3I7X

High pressure structure of I106A RNase A variant (0.35 GPa)

• PDB DOI: https://doi.org/10.2210/pdb3I7X/pdb

• Classification: HYDROLASE
• Organism(s): Bos taurus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2009-07-09 Released: 2009-08-04 
• Deposition Author(s): Lewinski, K., Kurpiewska, K., Dziubek, K., Katrusiak, A., Font, J., Ribo, M., Vilanova, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.241 
• R-Value Work: 0.188 

Starting Model: experimental

Literature

Structural investigation of ribonuclease A conformational preferences using high pressure protein crystallography

Kurpiewska, K., Dziubek, K., Katrusiak, A., Font, J., Ribo, M., Vilanova, M., Lewinski, K.

(2016) Chem Phys 468: 53-62

• DOI: https://doi.org/10.1016/j.chemphys.2016.01.010

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.74 kDa 
• Atom Count: 992 
• Modelled Residue Count: 124 
• Deposited Residue Count: 124 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribonuclease pancreatic	A	124	Bos taurus	Mutation(s): 1  EC: 3.1.27.5
UniProt
Find proteins for P61823 (Bos taurus) Go to UniProtKB:  P61823

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	B [auth A], C [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.241 
• R-Value Work: 0.188 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.34	α = 90
b = 64.34	β = 90
c = 63.633	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-08-04 
Deposition Author(s): Lewinski, K., Kurpiewska, K., Dziubek, K., Katrusiak, A., Font, J., Ribo, M., Vilanova, M.

Revision History  

• Version 1.0: 2009-08-04
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-08-09
  Changes: Database references
• Version 1.3: 2017-11-01
  Changes: Refinement description
• Version 1.4: 2021-11-10
  Changes: Database references, Derived calculations
• Version 1.5: 2023-11-01
  Changes: Data collection, Refinement description