View source for 7bh3


==XFEL structure of CTX-M-15 resting state==
<StructureSection load='7bh3' size='340' side='right'caption='[[7bh3]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7bh3]] 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=7BH3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7BH3 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]] 1.6&#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=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=7bh3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7bh3 OCA], [https://pdbe.org/7bh3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7bh3 RCSB], [https://www.ebi.ac.uk/pdbsum/7bh3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7bh3 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/G3G192_KLEPN G3G192_KLEPN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Serial femtosecond crystallography has opened up many new opportunities in structural biology. In recent years, several approaches employing light-inducible systems have emerged to enable time-resolved experiments that reveal protein dynamics at high atomic and temporal resolutions. However, very few enzymes are light-dependent, whereas macromolecules requiring ligand diffusion into an active site are ubiquitous. In this work we present a drop-on-drop sample delivery system that enables the study of enzyme-catalyzed reactions in microcrystal slurries. The system delivers ligand solutions in bursts of multiple picoliter-sized drops on top of a larger crystal-containing drop inducing turbulent mixing and transports the mixture to the X-ray interaction region with temporal resolution. We demonstrate mixing using fluorescent dyes, numerical simulations and time-resolved serial femtosecond crystallography, which show rapid ligand diffusion through microdroplets. The drop-on-drop method has the potential to be widely applicable to serial crystallography studies, particularly of enzyme reactions with small molecule substrates.

An on-demand, drop-on-drop method for studying enzyme catalysis by serial crystallography.,Butryn A, Simon PS, Aller P, Hinchliffe P, Massad RN, Leen G, Tooke CL, Bogacz I, Kim IS, Bhowmick A, Brewster AS, Devenish NE, Brem J, Kamps JJAG, Lang PA, Rabe P, Axford D, Beale JH, Davy B, Ebrahim A, Orlans J, Storm SLS, Zhou T, Owada S, Tanaka R, Tono K, Evans G, Owen RL, Houle FA, Sauter NK, Schofield CJ, Spencer J, Yachandra VK, Yano J, Kern JF, Orville AM Nat Commun. 2021 Jul 22;12(1):4461. doi: 10.1038/s41467-021-24757-7. PMID:34294694<ref>PMID:34294694</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7bh3" 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: Butryn A]]
[[Category: Hinchliffe P]]
[[Category: Spencer J]]
[[Category: Tooke CL]]