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2hdu

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[[Image:2hdu.gif|left|200px]]
 
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{{Structure
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==AmpC beta-lactamase in complex with 2-acetamidothiophene-3-carboxylic acid==
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|PDB= 2hdu |SIZE=350|CAPTION= <scene name='initialview01'>2hdu</scene>, resolution 1.490&Aring;
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<StructureSection load='2hdu' size='340' side='right'caption='[[2hdu]], [[Resolution|resolution]] 1.49&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene> and <scene name='pdbligand=F12:2-(ACETYLAMINO)THIOPHENE-3-CARBOXYLIC ACID'>F12</scene>
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<table><tr><td colspan='2'>[[2hdu]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HDU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HDU FirstGlance]. <br>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Beta-lactamase Beta-lactamase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.2.6 3.5.2.6]
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=F12:2-(ACETYLAMINO)THIOPHENE-3-CARBOXYLIC+ACID'>F12</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
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|GENE= ampC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2hdq|2hdq]], [[2hdr|2hdr]], [[2hds|2hds]]</div></td></tr>
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}}
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ampC ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Beta-lactamase Beta-lactamase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.2.6 3.5.2.6] </span></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=2hdu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hdu OCA], [https://pdbe.org/2hdu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hdu RCSB], [https://www.ebi.ac.uk/pdbsum/2hdu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hdu ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[https://www.uniprot.org/uniprot/AMPC_ECOLI AMPC_ECOLI]] This protein is a serine beta-lactamase with a substrate specificity for cephalosporins.
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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/hd/2hdu_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=2hdu 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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Fragment-based screens test multiple low-molecular weight molecules for binding to a target. Fragments often bind with low affinities but typically have better ligand efficiencies (DeltaG(bind)/heavy atom count) than traditional screening hits. This efficiency, combined with accompanying atomic-resolution structures, has made fragments popular starting points for drug discovery programs. Fragment-based design adopts a constructive strategy: affinity is enhanced either by cycles of functional-group addition or by joining two independent fragments together. The final inhibitor is expected to adopt the same geometry as the original fragment hit. Here we consider whether the inverse, deconstructive logic also applies--can one always parse a higher-affinity inhibitor into fragments that recapitulate the binding geometry of the larger molecule? Cocrystal structures of fragments deconstructed from a known beta-lactamase inhibitor suggest that this is not always the case.
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'''AmpC beta-lactamase in complex with 2-acetamidothiophene-3-carboxylic acid'''
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Deconstructing fragment-based inhibitor discovery.,Babaoglu K, Shoichet BK Nat Chem Biol. 2006 Dec;2(12):720-3. Epub 2006 Oct 29. PMID:17072304<ref>PMID:17072304</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 2hdu" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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Fragment-based screens test multiple low-molecular weight molecules for binding to a target. Fragments often bind with low affinities but typically have better ligand efficiencies (DeltaG(bind)/heavy atom count) than traditional screening hits. This efficiency, combined with accompanying atomic-resolution structures, has made fragments popular starting points for drug discovery programs. Fragment-based design adopts a constructive strategy: affinity is enhanced either by cycles of functional-group addition or by joining two independent fragments together. The final inhibitor is expected to adopt the same geometry as the original fragment hit. Here we consider whether the inverse, deconstructive logic also applies--can one always parse a higher-affinity inhibitor into fragments that recapitulate the binding geometry of the larger molecule? Cocrystal structures of fragments deconstructed from a known beta-lactamase inhibitor suggest that this is not always the case.
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*[[Beta-lactamase 3D structures|Beta-lactamase 3D structures]]
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== References ==
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==About this Structure==
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<references/>
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2HDU is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HDU OCA].
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__TOC__
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</StructureSection>
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==Reference==
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Deconstructing fragment-based inhibitor discovery., Babaoglu K, Shoichet BK, Nat Chem Biol. 2006 Dec;2(12):720-3. Epub 2006 Oct 29. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17072304 17072304]
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[[Category: Beta-lactamase]]
[[Category: Beta-lactamase]]
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[[Category: Escherichia coli]]
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[[Category: Ecoli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Babaoglu, K.]]
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[[Category: Babaoglu, K]]
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[[Category: Shoichet, B K.]]
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[[Category: Shoichet, B K]]
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[[Category: F12]]
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[[Category: Ampc beta-lactamase fragment-based drug design]]
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[[Category: K]]
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[[Category: Hydrolase]]
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[[Category: PO4]]
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[[Category: ampc beta-lactamase fragment-based drug design]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 17:15:47 2008''
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Current revision

AmpC beta-lactamase in complex with 2-acetamidothiophene-3-carboxylic acid

PDB ID 2hdu

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