8b11

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Current revision (05:52, 23 August 2023) (edit) (undo)
 
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'''Unreleased structure'''
 
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The entry 8b11 is ON HOLD
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==cryo-EM structure of carboxysomal mini-shell: icosahedral assembly from CsoS4A/1A and CsoS2 co-expression (T = 4)==
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<StructureSection load='8b11' size='340' side='right'caption='[[8b11]], [[Resolution|resolution]] 2.52&Aring;' scene=''>
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Authors: Ni, T., Jiang, Q., Liu, L.N., Zhang, P.
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== Structural highlights ==
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<table><tr><td colspan='2'>[[8b11]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Halothiobacillus_neapolitanus Halothiobacillus neapolitanus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8B11 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8B11 FirstGlance]. <br>
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Description: cryo-EM structure of carboxysomal mini-shell: icosahedral assembly from CsoS4A/1A and CsoS2 co-expression (T = 4)
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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]] 2.52&#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=8b11 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8b11 OCA], [https://pdbe.org/8b11 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8b11 RCSB], [https://www.ebi.ac.uk/pdbsum/8b11 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8b11 ProSAT]</span></td></tr>
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[[Category: Jiang, Q]]
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</table>
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[[Category: Liu, L.N]]
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== Function ==
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[[Category: Ni, T]]
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[https://www.uniprot.org/uniprot/CSS4A_HALNC CSS4A_HALNC] Probably forms vertices in the carboxysome, a polyhedral inclusion where RuBisCO (ribulose bisphosphate carboxylase, cbbL-cbbS) is sequestered. Has been modeled to induce curvature upon insertion into an otherwise flat hexagonal layer of major carboxysome subunits (Probable). A minor shell protein, only 12 pentamers of CsoS4A/CsoS4B are calculated to be present in each carboxysome. The 2 CsoS4 proteins contribute to the impermeability of the carboxysome to CO(2) (PubMed:19844578).<ref>PMID:19844578</ref> <ref>PMID:18292340</ref> Unlike beta-carboxysomes, alpha-carboxysomes (Cb) can form without cargo protein. CsoS2 is essential for Cb formation and is also capable of targeting foreign proteins to the Cb. The Cb shell assembles with the aid of CsoS2; CsoS1A, CsoS1B and CsoS1C form the majority of the shell while CsoS4A and CsoS4B form vertices. CsoS1D forms pseudohexamers that probably control metabolite flux into and out of the shell.<ref>PMID:33116131</ref>
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[[Category: Zhang, P]]
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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: Halothiobacillus neapolitanus]]
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[[Category: Large Structures]]
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[[Category: Jiang Q]]
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[[Category: Liu LN]]
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[[Category: Ni T]]
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[[Category: Zhang P]]

Current revision

cryo-EM structure of carboxysomal mini-shell: icosahedral assembly from CsoS4A/1A and CsoS2 co-expression (T = 4)

PDB ID 8b11

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