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The Open Protein Structure Annotation Network
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3mc3

    Title Crystal structure of DsrE/DsrF-like family protein (NP_342589.1) from SULFOLOBUS SOLFATARICUS at 1.49 A resolution. To be published
    Site JCSG
    PDB Id 3mc3 Target Id
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    Molecular Characteristics
    Source
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    Alias Ids
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    TPS7330,NP_342589.1, BIG_508, 87186
    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 2.61 Rfactor 0.122
    Waters
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    Solvent Content 52.80

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    Ligand Information
    Ligands
    Metals

    Jmol

     
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    Google Scholar output for 3mc3
    1. Distributed structure determination at the JCSG
    H van den Bedem, G Wolf, Q Xu - Section D: Biological , 2011 - scripts.iucr.org
     

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    Protein Summary

    The protein NP_342589.1 is annotated as Conserved hypothetical protein. NP_342589.1 belongs to PFAM PF02635 DrsE which contains a small soluble protein involved in intracellular sulfur reduction. This family also includes DsrF.

     The monomer structure is shown below.

    PU12822A.png

    The protein most likely assembles as a trimer, as shown below.

    PU12822A_trimer.png

     

     There are a few structural homologs of this protein, as shown by SSM search below.

    SSM Structural Homologs
    N PDB Q-score RMSD Description (JCSG structures highlighted in red)
    1 1jx7 0.6071 1.855 YCHN PROTEIN FROM E.COLI
    2 2hy5 0.5962 1.692 DSREFH
    3 2hyb 0.591 1.722 HEXAMERIC DSREFH
    4 1l1s 0.584 1.973 STRUCTURE OF PROTEIN OF UNKNOWN FUNCTION MTH1491 FROM METHANOBACTERIUM THERMOAUTOTROPHICUM
    5 2d1p 0.5694 1.855 HETEROHEXAMERIC TUSBCD PROTEINS, WHICH ARE CRUCIAL FOR THE TRNA MODIFICATION
    6 2pd2 0.56 1.948 (ST0148) CONSERVED HYPOTHETICAL FROM SULFOLOBUS TOKODAII STRAIN7
    7 2qs7 0.5408 1.483 PROTEIN OF UNKNOWN FUNCTION (NP_342590.1) FROM SULFOLOBUS SOLFATARICUS AT 2.09 A RESOLUTION

     

     A superposition of these structures is shown below.

    PU12822A_all.png

    The color scheme is NP_342589.1 (green), 1jx7 (cyan), 1l1s (lightmagenta), 2d1p (yellow), 2hy5 (salmon), 2hyb (lightgrey), 2pd2 (slate), 2qs7 (orange).
     

     

    Literature references
    1. Pott AS, Dahl C; , Microbiology 1998;144:1881-1894.: Sirohaem sulfite reductase and other proteins encoded by genes at the dsr locus of Chromatium vinosum are involved in the oxidation of intracellular sulfur. PUBMED:9695921

    Ligand Summary

    Reviews

    References

     

    No references found.

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