View source for 4qy5


==Crystal structures of chimeric beta-lactamase cTEM-19m showing different conformations==
<StructureSection load='4qy5' size='340' side='right'caption='[[4qy5]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4qy5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4QY5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4QY5 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]] 1.501&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=4qy5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4qy5 OCA], [https://pdbe.org/4qy5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4qy5 RCSB], [https://www.ebi.ac.uk/pdbsum/4qy5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4qy5 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/BLAT_ECOLX BLAT_ECOLX] TEM-type are the most prevalent beta-lactamases in enterobacteria; they hydrolyze the beta-lactam bond in susceptible beta-lactam antibiotics, thus conferring resistance to penicillins and cephalosporins. TEM-3 and TEM-4 are capable of hydrolyzing cefotaxime and ceftazidime. TEM-5 is capable of hydrolyzing ceftazidime. TEM-6 is capable of hydrolyzing ceftazidime and aztreonam. TEM-8/CAZ-2, TEM-16/CAZ-7 and TEM-24/CAZ-6 are markedly active against ceftazidime. IRT-4 shows resistance to beta-lactamase inhibitors.[https://www.uniprot.org/uniprot/BLP4_PSEAI BLP4_PSEAI] Hydrolyzes both carbenicillin and oxacillin.

==See Also==
*[[Beta-lactamase 3D structures|Beta-lactamase 3D structures]]
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Berghuis AM]]
[[Category: Gobeil S]]
[[Category: Park J]]
[[Category: Pelletier JN]]