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The Open Protein Structure Annotation Network
PDB Keyword
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1t6r

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

    Title Solution structures of the putative anti-sigma-factor antagonist TM1442 from Thermotoga maritima in the free and phosphorylated states. Magn.Reson.Chem. 44 Spec No S61-S70 2006
    Site JCSG
    PDB Id 1t6r Target Id
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    Related PDB Ids 1sbo 
    Molecular Characteristics
    Source
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    Alias Ids
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    TPS1913,TM1442
    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 NMR
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    Chains 1

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    Ligand Information
    Ligands
    Metals

    Jmol

     
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    Google Scholar output for 1t6r
    1. Microbial biochemistry, physiology, and biotechnology of hyperthermophilic Thermotoga species
    SB Conners, EF Mongodin, MR Johnson - FEMS microbiology , 2006 - Wiley Online Library
     
    2. Solution structures of the putative anti___factor antagonist TM1442 from Thermotoga maritima in the free and phosphorylated states
    T Etezady_Esfarjani, WJ Placzek - Magnetic , 2006 - Wiley Online Library
     
    3. Carbohydrate utilization pathway analysis in the hyperthermophile Thermotoga maritima
    SB Conners - 2006 - repository.lib.ncsu.edu
     
    4. On the contribution of linear correlations to quasi-harmonic conformational entropy in proteins
    AA Polyansky, A Kuzmanic, M Hlevnjak - Journal of Chemical , 2012 - ACS Publications
     
    5. Protein structure prediction and conformational transitions
    H Cheng - 2009 - lib.dr.iastate.edu
     

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    Protein Summary

    The gene TM1442 from Thermotoga maritima encodes the NP_229241 protein, an anti-sigma factor antagonist domain of anti-anti-sigma factors (the STAS domain) PF01740 COG1366.  

    SCOP classifies 1t6r in the alpha/beta class, SpoIIAA-like superfamily, anti-sigma factor antagonist family. 1t6r entry corresponds to the solution structure of TM1441 in the phosphorylated state [Ref]. Its crystal structure is available as

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    . Significant DALI hits are found with anti-sigma F factor proteins
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    ,
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    ,
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    (Z=16), and the TM1081 proteins
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    and
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    (Z=15).

    Anti-anti-sigma factors play an important role in the regulation of several sigma factors and their corresponding anti-sigma factors. Upon dephosphorylation they bind the anti-sigma factor and induce the release of the sigma factor from the anti-sigma factor. In a feedback mechanism the anti-anti-sigma factor can be inactivated via phosphorylation by the anti-sigma factor. Well studied examples from Bacillus subtilis are SpoIIAA (regulating sigmaF and sigmaC which play an important role in sporulation) and RsbV (regulating sigmaB involved in the general stress response) [Ref]. The STAS domain is also found in the C-terminal region of sulphate transporters and stressosomes.

    Ligand Summary



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