1HTP

REFINED STRUCTURES AT 2 ANGSTROMS AND 2.2 ANGSTROMS OF THE TWO FORMS OF THE H-PROTEIN, A LIPOAMIDE-CONTAINING PROTEIN OF THE GLYCINE DECARBOXYLASE COMPLEX

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Work: 0.185 
  • R-Value Observed: 0.185 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

The lipoamide arm in the glycine decarboxylase complex is not freely swinging.

Cohen-Addad, C., Pares, S., Sieker, L., Neuburger, M., Douce, R.

(1995) Nat Struct Biol 2: 63-68

  • DOI: 10.1038/nsb0195-63
  • Primary Citation of Related Structures:  
    1HTP

  • PubMed Abstract: 

    • Glycine decarboxylase consists of four protein components. Its structural and mechanistic heart is provided by the lipoic acid-containing H-protein which undergoes a cycle of reductive methylamination, methylamine transfer and electron transfer. Lipo ...

    Glycine decarboxylase consists of four protein components. Its structural and mechanistic heart is provided by the lipoic acid-containing H-protein which undergoes a cycle of reductive methylamination, methylamine transfer and electron transfer. Lipoic acid attached to a specific lysine side chain is assumed to act as a 'swinging arm' conveying the reactive dithiolane ring from one catalytic centre to another. The X-ray crystal structures of two forms of the H-protein have been determined. The lipoate cofactor is located in the loop of a hairpin configuration but following methylamine transfer it is pivoted to bind into a cleft at the surface of the H-protein. The lipoamide-methylamine arm is, therefore, not free to move in aqueous solvent.

    Related Citations: 
    • X-Ray Structure Determination at 2.6 Angstroms Resolution of a Lipoate-Containing Protein: The H-Protein of the Glycine Decarboxylase Complex from Pea Leaves
      Pares, S., Cohen-Addad, C., Sieker, L., Neuburger, M., Douce, R.
      (1994) Proc Natl Acad Sci U S A 91: 4850
    Organizational Affiliation: 

    Institut de Biologie Structurale, Centre National de la Recherche Scientifique et Commisariat à l'Energie Atomique, Grenoble, France.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
H-PROTEINA131Pisum sativumMutation(s): 0 
Gene Names: GDCSH, GCDH
EC: 1.4.4.2
Find proteins for P16048 (Pisum sativum)
Explore P16048 
Go to UniProtKB:  P16048
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OSS
Query on OSS
Download Ideal Coordinates CCD File 
A
6-(HYDROXYETHYLDITHIO)-8-(AMINOMETHYLTHIO)OCTANOIC ACID
C11 H23 N O3 S3
BFRWEULQQALYNZ-JTQLQIEISA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Work: 0.185 
  • R-Value Observed: 0.185 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.34α = 90
b = 55.38β = 90
c = 33.77γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-03-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance