8dzj: Difference between revisions

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'''Unreleased structure'''


The entry 8dzj is ON HOLD  until Paper Publication
==Cryo-EM structure of Acidibacillus sulfuroxidans Cas12f in complex with sgRNA and target DNA==
<StructureSection load='8dzj' size='340' side='right'caption='[[8dzj]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8dzj]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Acidibacillus_sulfuroxidans Acidibacillus sulfuroxidans] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8DZJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8DZJ FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.9&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=8dzj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8dzj OCA], [https://pdbe.org/8dzj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8dzj RCSB], [https://www.ebi.ac.uk/pdbsum/8dzj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8dzj ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A2U3D0N8_9BACL A0A2U3D0N8_9BACL]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Compact CRISPR-Cas systems offer versatile treatment options for genetic disorders, but their application is often limited by modest gene-editing activity. Here we present enAsCas12f, an engineered RNA-guided DNA endonuclease up to 11.3-fold more potent than its parent protein, AsCas12f, and one-third of the size of SpCas9. enAsCas12f shows higher DNA cleavage activity than wild-type AsCas12f in vitro and functions broadly in human cells, delivering up to 69.8% insertions and deletions at user-specified genomic loci. Minimal off-target editing is observed with enAsCas12f, suggesting that boosted on-target activity does not impair genome-wide specificity. We determine the cryo-electron microscopy (cryo-EM) structure of the AsCas12f-sgRNA-DNA complex at a resolution of 2.9 A, which reveals dimerization-mediated substrate recognition and cleavage. Structure-guided single guide RNA (sgRNA) engineering leads to sgRNA-v2, which is 33% shorter than the full-length sgRNA, but with on par activity. Together, the engineered hypercompact AsCas12f system enables robust and faithful gene editing in mammalian cells.


Authors: Liu, C., Zhao, M.
An engineered hypercompact CRISPR-Cas12f system with boosted gene-editing activity.,Wu T, Liu C, Zou S, Lyu R, Yang B, Yan H, Zhao M, Tang W Nat Chem Biol. 2023 Jul 3. doi: 10.1038/s41589-023-01380-9. PMID:37400536<ref>PMID:37400536</ref>


Description: Cryo-EM structure of Acidibacillus sulfuroxidans Cas12f in complex with sgRNA and target DNA
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Liu, C]]
<div class="pdbe-citations 8dzj" style="background-color:#fffaf0;"></div>
[[Category: Zhao, M]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Acidibacillus sulfuroxidans]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Liu C]]
[[Category: Zhao M]]
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