View source for 6xbe


==Structure of NDM-1 in complex with macrocycle inhibitor NDM1i-1F==
<StructureSection load='6xbe' size='340' side='right'caption='[[6xbe]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6xbe]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6XBE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6XBE 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]] 1.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DAR:D-ARGININE'>DAR</scene>, <scene name='pdbligand=DCY:D-CYSTEINE'>DCY</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=6xbe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6xbe OCA], [https://pdbe.org/6xbe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6xbe RCSB], [https://www.ebi.ac.uk/pdbsum/6xbe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6xbe ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/E9NWK5_KLEPN E9NWK5_KLEPN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The rise of antibiotic resistance calls for new therapeutics targeting resistance factors such as the New Delhi metallo-beta-lactamase 1 (NDM-1), a bacterial enzyme that degrades beta-lactam antibiotics. We present structure-guided computational methods for designing peptide macrocycles built from mixtures of l- and d-amino acids that are able to bind to and inhibit targets of therapeutic interest. Our methods explicitly consider the propensity of a peptide to favor a binding-competent conformation, which we found to predict rank order of experimentally observed IC(50) values across seven designed NDM-1- inhibiting peptides. We were able to determine X-ray crystal structures of three of the designed inhibitors in complex with NDM-1, and in all three the conformation of the peptide is very close to the computationally designed model. In two of the three structures, the binding mode with NDM-1 is also very similar to the design model, while in the third, we observed an alternative binding mode likely arising from internal symmetry in the shape of the design combined with flexibility of the target. Although challenges remain in robustly predicting target backbone changes, binding mode, and the effects of mutations on binding affinity, our methods for designing ordered, binding-competent macrocycles should have broad applicability to a wide range of therapeutic targets.

Computationally designed peptide macrocycle inhibitors of New Delhi metallo-beta-lactamase 1.,Mulligan VK, Workman S, Sun T, Rettie S, Li X, Worrall LJ, Craven TW, King DT, Hosseinzadeh P, Watkins AM, Renfrew PD, Guffy S, Labonte JW, Moretti R, Bonneau R, Strynadka NCJ, Baker D Proc Natl Acad Sci U S A. 2021 Mar 23;118(12):e2012800118. doi: , 10.1073/pnas.2012800118. PMID:33723038<ref>PMID:33723038</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6xbe" style="background-color:#fffaf0;"></div>

==See Also==
*[[Beta-lactamase 3D structures|Beta-lactamase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Klebsiella pneumoniae]]
[[Category: Large Structures]]
[[Category: Synthetic construct]]
[[Category: Mulligan VK]]
[[Category: Strynadka NCJ]]
[[Category: Sun T]]
[[Category: Worrall LJ]]