2KLK

Solution structure of GB1 A34F mutant with RDC and SAXS


Experimental Data Snapshot

  • Method: SOLUTION SCATTERING

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Determination of multicomponent protein structures in solution using global orientation and shape restraints.

Wang, J.Zuo, X.Yu, P.Byeon, I.J.Jung, J.Wang, X.Dyba, M.Seifert, S.Schwieters, C.D.Qin, J.Gronenborn, A.M.Wang, Y.X.

(2009) J Am Chem Soc 131: 10507-10515

  • DOI: https://doi.org/10.1021/ja902528f
  • Primary Citation of Related Structures:  
    2KLJ, 2KLK, 2KLM

  • PubMed Abstract: 

    Determining architectures of multicomponent proteins or protein complexes in solution is a challenging problem. Here we report a methodology that simultaneously uses residual dipolar couplings (RDC) and the small-angle X-ray scattering (SAXS) restraints to mutually orient subunits and define the global shape of multicomponent proteins and protein complexes. Our methodology is implemented in an efficient algorithm and demonstrated using five examples. First, we demonstrate the general approach with simulated data for the HIV-1 protease, a globular homodimeric protein. Second, we use experimental data to determine the structures of the two-domain proteins L11 and gammaD-Crystallin, in which the linkers between the domains are relatively rigid. Finally, complexes with K(d) values in the high micro- to millimolar range (weakly associating proteins), such as a homodimeric GB1 variant, and with K(d) values in the nanomolar range (tightly bound), such as the heterodimeric complex of the ILK ankyrin repeat domain (ARD) and PINCH LIM1 domain, respectively, are evaluated. Furthermore, the proteins or protein complexes that were determined using this method exhibit better solution structures than those obtained by either NMR or X-ray crystallography alone as judged based on the pair-distance distribution functions (PDDF) calculated from experimental SAXS data and back-calculated from the structures.


  • Organizational Affiliation

    Protein Nucleic Acid Interaction Section, National Cancer Institute at Frederick, National Institutes of Health, Frederick, Maryland 21702, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
IMMUNOGLOBULIN G-BINDING PROTEIN G
A, B
56Staphylococcus aureusMutation(s): 0 
UniProt
Find proteins for P06654 (Streptococcus sp. group G)
Explore P06654 
Go to UniProtKB:  P06654
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06654
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION SCATTERING
  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-10-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Data collection, Database references, Derived calculations