7RSA

STRUCTURE OF PHOSPHATE-FREE RIBONUCLEASE A REFINED AT 1.26 ANGSTROMS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.26 Å
  • R-Value Observed: 0.150 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of phosphate-free ribonuclease A refined at 1.26 A.

Wlodawer, A.Svensson, L.A.Sjolin, L.Gilliland, G.L.

(1988) Biochemistry 27: 2705-2717

  • DOI: 10.1021/bi00408a010
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The structure of phosphate-free bovine ribonuclease A has been refined at 1.26-A resolution by a restrained least-squares procedure to a final R factor of 0.15. X-ray diffraction data were collected with an electronic position-sensitive detector. The ...

    The structure of phosphate-free bovine ribonuclease A has been refined at 1.26-A resolution by a restrained least-squares procedure to a final R factor of 0.15. X-ray diffraction data were collected with an electronic position-sensitive detector. The final model consists of all atoms in the polypeptide chain including hydrogens, 188 water sites with full or partial occupancy, and a single molecule of 2-methyl-2-propanol. Thirteen side chains were modeled with two alternate conformations. Major changes to the active site include the addition of two waters in the phosphate-binding pocket, disordering of Gln-11, and tilting of the imidazole ring of His-119. The structure of the protein and of the associated solvent was extensively compared with three other high-resolution, refined structures of this enzyme.


    Related Citations: 
    • Multiple Conformations of Amino Acid Residues in Ribonuclease A
      Svensson, L.A., Sjolin, L., Gilliland, G.L., Finzel, B.C., Wlodawer, A.
      (1986) Proteins 1: 370
    • Comparison of Two Independently Refined Models of Ribonuclease A
      Wlodawer, A., Borkakoti, N., Moss, D.S., Howlin, B.
      (1986) Acta Crystallogr B 42: 379
    • The Refined Crystal Structure of Ribonuclease A at 2.0 Angstroms Resolution
      Wlodawer, A., Bott, R., Sjolin, L.
      (1982) J Biol Chem .257: 1325

    Organizational Affiliation

    Center for Chemical Physics, National Bureau of Standards, Gaithersburg, Maryland 20899.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RIBONUCLEASE A
A
124Bos taurusMutation(s): 0 
Gene Names: RNASE1RNS1
EC: 3.1.27.5 (PDB Primary Data), 4.6.1.18 (UniProt)
Find proteins for P61823 (Bos taurus)
Go to UniProtKB:  P61823
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TBU
Query on TBU

Download CCD File 
A
TERTIARY-BUTYL ALCOHOL
C4 H10 O
DKGAVHZHDRPRBM-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.26 Å
  • R-Value Observed: 0.150 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 30.18α = 90
b = 38.4β = 105.85
c = 53.32γ = 90
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1988-10-09
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance