Abstract:
:The severe acute respiratory syndrome coronavirus papain-like protease (SARS-CoV PLpro) carries out N-terminal processing of the viral replicase polyprotein, and also exhibits Lys48-linked polyubiquitin chain debranching and ISG15 precursor processing activities in vitro. Here, we used SDS-PAGE and fluorescence-based assays to demonstrate that ISG15 derivatives are the preferred substrates for the deubiquitinating activity of the PLpro. With k(cat)/K(M) of 602,000 M(-1)s(-1), PLpro hydrolyzes ISG15-AMC 30- and 60-fold more efficiently than Ub-AMC and Nedd8-AMC, respectively. Data obtained with truncated ISG15 and hybrid Ub/ISG15 substrates indicate that both the N- and C-terminal Ub-like domains of ISG15 contribute to this preference. The enzyme also displays a preference for debranching Lys48- over Lys63-linked polyubiquitin chains. Our results demonstrate that SARS-CoV PLpro can differentiate between ubiquitin-like modifiers sharing a common C-terminal sequence, and that the debranching activity of the PLpro is linkage type selective. The potential structural basis for the demonstrated specificity of SARS-CoV PLpro is discussed.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Lindner HA,Lytvyn V,Qi H,Lachance P,Ziomek E,Ménard Rdoi
10.1016/j.abb.2007.07.006subject
Has Abstractpub_date
2007-10-01 00:00:00pages
8-14issue
1eissn
0003-9861issn
1096-0384pii
S0003-9861(07)00346-3journal_volume
466pub_type
杂志文章abstract::1-O-Alkyl-2-acetyl-sn-glycero-3-phosphocholine (AGEPC) induced phosphorylation of two proteins having molecular masses of approximately 20- and 40-kDa in washed rabbit platelets in a concentration- and time-dependent manner. Sequential stimulation with AGEPC did not induce additional protein phosphorylation, supportin...
journal_title:Archives of biochemistry and biophysics
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doi:10.1016/0003-9861(86)90342-5
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更新日期:1995-02-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:1993-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:2004-07-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1016/0003-9861(90)90569-k
更新日期:1990-02-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
doi:10.1016/j.abb.2018.04.005
更新日期:2018-06-15 00:00:00
abstract::Uridine kinase is the rate-limiting enzyme in the pyrimidine salvage pathway of all mammalian cells. A cDNA for uridine kinase from mouse brain has been isolated, sequenced, and characterized. This is the first report of a complete nucleotide sequence for mammalian uridine kinase. The isolated cDNA is only 95% complet...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1996.0537
更新日期:1996-12-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2004.01.001
更新日期:2004-03-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(85)90015-3
更新日期:1985-07-01 00:00:00
abstract:AIMS:to investigate α2-AR subtype distribution and the relationship between receptor amounts and their functionality in normotensive and spontaneously hypertensive rats. METHODS:experiments were performed on left ventricular cardiomyocytes isolated from Wistar rats and SHR (2-2.5 months). Molecular routine tools (RT-P...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2019.108109
更新日期:2019-10-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
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更新日期:1987-10-01 00:00:00
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pub_type: 杂志文章
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1993.1538
更新日期:1993-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:2006-02-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/j.abb.2015.03.017
更新日期:2015-05-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1993.1267
更新日期:1993-05-15 00:00:00
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pub_type: 杂志文章
doi:10.1006/abbi.1999.1232
更新日期:1999-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.abb.2012.08.005
更新日期:2012-12-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(84)90590-3
更新日期:1984-08-01 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1006/abbi.1997.0606
更新日期:1998-04-15 00:00:00
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journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章
doi:10.1016/0003-9861(86)90041-x
更新日期:1986-09-01 00:00:00
abstract::The flavoenzyme dihydroorotate dehydrogenase catalyzes the stereoselective oxidation of (S)-dihydroorotate to orotate in the fourth of the six conserved enzymatic reactions involved in the de novo pyrimidine biosynthetic pathway. Inhibition of pyrimidine metabolism by selectively targeting DHODHs has been exploited in...
journal_title:Archives of biochemistry and biophysics
pub_type: 杂志文章,评审
doi:10.1016/j.abb.2017.06.019
更新日期:2017-10-15 00:00:00