3tnt
From Proteopedia
(Difference between revisions)
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3tnt]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Sars_coronavirus Sars coronavirus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TNT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TNT FirstGlance]. <br> | <table><tr><td colspan='2'>[[3tnt]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Sars_coronavirus Sars coronavirus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TNT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TNT FirstGlance]. <br> | ||
| - | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=G85:N-[(BENZYLOXY)CARBONYL]-O-TERT-BUTYL-L-SERYL-N-{(2R)-5-ETHOXY-5-OXO-1-[(3S)-2-OXOPYRROLIDIN-3-YL]PENTAN-2-YL}-L-PHENYLALANINAMIDE'>G85</scene>< | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=G85:N-[(BENZYLOXY)CARBONYL]-O-TERT-BUTYL-L-SERYL-N-{(2R)-5-ETHOXY-5-OXO-1-[(3S)-2-OXOPYRROLIDIN-3-YL]PENTAN-2-YL}-L-PHENYLALANINAMIDE'>G85</scene></td></tr> |
| - | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3tnt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tnt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3tnt RCSB], [http://www.ebi.ac.uk/pdbsum/3tnt PDBsum]</span></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=3tnt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tnt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3tnt RCSB], [http://www.ebi.ac.uk/pdbsum/3tnt PDBsum]</span></td></tr> |
| - | <table> | + | </table> |
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/R1A_CVHSA R1A_CVHSA]] The papain-like proteinase (PL-PRO) is responsible for the cleavages located at the N-terminus of replicase polyprotein. In addition, PL-PRO possesses a deubiquitinating/deISGylating activity and processes both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains from cellular substrates. Antagonizes innate immune induction of type I interferon by blocking the phosphorylation, dimerization and subsequent nuclear translocation of host IRF-3.<ref>PMID:17024178</ref> <ref>PMID:17692280</ref> <ref>PMID:19369340</ref> 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 (By similarity). Also contains an ADP-ribose-1''-phosphate (ADRP)-binding function.<ref>PMID:17024178</ref> <ref>PMID:17692280</ref> <ref>PMID:19369340</ref> Nsp7-nsp8 hexadecamer may possibly confer processivity to the polymerase, maybe by binding to dsRNA or by producing primers utilized by the latter.<ref>PMID:17024178</ref> <ref>PMID:17692280</ref> <ref>PMID:19369340</ref> Nsp9 is a ssRNA-binding protein.<ref>PMID:17024178</ref> <ref>PMID:17692280</ref> <ref>PMID:19369340</ref> | ||
==See Also== | ==See Also== | ||
*[[SARS Coronavirus Main Proteinase|SARS Coronavirus Main Proteinase]] | *[[SARS Coronavirus Main Proteinase|SARS Coronavirus Main Proteinase]] | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Sars coronavirus]] | [[Category: Sars coronavirus]] | ||
| - | [[Category: Hilgenfeld, R | + | [[Category: Hilgenfeld, R]] |
| - | [[Category: Zhu, L | + | [[Category: Zhu, L]] |
[[Category: 3c-like protease]] | [[Category: 3c-like protease]] | ||
[[Category: Hydrolase-hydrolase inhibitor complex]] | [[Category: Hydrolase-hydrolase inhibitor complex]] | ||
[[Category: Protease]] | [[Category: Protease]] | ||
Revision as of 18:55, 25 December 2014
Crystal structure of SARS coronavirus main protease complexed with an alpha, beta-unsaturated ethyl ester inhibitor SG85
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