3fyr: Difference between revisions

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<StructureSection load='3fyr' size='340' side='right'caption='[[3fyr]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
<StructureSection load='3fyr' size='340' side='right'caption='[[3fyr]], [[Resolution|resolution]] 1.97&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3fyr]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacsu Bacsu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FYR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FYR FirstGlance]. <br>
<table><tr><td colspan='2'>[[3fyr]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis_subsp._subtilis_str._168 Bacillus subtilis subsp. subtilis str. 168]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FYR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FYR FirstGlance]. <br>
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.97&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BSU25690, sda ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=224308 BACSU])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3fyr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fyr OCA], [https://pdbe.org/3fyr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fyr RCSB], [https://www.ebi.ac.uk/pdbsum/3fyr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fyr ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3fyr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fyr OCA], [https://pdbe.org/3fyr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fyr RCSB], [https://www.ebi.ac.uk/pdbsum/3fyr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fyr ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[[https://www.uniprot.org/uniprot/SDA_BACSU SDA_BACSU]] Mediates a developmental checkpoint inhibiting initiation of sporulation (by preventing phosphorylation of spo0A) in response to defects in the replication initiation machinery. Inhibits autophosphorylation of the histidine protein kinase KinA, forming a molecular barricade that prevents productive interaction between the ATP-binding site in the catalytic domain and the phosphorylatable His in the phosphotransfer domain of KinA. Probably also inhibits the activity of KinB, but has relatively little effect on KinC. Has at least one target in vivo in addition to KinA as sda does not require KinA to inhibit sporulation.<ref>PMID:11207367</ref> <ref>PMID:15023339</ref> 
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fy/3fyr_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fy/3fyr_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </jmolCheckbox>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacsu]]
[[Category: Bacillus subtilis subsp. subtilis str. 168]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Guss, J M]]
[[Category: Guss JM]]
[[Category: Jacques, D A]]
[[Category: Jacques DA]]
[[Category: King, G F]]
[[Category: King GF]]
[[Category: Langley, D B]]
[[Category: Langley DB]]
[[Category: Streamer, M]]
[[Category: Streamer M]]
[[Category: Trewhella, J]]
[[Category: Trewhella J]]
[[Category: Alternative initiation]]
[[Category: Helical hairpin]]
[[Category: Histidine kinase inhibitor]]
[[Category: Protein kinase inhibitor]]
[[Category: Sporulation]]
[[Category: Sporulation regulation]]
[[Category: Transferase inhibitor]]

Latest revision as of 04:50, 21 November 2024

Crystal structure of the sporulation histidine kinase inhibitor Sda from Bacillus subtilisCrystal structure of the sporulation histidine kinase inhibitor Sda from Bacillus subtilis

Structural highlights

3fyr is a 3 chain structure with sequence from Bacillus subtilis subsp. subtilis str. 168. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.97Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The crystal structure of the DNA-damage checkpoint inhibitor of sporulation, Sda, from Bacillus subtilis, has been solved by the MAD technique using selenomethionine-substituted protein. The structure closely resembles that previously solved by NMR, as well as the structure of a homologue from Geobacillus stearothermophilus solved in complex with the histidine kinase KinB. The structure contains three molecules in the asymmetric unit. The unusual trimeric arrangement, which lacks simple internal symmetry, appears to be preserved in solution based on an essentially ideal fit to previously acquired scattering data for Sda in solution. This interpretation contradicts previous findings that Sda was monomeric or dimeric in solution. This study demonstrates the difficulties that can be associated with the characterization of small proteins and the value of combining multiple biophysical techniques. It also emphasizes the importance of understanding the physical principles behind these techniques and therefore their limitations.

Structure of the sporulation histidine kinase inhibitor Sda from Bacillus subtilis and insights into its solution state.,Jacques DA, Streamer M, Rowland SL, King GF, Guss JM, Trewhella J, Langley DB Acta Crystallogr D Biol Crystallogr. 2009 Jun;65(Pt 6):574-81. Epub 2009, May 15. PMID:19465772[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Jacques DA, Streamer M, Rowland SL, King GF, Guss JM, Trewhella J, Langley DB. Structure of the sporulation histidine kinase inhibitor Sda from Bacillus subtilis and insights into its solution state. Acta Crystallogr D Biol Crystallogr. 2009 Jun;65(Pt 6):574-81. Epub 2009, May 15. PMID:19465772 doi:10.1107/S090744490901169X

3fyr, resolution 1.97Å

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OCA