1CB7

GLUTAMATE MUTASE FROM CLOSTRIDIUM COCHLEARIUM RECONSTITUTED WITH METHYL-COBALAMIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.218 
  • R-Value Observed: 0.160 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Glutamate mutase from Clostridium cochlearium: the structure of a coenzyme B12-dependent enzyme provides new mechanistic insights.

Reitzer, R.Gruber, K.Jogl, G.Wagner, U.G.Bothe, H.Buckel, W.Kratky, C.

(1999) Structure 7: 891-902

  • DOI: https://doi.org/10.1016/s0969-2126(99)80116-6
  • Primary Citation of Related Structures:  
    1CB7, 1CCW

  • PubMed Abstract: 

    Glutamate mutase (Glm) equilibrates (S)-glutamate with (2S,3S)-3-methylaspartate. Catalysis proceeds with the homolytic cleavage of the organometallic bond of the cofactor to yield a 5'-desoxyadenosyl radical. This radical then abstracts a hydrogen atom from the protein-bound substrate to initiate the rearrangement reaction. Glm from Clostridium cochlearium is a heterotetrameric molecule consisting of two sigma and two epsilon polypeptide chains.


  • Organizational Affiliation

    Abteilung für Strukturbiologie, Institut für Physikalische Chemie, Karl-Franzens-Universität, Graz, Austria.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (GLUTAMATE MUTASE)
A, C
137Clostridium cochleariumMutation(s): 0 
Gene Names: GLMS
EC: 5.4.99.1
UniProt
Find proteins for P80078 (Clostridium cochlearium)
Explore P80078 
Go to UniProtKB:  P80078
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP80078
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN (GLUTAMATE MUTASE)
B, D
483Clostridium cochleariumMutation(s): 0 
Gene Names: GLME
EC: 5.4.99.1
UniProt
Find proteins for P80077 (Clostridium cochlearium)
Explore P80077 
Go to UniProtKB:  P80077
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP80077
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
TAR Binding MOAD:  1CB7 Ki: 1.00e+7 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.218 
  • R-Value Observed: 0.160 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.33α = 90
b = 113.14β = 95.62
c = 108.61γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
SHELXL-97refinement
DENZOdata reduction
CCP4data scaling
X-PLORphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-02-28
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-11-06
    Changes: Data collection, Database references
  • Version 1.4: 2023-12-27
    Changes: Data collection, Database references, Derived calculations