1ERI

X-RAY STRUCTURE OF THE DNA-ECO RI ENDONUCLEASE-DNA RECOGNITION COMPLEX: THE RECOGNITION NETWORK AND THE INTEGRATION OF RECOGNITION AND CLEAVAGE

• PDB DOI: https://doi.org/10.2210/pdb1ERI/pdb
• Entry: 1ERI supersedes: 1R1E
• NAKB: 1ERI

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


• Deposited: 1994-05-18 Released: 1995-02-07 
• Deposition Author(s): Kim, Y., Grable, J.C., Love, R., Greene, P.J., Rosenberg, J.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.280 
• R-Value Work: 0.170 
• R-Value Observed: 0.170 

Literature

Refinement of Eco RI endonuclease crystal structure: a revised protein chain tracing.

Kim, Y.C., Grable, J.C., Love, R., Greene, P.J., Rosenberg, J.M.

(1990) Science 249: 1307-1309

• PubMed: 2399465 
• DOI: https://doi.org/10.1126/science.2399465
• Primary Citation of Related Structures:  
  1ERI

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Organizational Affiliation: 

Department of Biological Sciences, University of Pittsburgh, PA 15260.

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: 34.94 kDa 
• Atom Count: 2,375 
• Modelled Residue Count: 274 
• Deposited Residue Count: 289 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (ECO RI ENDONUCLEASE (E.C.3.1.21.4))	B [auth A]	276	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P00642 (Escherichia coli) Explore P00642  Go to UniProtKB:  P00642

Entity ID: 1
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*TP*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3')	A [auth B]	13	N/A

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.280 
• R-Value Work: 0.170 
• R-Value Observed: 0.170 
• 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	refinement
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-02-07 
Deposition Author(s): Kim, Y., Grable, J.C., Love, R., Greene, P.J., Rosenberg, J.M.
• This entry supersedes: 1R1E

Revision History  

• Version 1.0: 1995-02-07
  Type: Initial release
  
• Version 1.1: 2008-05-22
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references