5RSA

COMPARISON OF TWO INDEPENDENTLY REFINED MODELS OF RIBONUCLEASE-A

• PDB DOI: https://doi.org/10.2210/pdb5RSA/pdb
• Entry: 5RSA supersedes: 4RSA

• Classification: Hydrolase/RNA
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 1985-04-29 Released: 1985-07-17 
• Deposition Author(s): Wlodawer, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.159 

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• Method: NEUTRON DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.183 

Literature

Comparison of Two Independently Refined Models of Ribonuclease-A

Wlodawer, A., Borkakoti, N., Moss, D.S., Howlin, B.

(1986) Acta Crystallogr B 42: 379

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.8 kDa 
• Atom Count: 1,084 
• Modelled Residue Count: 124 
• Deposited Residue Count: 124 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RIBONUCLEASE A	A	124	Bos taurus	Mutation(s): 0  EC: 3.1.27.5
UniProt
Find proteins for P61823 (Bos taurus) Explore P61823  Go to UniProtKB:  P61823

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	B [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.159 
• Space Group: P 1 2₁ 1

• Method: NEUTRON DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.183 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 30.18	α = 90
b = 38.4	β = 105.85
c = 53.32	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1985-07-17 
Deposition Author(s): Wlodawer, A.
• This entry supersedes: 4RSA

Revision History  

• Version 1.0: 1985-07-17
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Data collection, Non-polymer description, Version format compliance
• Version 1.3: 2018-10-24
  Changes: Data collection, Other, Structure summary
• Version 1.4: 2023-03-15
  Changes: Database references, Derived calculations, Refinement description