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| | ==High-resolution crystal structure of activated Cyt2Ba monomer from Bacillus thuringiensis subsp. israelensis== | | ==High-resolution crystal structure of activated Cyt2Ba monomer from Bacillus thuringiensis subsp. israelensis== |
| - | <StructureSection load='2rci' size='340' side='right' caption='[[2rci]], [[Resolution|resolution]] 1.80Å' scene=''> | + | <StructureSection load='2rci' size='340' side='right'caption='[[2rci]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2rci]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_thuringiensis_serovar_israelensis Bacillus thuringiensis serovar israelensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RCI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2RCI FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2rci]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_thuringiensis_serovar_israelensis Bacillus thuringiensis serovar israelensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2RCI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2RCI FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cyt2Ba1, cyt2Ba7, cytB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1430 Bacillus thuringiensis serovar israelensis])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2rci FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rci OCA], [http://pdbe.org/2rci PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2rci RCSB], [http://www.ebi.ac.uk/pdbsum/2rci PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2rci ProSAT]</span></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=2rci FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rci OCA], [https://pdbe.org/2rci PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2rci RCSB], [https://www.ebi.ac.uk/pdbsum/2rci PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2rci ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/CT2BA_BACTI CT2BA_BACTI]] Kills the larvae of dipteran insects by making pores in the epithelial cell membrane of the insect midgut (By similarity). | + | [https://www.uniprot.org/uniprot/CT2BA_BACTI CT2BA_BACTI] Kills the larvae of dipteran insects by making pores in the epithelial cell membrane of the insect midgut (By similarity). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Bacillus thuringiensis serovar israelensis]] | | [[Category: Bacillus thuringiensis serovar israelensis]] |
| - | [[Category: Dym, O]] | + | [[Category: Large Structures]] |
| - | [[Category: ISPC, Israel Structural Proteomics Center]] | + | [[Category: Dym O]] |
| - | [[Category: Alpha/beta architecture with beta-sheet surrounded by two alpha-helix layer]]
| + | |
| - | [[Category: Plasmid]]
| + | |
| - | [[Category: Sporulation]]
| + | |
| - | [[Category: Structural genomic]]
| + | |
| - | [[Category: Toxin]]
| + | |
| Structural highlights
Function
CT2BA_BACTI Kills the larvae of dipteran insects by making pores in the epithelial cell membrane of the insect midgut (By similarity).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The Cyt family of proteins consists of delta-endotoxins expressed during sporulation of several subspecies of Bacillus thuringiensis. Its members possess insecticidal, hemolytic, and cytolytic activities through pore formation and attract attention due to their potential use as vehicles for targeted membrane destruction. The delta-endotoxins of subsp. israelensis include three Cyt species: a major Cyt1Aa and two minor proteins, Cyt2Ba and Cyt1Ca. A cleaved Cyt protein that lacks the N- and C-terminal segments forms a toxic monomer. Here, we describe the crystal structure of Cyt2Ba, cleaved at its amino and carboxy termini by bacterial endogenous protease(s). Overall, its fold resembles that of the previously described volvatoxin A2 and the nontoxic form of Cyt2Aa. The structural similarity between these three proteins may provide information regarding the mechanism(s) of membrane-perforating toxins.
High-resolution crystal structure of activated Cyt2Ba monomer from Bacillus thuringiensis subsp. israelensis.,Cohen S, Dym O, Albeck S, Ben-Dov E, Cahan R, Firer M, Zaritsky A J Mol Biol. 2008 Jul 25;380(5):820-7. Epub 2008 May 11. PMID:18571667[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Cohen S, Dym O, Albeck S, Ben-Dov E, Cahan R, Firer M, Zaritsky A. High-resolution crystal structure of activated Cyt2Ba monomer from Bacillus thuringiensis subsp. israelensis. J Mol Biol. 2008 Jul 25;380(5):820-7. Epub 2008 May 11. PMID:18571667 doi:10.1016/j.jmb.2008.05.010
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