1QCV

RUBREDOXIN VARIANT (PFRD-XC4) FOLDS WITHOUT IRON


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 29 
  • Selection Criteria: STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS & LOWEST ENERGY 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Contribution of surface salt bridges to protein stability.

Strop, P.Mayo, S.L.

(2000) Biochemistry 39: 1251-1255

  • DOI: 10.1021/bi992257j
  • Primary Citation of Related Structures:  
    1QCV

  • PubMed Abstract: 
  • The role of surface salt bridges in protein stabilization has been a source of controversy. Here we present the NMR structure of a hyperthermophilic rubredoxin variant (PFRD-XC4) and the thermodynamic analysis of two surface salt bridges by double mutant cycles ...

    The role of surface salt bridges in protein stabilization has been a source of controversy. Here we present the NMR structure of a hyperthermophilic rubredoxin variant (PFRD-XC4) and the thermodynamic analysis of two surface salt bridges by double mutant cycles. This analysis shows that the surface side chain to side chain salt bridge between Lys 6 and Glu 49 does not stabilize PFRD-XC4. The main chain to side chain salt bridge between the N-terminus and Glu 14 was, however, found to stabilize PFRD-XC4 by 1. 5 kcal mol(-)(1). The entropic cost of making a surface salt bridge involving the protein's backbone is reduced, since the backbone has already been immobilized upon protein folding.


    Related Citations: 
    • Rubredoxin Variant Folds without Iron
      Strop, P., Mayo, S.L.
      (1999) J Am Chem Soc 121: 2341

    Organizational Affiliation

    Biochemistry Option, California Institute of Technology, Pasadena, California 91125, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (RUBREDOXIN VARIANT PFRD-XC4)A53Pyrococcus furiosusMutation(s): 4 
UniProt
Find proteins for P24297 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Explore P24297 
Go to UniProtKB:  P24297
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24297
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 29 
  • Selection Criteria: STRUCTURES WITH THE LEAST RESTRAINT VIOLATIONS & LOWEST ENERGY 
  • OLDERADO: 1QCV Olderado

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 1999-05-10 
  • Released Date: 2000-02-18 
  • Deposition Author(s): Strop, P., Mayo, S.L.

Revision History  (Full details and data files)

  • Version 1.0: 2000-02-18
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-03-14
    Changes: Database references, Derived calculations, Experimental preparation