1QPS | pdb_00001qps

THE CRYSTAL STRUCTURE OF A POST-REACTIVE COGNATE DNA-ECO RI COMPLEX AT 2.50 A IN THE PRESENCE OF MN2+ ION

• PDB DOI: https://doi.org/10.2210/pdb1QPS/pdb
• NAKB: 1QPS

• Classification: HYDROLASE/DNA
• Organism(s): Escherichia coli
• Mutation(s): No 


• Deposited: 1999-05-28 Released: 1999-06-14 
• Deposition Author(s): Horvath, M., Choi, J., Kim, Y., Wilkosz, P., Rosenberg, J.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å

Literature

The Integration of Recognition and Cleavage: X-Ray Structures of Pre- Transition State and Post-Reactive DNA-Eco RI Endonuclease Complexes

Horvath, M.M., Choi, J., Kim, Y., Wilkosz, P., Rosenberg, J.M.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 33.15 kDa 
• Atom Count: 2,361 
• Modeled Residue Count: 274 
• Deposited Residue Count: 274 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

Macromolecules

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
ENDONUCLEASE ECORI	C [auth A]	261	Escherichia coli	Mutation(s): 0  EC: 3.1.21.4
UniProt
Find proteins for P00642 (Escherichia coli) Explore P00642  Go to UniProtKB:  P00642

Entity ID: 1
Molecule	Chains	Length	Organism	Image
5'-D(*TP*CP*GP*CP*GP*)-3'	A [auth M]	5	N/A

Entity ID: 2
Molecule	Chains	Length	Organism	Image
5'-D(*AP*AP*TP*TP*CP*GP*CP*GP*)-3'	B [auth N]	8	N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MN	D [auth A]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å

Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.4	α = 90
b = 118.4	β = 90
c = 49.7	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-GEN	data reduction
X-GEN	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-06-14 
Deposition Author(s): Horvath, M., Choi, J., Kim, Y., Wilkosz, P., Rosenberg, J.M.

Revision History  

• Version 1.0: 1999-06-14
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-01-11
  Changes: Other
• Version 1.4: 2017-10-04
  Changes: Refinement description
• Version 1.5: 2018-01-31
  Changes: Experimental preparation
• Version 1.6: 2024-02-14
  Changes: Data collection, Database references, Derived calculations