1IPK

CRYSTAL STRUCTURES OF RECOMBINANT AND NATIVE SOYBEAN BETA-CONGLYCININ BETA HOMOTRIMERS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.205 

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This is version 1.3 of the entry. See complete history


Literature

Crystal structures of recombinant and native soybean beta-conglycinin beta homotrimers.

Maruyama, N.Adachi, M.Takahashi, K.Yagasaki, K.Kohno, M.Takenaka, Y.Okuda, E.Nakagawa, S.Mikami, B.Utsumi, S.

(2001) Eur J Biochem 268: 3595-3604

  • DOI: 10.1046/j.1432-1327.2001.02268.x
  • Primary Citation of Related Structures:  
    1IPK, 1IPJ

  • PubMed Abstract: 
  • The crystal structures of recombinant and native beta homotrimers of soybean beta-conglycinin were determined by X-ray crystallography at 2.7 and 2.8 A resolutions, respectively. The crystals of the recombinant and native beta homotrimers belong to space group P21 with cell parameters a = 80 ...

    The crystal structures of recombinant and native beta homotrimers of soybean beta-conglycinin were determined by X-ray crystallography at 2.7 and 2.8 A resolutions, respectively. The crystals of the recombinant and native beta homotrimers belong to space group P21 with cell parameters a = 80.51 A, b = 63.48 A, c = 131.43 A, and beta = 90.01 degrees and with cell parameters a = 82.78 A, b = 69.47 A, c = 125.33 A and beta = 97.22 degrees, respectively. The beta monomers consist of amino-terminal and carboxyl-terminal modules that are very similar to each other and are related by a pseudo-dyad axis. Each module of the beta monomer is subdivided into a core and a loop domain. These structural features of both beta homotrimers are consistent with those of canavalin and phaseolin, which are similar vicilin class proteins. The superposition of the models of the native and recombinant beta monomers shows a root mean square deviation of 0.43-0.51 A for 343 common Calpha atoms within 2.0 A. This result indicates that the N-linked glycans do not influence the final structure of the beta homotrimer. Comparison of the models of beta-conglycinin, phaseolin and canavalin indicates that beta-conglycinin resembles canavalin rather than phaseolin, and that canavalin and phaseolin differ the most among them. The evolutional relationships are discussed.


    Organizational Affiliation

    Research Institute for Food Science, Kyoto University, Uji, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-CONGLYCININ, BETA CHAINA, B, C416Glycine maxMutation(s): 0 
Gene Names: CG-4GLYMA_20G146200
UniProt
Find proteins for P25974 (Glycine max)
Explore P25974 
Go to UniProtKB:  P25974
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.205 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.51α = 90
b = 63.48β = 90.01
c = 131.43γ = 90
Software Package:
Software NamePurpose
FRAMBOdata collection
SAINTdata reduction
SAINTdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-05-16
    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: 2017-10-04
    Changes: Refinement description