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3k1t

    Table of contents
    1. 1. Protein Summary
    2. 2. Ligand Summary

    Title Crystal structure of Putative gamma-glutamylcysteine synthetase (YP_546622.1) from METHYLOBACILLUS FLAGELLATUS KT at 1.90 A resolution. To be published
    Site JCSG
    PDB Id 3k1t Target Id
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    Molecular Characteristics
    Source
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    Alias Ids
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    TPS27668,YP_546622.1, BIG_70, 382695
    Molecular Weight
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    Da.
    Residues
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    Isoelectric Point
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    Sequence
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      BLAST   FFAS

    Structure Determination
    Method XRAY
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    Chains 1
    Resolution (Å)
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    Rfree
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    Matthews' coefficent 4.62 Rfactor 0.145
    Waters
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    Solvent Content 73.39

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    Ligand Information
    Ligands
    Metals

    Jmol

     
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    Google Scholar output for 3k1t

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    Protein Summary

    This protein is a homolog of a gamma-glutamylcysteine synthetase (ligase) (GshA) from Thiobacillus ferrooxodans PF08886 COG2918 EC 6.3.2.2. The structure of this protein is similar (Dali Z-score 10.9; FATCAT P-val=3.1e-2) to human glutathione synthetase (PDB 2hgs), and very different from gamma-glutamylcysteine synthetase from Escherichia coli (PDBs 1v4g, 1va6). It is expected to bind ATP, Mg, Glu and Cys. It appears that the crystal structure is in a closed conformation, a complex with ligands would be greatly beneficial to the interpretation of the structure and ligand binding site (currently in progress).

     

    Figure 1. Structue of a monomer of YP_546622.1

    pu10421c.png

     

    References:

    The gene for gamma-glutamylcysteine synthetase from Thiobacillus ferrooxidans has low homology to its Escherichia coli equivalent and is linked to the gene for citrate synthase. Powles R, Deane S, Rawlings D.

    Microbiology. 1996 Sep;142 ( Pt 9):2543-8. PMID: 8828222 [PubMed - indexed for MEDLINE]

    http://www.ncbi.nlm.nih.gov/pubmed/8828222

    Ligand Summary

    Reviews

    References

     

    No references found.

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