1WSH | pdb_00001wsh

Crystal structure of E.coli RNase HI active site mutant (E48A/K87A)

• PDB DOI: https://doi.org/10.2210/pdb1WSH/pdb

• Classification: HYDROLASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2004-11-07 Released: 2004-11-23 
• Deposition Author(s): Tsunaka, Y., Takano, K., Matsumura, H., Yamagata, Y., Kanaya, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.260 (Depositor) 
• R-Value Work: 
  0.223 (Depositor) 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 70.03 kDa 
• Atom Count: 5,094 
• Modeled Residue Count: 596 
• Deposited Residue Count: 620 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribonuclease HI	A, B, C, D	155	Escherichia coli	Mutation(s): 2  EC: 3.1.26.4
UniProt
Find proteins for P0A7Y4 (Escherichia coli (strain K12)) Explore P0A7Y4  Go to UniProtKB:  P0A7Y4

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.260 (Depositor) 
• R-Value Work:  0.223 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 120.931	α = 90
b = 79.92	β = 90
c = 64.877	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-11-23 
Deposition Author(s): Tsunaka, Y., Takano, K., Matsumura, H., Yamagata, Y., Kanaya, S.

Revision History  

• Version 1.0: 2004-11-23
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-11-10
  Changes: Database references
• Version 1.4: 2024-05-29
  Changes: Data collection