1gpf

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[[Image:1gpf.gif|left|200px]]<br /><applet load="1gpf" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1gpf, resolution 1.85&Aring;" />
 
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'''CHITINASE B FROM SERRATIA MARCESCENS IN COMPLEX WITH INHIBITOR PSAMMAPLIN'''<br />
 
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==Overview==
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==CHITINASE B FROM SERRATIA MARCESCENS IN COMPLEX WITH INHIBITOR PSAMMAPLIN==
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Several brominated tyrosine derived compounds, psammaplins A (1), K (2), and L (3) as well as bisaprasin (4) were isolated from the Fijian marine, sponge Aplysinella rhax during a bioassay guided isolation protocol. Their, structures were determined using NMR and MS techniques. Psammaplin A was, found to moderately inhibit chitinase B from Serratia marcescens, the mode, of inhibition being non-competitive. Crystallographic studies suggest that, a disordered psammaplin A molecule is bound near the active site., Interestingly, psammaplin A was found to be a potent antifungal agent.
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<StructureSection load='1gpf' size='340' side='right'caption='[[1gpf]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1gpf]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Serratia_marcescens Serratia marcescens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GPF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GPF FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.85&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1gpf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gpf OCA], [https://pdbe.org/1gpf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gpf RCSB], [https://www.ebi.ac.uk/pdbsum/1gpf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gpf ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q54276_SERMA Q54276_SERMA]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gp/1gpf_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1gpf ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Several brominated tyrosine derived compounds, psammaplins A (1), K (2) and L (3) as well as bisaprasin (4) were isolated from the Fijian marine sponge Aplysinella rhax during a bioassay guided isolation protocol. Their structures were determined using NMR and MS techniques. Psammaplin A was found to moderately inhibit chitinase B from Serratia marcescens, the mode of inhibition being non-competitive. Crystallographic studies suggest that a disordered psammaplin A molecule is bound near the active site. Interestingly, psammaplin A was found to be a potent antifungal agent.
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==About this Structure==
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Psammaplin A, a chitinase inhibitor isolated from the Fijian marine sponge Aplysinella rhax.,Tabudravu JN, Eijsink VG, Gooday GW, Jaspars M, Komander D, Legg M, Synstad B, van Aalten DM Bioorg Med Chem. 2002 Apr;10(4):1123-8. PMID:11836123<ref>PMID:11836123</ref>
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1GPF is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Serratia_marcescens Serratia marcescens] with SO4 as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Chitinase Chitinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.14 3.2.1.14] Known structural/functional Site: <scene name='pdbsite=AC1:So4 Binding Site For Chain B'>AC1</scene>. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1GPF OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Psammaplin A, a chitinase inhibitor isolated from the Fijian marine sponge Aplysinella rhax., Tabudravu JN, Eijsink VG, Gooday GW, Jaspars M, Komander D, Legg M, Synstad B, van Aalten DM, Bioorg Med Chem. 2002 Apr;10(4):1123-8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11836123 11836123]
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</div>
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[[Category: Chitinase]]
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<div class="pdbe-citations 1gpf" style="background-color:#fffaf0;"></div>
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[[Category: Serratia marcescens]]
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[[Category: Single protein]]
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[[Category: Aalten, D.M.Van.]]
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[[Category: Komander, D.]]
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[[Category: SO4]]
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[[Category: chitin degradation]]
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[[Category: hydrolase]]
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[[Category: inhibitor psammaplin]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Dec 18 15:29:06 2007''
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==See Also==
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*[[Chitinase 3D structures|Chitinase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Serratia marcescens]]
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[[Category: Komander D]]
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[[Category: Van Aalten DM]]

Current revision

CHITINASE B FROM SERRATIA MARCESCENS IN COMPLEX WITH INHIBITOR PSAMMAPLIN

PDB ID 1gpf

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