9jl2

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Current revision (05:40, 24 September 2025) (edit) (undo)
 
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'''Unreleased structure'''
 
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The entry 9jl2 is ON HOLD until Paper Publication
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==Classical conformation for the spCas9 with gRNA and target DNA complex==
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<StructureSection load='9jl2' size='340' side='right'caption='[[9jl2]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
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Authors: Xi, Z.
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== Structural highlights ==
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<table><tr><td colspan='2'>[[9jl2]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_pyogenes_serotype_M1 Streptococcus pyogenes serotype M1] and [https://en.wikipedia.org/wiki/Unclassified_sequences Unclassified sequences]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9JL2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9JL2 FirstGlance]. <br>
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Description: Classical conformation for the spCas9 with gRNA and target DNA complex
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3&#8491;</td></tr>
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[[Category: Unreleased Structures]]
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9jl2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9jl2 OCA], [https://pdbe.org/9jl2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9jl2 RCSB], [https://www.ebi.ac.uk/pdbsum/9jl2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9jl2 ProSAT]</span></td></tr>
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[[Category: Xi, Z]]
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CAS9_STRP1 CAS9_STRP1] CRISPR (clustered regularly interspaced short palindromic repeat) is an adaptive immune system that provides protection against mobile genetic elements (viruses, transposable elements and conjugative plasmids). CRISPR clusters contain spacers, sequences complementary to antecedent mobile elements, and target invading nucleic acids. CRISPR clusters are transcribed and processed into CRISPR RNA (crRNA) (Probable). In type II CRISPR systems correct processing of pre-crRNA requires a trans-encoded small RNA (tracrRNA), endogenous ribonuclease 3 (rnc) and this protein. The tracrRNA serves as a guide for ribonuclease 3-aided processing of pre-crRNA. Subsequently Cas9/crRNA/tracrRNA endonucleolytically cleaves linear or circular dsDNA target complementary to the spacer. The target strand not complementary to crRNA is first cut endonucleolytically, then trimmed by 3'-5' exonucleolytically. DNA-binding requires protein and both RNA species. Cas9 probably recognizes a short motif in the CRISPR repeat sequences (the PAM or protospacer adjacent motif) to help distinguish self versus nonself.<ref>PMID:21455174</ref> <ref>PMID:22745249</ref>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Streptococcus pyogenes serotype M1]]
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[[Category: Unclassified sequences]]
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[[Category: Xi Z]]

Current revision

Classical conformation for the spCas9 with gRNA and target DNA complex

PDB ID 9jl2

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