1H8X

Domain-swapped Dimer of a Human Pancreatic Ribonuclease Variant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.196 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The Structure of an Engineered Domain-Swapped Ribonuclease Dimer and its Implications for the Evolution of Proteins Toward Oligomerization

Canals, A.Pous, J.Guasch, A.Benito, A.Ribo, M.Vilanova, M.Coll, M.

(2001) Structure 9: 967

  • DOI: 10.1016/s0969-2126(01)00659-1
  • Primary Citation of Related Structures:  
    1H8X

  • PubMed Abstract: 
  • Domain swapping has been proposed as a mechanism that explains the evolution from monomeric to oligomeric proteins. Bovine and human pancreatic ribonucleases are monomers with no biological properties other than their RNA cleavage ability. In contrast, the closely related bovine seminal ribonuclease is a natural domain-swapped dimer that has special biological properties, such as cytotoxicity to tumour cells ...

    Domain swapping has been proposed as a mechanism that explains the evolution from monomeric to oligomeric proteins. Bovine and human pancreatic ribonucleases are monomers with no biological properties other than their RNA cleavage ability. In contrast, the closely related bovine seminal ribonuclease is a natural domain-swapped dimer that has special biological properties, such as cytotoxicity to tumour cells. Several recombinant ribonuclease variants are domain-swapped dimers, but a structure of this kind has not yet been reported for the human enzyme.


    Organizational Affiliation

    Laboratori d'Enginyeria de Proteïnes, Facultat de Ciències, Universitat de Girona, Campus de Montilivi, Girona E-17071, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RIBONUCLEASE 1 AB128Homo sapiensMutation(s): 6 
Gene Names: PM8RNASE1RIB1RNS1
EC: 3.1.27.5 (PDB Primary Data), 4.6.1.18 (UniProt)
Find proteins for P07998 (Homo sapiens)
Explore P07998 
Go to UniProtKB:  P07998
NIH Common Fund Data Resources
PHAROS:  P07998
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.61α = 90
b = 61.43β = 90
c = 75.14γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-02-14
    Type: Initial release
  • Version 1.1: 2011-05-07
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance