2–5 A synthetase
A Modified Coupled Spectrophotometric Method to Detect 2-5 Oligoadenylate Synthetase Activity in Prostate Cell Lines
... form 2-5A in presence of the enzyme OAS to the conversion of MESG substrate to purine based product with absorbance peak at 360 nm by using a commercially available ...to 2-amino-6-mercapto- 7-methylpurine ...
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Association of SARS susceptibility with single nucleic acid polymorphisms of OAS1 and MxA genes: a case control study
... Resent study showed that type I interferons (IFN-c/d) could inhibit SARS-CoV replication both in vivo and in vitro [8-10]. Type I interferons induce numerous proteins with antiviral activities, including ...
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Activation of the Interferon-Inducible 2′-5′-Oligoadenylate Synthetase Gene by Hepatitis C Virus Core Protein
... 40/46-kDa 2 ⴕ -5 ⴕ -oligoadenylate synthetase (2 ⴕ -5 ⴕ -OAS) gene promoter in a dose-dependent man- ner in different human hepatocyte cell lines (PH5CH8, HepG2, and ...the 2 ⴕ ...
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2′-5′-Oligoadenylate Synthetase-Like Protein Inhibits Respiratory Syncytial Virus Replication and Is Targeted by the Viral Nonstructural Protein 1
... synthesize 2=-5=-oligoadenylate (2-5A), which induces RNA degradation by activating RNase L (11, ...oligoadenylate synthetase-like protein (OASL) is related to the OAS family by its N-terminal ...
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Original Article Low expression of 2’-5’ oligoadenylate synthetase 1 predicted poor prognosis in colorectal cancer
... Abstract: 2’-5’ oligoadenylate synthetase 1 (OAS1) is an IFN inducible enzyme and can activate RNaseL, degrade cellular RNA and inhibit protein ...better 5-year overall survival rate ...
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Interferon-Inducible Oligoadenylate Synthetase-Like Protein Acts as an Antiviral Effector against Classical Swine Fever Virus via the MDA5-Mediated Type I Interferon-Signaling Pathway
... Co-IP and Western blotting. HEK293T cells were cotransfected with pFlag-pOASL and pMyc-pMDA5 or pMyc-pRIG-I expressing pMDA5 or pRIG-I (2 g each). At 48 hpt, the cells were lysed with NP-40 lysis buffer (catalog ...
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Extracellular 2′-5′ Oligoadenylate Synthetase Stimulates RNase L-Independent Antiviral Activity: a Novel Mechanism of Virus-Induced Innate Immunity
... Uptake of an OAS1-EGFP fusion protein by cells. In order to elucidate the fate of exogenously added OAS1, we con- structed an OAS1-EGFP fusion protein. The EGFP protein was fused to the C terminus of the OAS1 protein. As ...
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The Relationships between Energy Balance Deviations and Adiposity in Children and Adolescents
... the 2′-5′ oligoadenylate synthetase family consists of eight small Oas1 genes (Oas1a through Oas1h), an Oas2 gene, an Oas3 gene, and two Oas-like genes (OasL1 and OasL2) (Kakuta et ...single ...
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Immunohistochemical Analysis of Citrulline Nitric Oxide Cycle Enzymes and Glutamine Synthetase in Different Regions of Brain in Epilepsy Rat Model
... oxide synthetase, argininosuccinate synthetase, argininosuccinate lyase, glutamine synthetase in different regions of brain in rats of kainic acid mediated ...after 2 hours and the chronic ...
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Rotavirus Controls Activation of the 2′-5′-Oligoadenylate Synthetase/RNase L Pathway Using at Least Two Distinct Mechanisms
... the 2=-5=-oligoadenylate synthetase (OAS)/RNase L ...produce 2=-5= oligoadenylates, which are the activators of RNase L; this enzyme degrades viral and cellular RNAs, restricting viral ...
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Inhibition of Cellular 2′-5′ Oligoadenylate Synthetase by the Herpes Simplex Virus Type 1 Us11 Protein
... Us11 is sufficient to suppress OAS activity in HSV-1-in- fected cells. Experiments in the preceding section establish that Us11 loss-of-function mutants are unable to suppress OAS activity in vitro. While this suggests ...
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The 2′-5′-Oligoadenylate Synthetase 3 Enzyme Potently Synthesizes the 2′-5′-Oligoadenylates Required for RNase L Activation
... represents the inactive OAS form. Theoretical scattering data from pOAS1 was generated using CRYSOL (47). A second rigid-body model of OAS3 was generated using Bunch (46). As Bunch relies on high-resolution structures of ...
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Activation of 2′ 5′ oligoadenylate synthetase by stem loops at the 5′ end of the West Nile virus genome
... gene 5 (MDA-5), double stranded RNA-activated protein kinase (PKR), 29 59 -oligoadeny- late synthetases (OAS) and adenosine deaminase acting on RNAs (ADARs) ...
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2′-5′-Oligoadenylate synthetase 1 polymorphisms are associated with tuberculosis: a case-control study
... As a functional OAS1 polymorphic marker, rs10774671 was reported to be associated with disease/viral infection [36, 43]. rs10774671 is located at the last nucleotide of in- tron 6 in OAS1, which acts as a splice-acceptor ...
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Inhibition of 2′,5′-Oligoadenylate Synthetase Expression and Function by the Human Cytomegalovirus ORF94 Gene Product
... only 2 to 5% of exper- imentally latently infected GM-Ps (14, 28) will complicate these studies, but the potential for pORF94 to function in an immunoevasive capacity during both productive and latent ...
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Viral Encounters with 2′,5′-Oligoadenylate Synthetase and RNase L during the Interferon Antiviral Response
... Cardiovirus genus, activate OAS, causing accumulation of 2-5A (57, 106, 117). The RNA activators of OAS in EMCV-infected cells are probably the viral replicative intermediates. This was evidenced, for instance, by ...
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SYMPTOMATIC HYPOGLYCEMIA, VISCERAL FATTY METAMORPHOSIS, AND AGLYCOGENOSIS IN AN INFANT LACKING GLYCOGEN SYNTHETASE AND PHOSPHORYLASE
... AND AGLYCOGENOSIS IN AN INFANT LACKING GLYCOGEN SYNTHETASE SYMPTOMATIC HYPOGLYCEMIA, VISCERAL FATTY METAMORPHOSIS,. http://pediatrics.aappublications.org/content/35/5/770[r] ...
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Cytoplasmic leucyl-tRNA synthetase of Neurospora crassa is not specified by the leu-5 locus.
... We generated a Xgtl 1 Neurospora crassa cDNA library and screened the library for the cytoplasmic leucyl-tRNA synthetase (cyto LeuRS) clones using cyto LeuRS specific antib[r] ...
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2'-5'-oligoadenylate synthetase gene expression in normal and murine sarcoma virus-transformed NIH 3T3 cells.
... To elucidate the mechanism leading to this IFN sensitivity, the expression of the 2'-5'-oligoadenylate synthetase 2-5A synthetase gene, the presence of the 2-5A synthetase protein, and t[r] ...
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Protein binding to the interferon response enhancer correlates with interferon induction of 2'-5'-oligoadenylate synthetase in normal and interferon-resistant Friend cells.
... Conversely, the presence of only one specific IRS complex Fg correlates with the transcription of the 2-5A synthetase gene and the appearance of the corresponding mRNA and proteins after[r] ...
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