3mj5: Difference between revisions
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{{STRUCTURE_3mj5| PDB=3mj5 | SCENE= }} | {{STRUCTURE_3mj5| PDB=3mj5 | SCENE= }} | ||
===Severe Acute Respiratory Syndrome-Coronavirus Papain-Like Protease Inhibitors: Design, Synthesis, Protein-Ligand X-ray Structure and Biological Evaluation=== | ===Severe Acute Respiratory Syndrome-Coronavirus Papain-Like Protease Inhibitors: Design, Synthesis, Protein-Ligand X-ray Structure and Biological Evaluation=== | ||
{{ABSTRACT_PUBMED_20527968}} | |||
==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> | |||
==About this Structure== | ==About this Structure== | ||
[[3mj5]] is a 2 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=3MJ5 OCA]. | |||
==Reference== | ==Reference== | ||
<ref group="xtra">PMID: | <ref group="xtra">PMID:020527968</ref><references group="xtra"/><references/> | ||
[[Category: Sars coronavirus]] | [[Category: Sars coronavirus]] | ||
[[Category: Mesecar, A D.]] | [[Category: Mesecar, A D.]] | ||
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[[Category: Viral protein]] | [[Category: Viral protein]] | ||
[[Category: Zinc-finger]] | [[Category: Zinc-finger]] | ||