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| | <StructureSection load='2zah' size='340' side='right'caption='[[2zah]], [[Resolution|resolution]] 2.81Å' scene=''> | | <StructureSection load='2zah' size='340' side='right'caption='[[2zah]], [[Resolution|resolution]] 2.81Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2zah]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Melon_necrotic_spot_virus Melon necrotic spot virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZAH OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2ZAH FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2zah]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Melon_necrotic_spot_virus Melon necrotic spot virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZAH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZAH 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>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene></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]] 2.81Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2tbv|2tbv]], [[1opo|1opo]]</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>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2zah FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zah OCA], [http://pdbe.org/2zah PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zah RCSB], [http://www.ebi.ac.uk/pdbsum/2zah PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zah 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=2zah FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zah OCA], [https://pdbe.org/2zah PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zah RCSB], [https://www.ebi.ac.uk/pdbsum/2zah PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zah ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/CAPSD_MNSV CAPSD_MNSV] Capsid protein self-assembles to form an icosahedral capsid with a T=3 symmetry, about 32-35 nm in diameter, and consisting of 180 capsid proteins. Also acts as a suppressor of RNA-mediated gene silencing, also known as post-transcriptional gene silencing (PTGS), a mechanism of plant viral defense that limits the accumulation of viral RNAs (By similarity). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| | [[Category: Melon necrotic spot virus]] | | [[Category: Melon necrotic spot virus]] |
| - | [[Category: Omura, T]] | + | [[Category: Omura T]] |
| - | [[Category: Tsukihara, T]] | + | [[Category: Tsukihara T]] |
| - | [[Category: Wada, Y]] | + | [[Category: Wada Y]] |
| - | [[Category: B-annulus]]
| + | |
| - | [[Category: Capsid protein]]
| + | |
| - | [[Category: Carmovirus]]
| + | |
| - | [[Category: Coat protein]]
| + | |
| - | [[Category: Fungal vector]]
| + | |
| - | [[Category: Icosahedral virus]]
| + | |
| - | [[Category: Mnsv]]
| + | |
| - | [[Category: Plant virus]]
| + | |
| - | [[Category: Tombusvirus]]
| + | |
| - | [[Category: Virus]]
| + | |
| Structural highlights
Function
CAPSD_MNSV Capsid protein self-assembles to form an icosahedral capsid with a T=3 symmetry, about 32-35 nm in diameter, and consisting of 180 capsid proteins. Also acts as a suppressor of RNA-mediated gene silencing, also known as post-transcriptional gene silencing (PTGS), a mechanism of plant viral defense that limits the accumulation of viral RNAs (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 structure of melon necrotic spot virus (MNSV) was determined at 2.8 A resolution. Although MNSV is classified into the genus Carmovirus of the family Tombusviridae, the three-dimensional structure of MNSV showed a higher degree of similarity to tomato bushy stunt virus (TBSV), which belongs to the genus Tombusvirus, than to carnation mottle virus (CMtV), turnip crinkle virus (TCV) or cowpea mottle virus (CPMtV) from the genus Carmovirus. Thus, the classification of the family Tombusviridae at the genus level conflicts with the patterns of similarity among coat-protein structures. MNSV is one of the viruses belonging to the genera Tombusvirus or Carmovirus that are naturally transmitted in the soil by zoospores of fungal vectors. The X-ray structure of MNSV provides us with a representative structure of viruses transmitted by fungi.
The structure of melon necrotic spot virus determined at 2.8 A resolution.,Wada Y, Tanaka H, Yamashita E, Kubo C, Ichiki-Uehara T, Nakazono-Nagaoka E, Omura T, Tsukihara T Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Jan 1;64(Pt, 1):8-13. Epub 2007 Dec 20. PMID:18097092[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Wada Y, Tanaka H, Yamashita E, Kubo C, Ichiki-Uehara T, Nakazono-Nagaoka E, Omura T, Tsukihara T. The structure of melon necrotic spot virus determined at 2.8 A resolution. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2008 Jan 1;64(Pt, 1):8-13. Epub 2007 Dec 20. PMID:18097092 doi:10.1107/S1744309107066481
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