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2q6f
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==Crystal structure of infectious bronchitis virus (IBV) main protease in complex with a Michael acceptor inhibitor N3== | ==Crystal structure of infectious bronchitis virus (IBV) main protease in complex with a Michael acceptor inhibitor N3== | ||
| - | <StructureSection load='2q6f' size='340' side='right' caption='[[2q6f]], [[Resolution|resolution]] 2.00Å' scene=''> | + | <StructureSection load='2q6f' size='340' side='right'caption='[[2q6f]], [[Resolution|resolution]] 2.00Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2q6f]] is a 4 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2q6f]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Infectious_bronchitis_virus Infectious bronchitis virus] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2Q6F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2Q6F FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</td></tr> |
| - | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=010:PHENYLMETHANOL'>010</scene>, <scene name='pdbligand=02J:5-METHYL-1,2-OXAZOLE-3-CARBOXYLIC+ACID'>02J</scene>, <scene name='pdbligand=PJE:(E,4S)-4-AZANYL-5-[(3S)-2-OXIDANYLIDENEPYRROLIDIN-3-YL]PENT-2-ENOIC+ACID'>PJE</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=2q6f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q6f OCA], [https://pdbe.org/2q6f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2q6f RCSB], [https://www.ebi.ac.uk/pdbsum/2q6f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2q6f ProSAT]</span></td></tr> | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | |
</table> | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/R1A_IBVM R1A_IBVM] The papain-like proteinase (PL-PRO) is responsible for the cleavages located at the N-terminus of replicase polyprotein. Activity of PL-PRO is dependent on zinc (By similarity). The main proteinase 3CL-PRO is responsible for the majority of cleavages as it cleaves the C-terminus of replicase polyprotein at 11 sites. Recognizes substrates containing the core sequence [ILMVF]-Q-|-[SGACN]. Inhibited by the substrate-analog Cbz-Val-Asn-Ser-Thr-Leu-Gln-CMK. Also contains an ADP-ribose-1''-phosphate (ADRP)-binding function (By similarity). The peptide p16 might be involved in the EGF signaling pathway (By similarity). Nsp7-nsp8 hexadecamer may possibly confer processivity to the polymerase, maybe by binding to dsRNA or by producing primers utilized by the latter (By similarity). Nsp9 is a ssRNA-binding protein (By similarity). | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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==See Also== | ==See Also== | ||
| - | *[[Virus protease|Virus protease]] | + | *[[Virus protease 3D structures|Virus protease 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Infectious bronchitis virus]] |
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: | + | [[Category: Synthetic construct]] |
| - | [[Category: | + | [[Category: Bartlam M]] |
| - | [[Category: | + | [[Category: Rao ZH]] |
| - | [[Category: | + | [[Category: Xue F]] |
| - | [[Category: | + | [[Category: Xue XY]] |
| - | [[Category: | + | [[Category: Yang HT]] |
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Current revision
Crystal structure of infectious bronchitis virus (IBV) main protease in complex with a Michael acceptor inhibitor N3
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