8e53: Difference between revisions

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'''Unreleased structure'''


The entry 8e53 is ON HOLD
==MicroED structure of proteinase K recorded on K3==
<StructureSection load='8e53' size='340' side='right'caption='[[8e53]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8e53]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Parengyodontium_album Parengyodontium album]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8E53 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8E53 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</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=8e53 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8e53 OCA], [https://pdbe.org/8e53 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8e53 RCSB], [https://www.ebi.ac.uk/pdbsum/8e53 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8e53 ProSAT]</span></td></tr>
</table>
== Function ==
[[https://www.uniprot.org/uniprot/PRTK_PARAQ PRTK_PARAQ]] Hydrolyzes keratin at aromatic and hydrophobic residues.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Microcrystal electron diffraction (MicroED) uses electron cryo-microscopy (cryo-EM) to collect diffraction data from small crystals during continuous rotation of the sample. As a result of advances in hardware as well as methods development, the data quality has continuously improved over the past decade, to the point where even macromolecular structures can be determined ab initio. Detectors suitable for electron diffraction should ideally have fast readout to record data in movie mode, and high sensitivity at low exposure rates to accurately report the intensities. Direct electron detectors are commonly used in cryo-EM imaging for their sensitivity and speed, but despite their availability are generally not used in diffraction. Primary concerns with diffraction experiments are the dynamic range and coincidence loss, which will corrupt the measurement if the flux exceeds the count rate of the detector. Here, we describe instrument setup and low-exposure MicroED data collection in electron-counting mode using K2 and K3 direct electron detectors and show that the integrated intensities can be effectively used to solve structures of two macromolecules between 1.2 A and 2.8 A. Even though a beam stop was not used in these studies we did not observe damage to the camera. As these cameras are already available in many cryo-EM facilities, this provides opportunities for users who do not have access to dedicated facilities for MicroED.


Authors:  
Electron-counting MicroED data with the K2 and K3 direct electron detectors.,Clabbers MTB, Martynowycz MW, Hattne J, Nannenga BL, Gonen T J Struct Biol. 2022 Aug 28:107886. doi: 10.1016/j.jsb.2022.107886. PMID:36044956<ref>PMID:36044956</ref>


Description:  
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
<div class="pdbe-citations 8e53" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Parengyodontium album]]
[[Category: Clabbers MTB]]
[[Category: Gonen T]]
[[Category: Hattne J]]
[[Category: Martynowycz MW]]
[[Category: Nannenga BL]]

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