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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1css]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CSS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CSS FirstGlance]. <br>
<table><tr><td colspan='2'>[[1css]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CSS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CSS FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FCX:ALPHA-FLUORO-CARBOXYMETHYLDETHIA+COENZYME+A+COMPLEX'>FCX</scene>, <scene name='pdbligand=OAA:OXALOACETATE+ION'>OAA</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]] 1.7&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Citrate_(Si)-synthase Citrate (Si)-synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.3.1 2.3.3.1] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FCX:ALPHA-FLUORO-CARBOXYMETHYLDETHIA+COENZYME+A+COMPLEX'>FCX</scene>, <scene name='pdbligand=OAA:OXALOACETATE+ION'>OAA</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=1css FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1css OCA], [https://pdbe.org/1css PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1css RCSB], [https://www.ebi.ac.uk/pdbsum/1css PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1css 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=1css FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1css OCA], [https://pdbe.org/1css PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1css RCSB], [https://www.ebi.ac.uk/pdbsum/1css PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1css ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CISY_CHICK CISY_CHICK]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1css ConSurf].
</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=1css ConSurf].
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== Publication Abstract from PubMed ==
An alpha-fluoro acid analog and an alpha-fluoro amide analog of acetyl-CoA have been synthesized. The ternary complexes of these inhibitors with oxaloacetate and citrate synthase have been crystallized and their structures analyzed at 1.7 A resolution. The structures are similar to those reported for the corresponding non-fluorinated analogs (Usher et al., 1994), with all forming unusually short hydrogen bonds to Asp 375. The alpha-fluoro amide analog binds with an affinity 1.5-fold lower than that of a previously described amide analog lacking the alpha-fluoro group. The alpha-fluoro acid analog binds with a 50-fold decreased affinity relative to the corresponding unfluorinated analog. The binding affinities are consistent with increased strengths of hydrogen bonds to Asp 375 with closer matching of pKa values between hydrogen bond donors and acceptors. The results do not support any direct correlation between hydrogen bond strength and hydrogen bond length in enzyme-inhibitor complexes.
alpha-Fluoro acid and alpha-fluoro amide analogs of acetyl-CoA as inhibitors of citrate synthase: effect of pKa matching on binding affinity and hydrogen bond length.,Schwartz B, Drueckhammer DG, Usher KC, Remington SJ Biochemistry. 1995 Nov 28;34(47):15459-66. PMID:7492547<ref>PMID:7492547</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1css" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Citrate Synthase 3D structures|Citrate Synthase 3D structures]]
*[[Citrate Synthase 3D structures|Citrate Synthase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Remington, S J]]
[[Category: Remington SJ]]
[[Category: Usher, K C]]
[[Category: Usher KC]]
[[Category: Oxo-acid-lyase]]

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