View source for 6b7b


==Crystal structure of E.coli Phosphopantetheine Adenylyltransferase (PPAT/CoaD) in complex with 5-methoxy-2-methyl-1H-indole==
<StructureSection load='6b7b' size='340' side='right'caption='[[6b7b]], [[Resolution|resolution]] 1.98&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6b7b]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6B7B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6B7B FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.981&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CWJ:5-methoxy-2-methyl-1H-indole'>CWJ</scene>, <scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=POP:PYROPHOSPHATE+2-'>POP</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=6b7b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6b7b OCA], [https://pdbe.org/6b7b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6b7b RCSB], [https://www.ebi.ac.uk/pdbsum/6b7b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6b7b ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/COAD_ECOLI COAD_ECOLI] Reversibly transfers an adenylyl group from ATP to 4'-phosphopantetheine, yielding dephospho-CoA (dPCoA) and pyrophosphate.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Structure-based drug design is an integral part of modern day drug discovery and requires detailed structural characterization of protein-ligand interactions, which is most commonly performed by X-ray crystallography. However, the success rate of generating these costructures is often variable, in particular when working with dynamic proteins or weakly binding ligands. As a result, structural information is not routinely obtained in these scenarios, and ligand optimization is challenging or not pursued at all, representing a substantial limitation in chemical scaffolds and diversity. To overcome this impediment, we have developed a robust NMR restraint guided docking protocol to generate high-quality models of protein-ligand complexes. By combining the use of highly methyl-labeled protein with experimentally determined intermolecular distances, a comprehensive set of protein-ligand distances is generated which then drives the docking process and enables the determination of the correct ligand conformation in the bound state. For the first time, the utility and performance of such a method is fully demonstrated by employing the generated models for the successful, prospective optimization of crystallographically intractable fragment hits into more potent binders.

High-Confidence Protein-Ligand Complex Modeling by NMR-Guided Docking Enables Early Hit Optimization.,Proudfoot A, Bussiere DE, Lingel A J Am Chem Soc. 2017 Dec 13;139(49):17824-17833. doi: 10.1021/jacs.7b07171. Epub, 2017 Nov 30. PMID:29190085<ref>PMID:29190085</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6b7b" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Bussiere D]]
[[Category: Lingel A]]
[[Category: Proudfoot AW]]