiallouros, I., Vassiliou, S., Zwilling, R., Bode, W., Stocker, W.

(1996) Nat Struct Biol 3: 671

• PubMed: 8756323 
• DOI: https://doi.org/10.1038/nsb0896-671
• Primary Citation of Related Structures:  
  1QJI, 1QJJ

Biological Assembly 1  

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

Biological assembly 1 generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 23.43 kDa 
• Atom Count: 1,808 
• Modelled Residue Count: 200 
• Deposited Residue Count: 200 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ASTACIN	A	200	Astacus astacus	Mutation(s): 0  EC: 3.4.24.21
UniProt
Find proteins for P07584 (Astacus astacus) Explore P07584  Go to UniProtKB:  P07584

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PKF	C [auth A]	CARBOBENZOXY-PRO-LYS-PHE-Y(PO2)-ALA-PRO-OME C36 H52 N6 O9 P JVJRALIDWYDPLY-HEPRJOMSSA-O
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
PKF	PDBBind:  1QJI	Ki: 1.40e+4 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.14 Å
• R-Value Work: 0.164 
• R-Value Observed: 0.164 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.17	α = 90
b = 61.17	β = 90
c = 99.56	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	refinement
MADNESS	data reduction
PROTEIN	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-01-21 
Deposition Author(s): Grams, F., Bode, W., Stocker, W.

Revision History  

• Version 1.0: 2000-01-21
  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
• Version 1.4: 2017-07-12
  Changes: Refinement description
• Version 1.5: 2019-05-08
  Changes: Data collection, Experimental preparation
• Version 1.6: 2023-12-13
  Changes: Data collection, Database references, Refinement description
• Version 1.7: 2024-10-16
  Changes: Structure summary