View source for 7ti2


==Structure of KPC-2 bound to RPX-7063 at 1.75A==
<StructureSection load='7ti2' size='340' side='right'caption='[[7ti2]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7ti2]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Klebsiella_pneumoniae Klebsiella pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7TI2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7TI2 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]] 1.75&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=ZXQ:2-[(3~{R},7~{S})-2-oxidanyl-3-(2-thiophen-2-ylethanoylamino)-4,7-dihydro-3~{H}-1,2-oxaborepin-7-yl]ethanoic+acid'>ZXQ</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=7ti2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ti2 OCA], [https://pdbe.org/7ti2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ti2 RCSB], [https://www.ebi.ac.uk/pdbsum/7ti2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ti2 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BLKPC_KLEPN BLKPC_KLEPN] Hydrolyzes carbapenems, penicillins, cephalosporins and monobactams with varying efficiency.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Early efforts to broaden the spectrum and potency of cyclic boronic acid beta-lactamase inhibitor vaborbactam included a series of 7-membered ring boronates. Exploration of stereoisomers and incorporation of heteroatoms allowed identification of the all-carbon cyclic boronate with substituents trans as the preferred core structure, showing inhibition of Class A and C enzymes. Crystal structures of one analog bound to important beta-lactamase enzymes were obtained. When isolated under acidic conditions, these compounds spontaneously formed a neutral cyclic anhydride (intramolecular prodrug) which was shown to have much-improved oral bioavailability (52-69%) compared to the ring-opened carboxylate salt (9%).

Broad-spectrum cyclic boronate beta-lactamase inhibitors featuring an intramolecular prodrug for oral bioavailability.,Raja Reddy K, Totrov M, Lomovskaya O, Griffith DC, Tarazi Z, Clifton MC, Hecker SJ Bioorg Med Chem. 2022 May 15;62:116722. doi: 10.1016/j.bmc.2022.116722. Epub 2022, Mar 23. PMID:35358864<ref>PMID:35358864</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7ti2" 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: Clifton MC]]
[[Category: Edwards TE]]
[[Category: Fairman JW]]
[[Category: Hecker SJ]]