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Open AccessJournal ArticleDOI

Purification and properties of a host cell protein required for poliovirus replication in vitro.

Margaret H. Baron, +1 more
- 25 Oct 1982 - 
- Vol. 257, Iss: 20, pp 12351-12358
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TLDR
A host cell protein required for poliovirus RNA-dependent RNA replicase activity in vitro has been purified several thousand-fold from an uninfected HeLa cell postmitochondrial supernatant.
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This article is published in Journal of Biological Chemistry.The article was published on 1982-10-25 and is currently open access. It has received 53 citations till now. The article focuses on the topics: Host factor & RNA-dependent RNA polymerase.

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Book ChapterDOI

Replication of Flaviviruses

TL;DR: Flaviviruses were classified as members of the togavirus family until 1984, when the International Committee for the Nomenclature of Viruses voted to make Flaviviridae a separate family.
Journal Article

Functional oligomerization of poliovirus RNA-dependent RNA polymerase.

TL;DR: A model in which poliovirus 3D polymerase functions both as a catalytic polymerase and as a cooperative single-stranded RNA-binding protein during RNA-dependent RNA synthesis is proposed.
Journal ArticleDOI

Coupled translation and replication of poliovirus RNA in vitro: synthesis of functional 3D polymerase and infectious virus.

TL;DR: Overall, the kinetics of poliovirus replication (protein synthesis, polymerase activity, and virus production) observed in the HeLa S10-initiation factor in vitro translation reactions were similar to those observed in infected cells.
Journal ArticleDOI

Purification and properties of poliovirus RNA polymerase expressed in Escherichia coli.

TL;DR: A cDNA clone encoding the RNA polymerase of poliovirus has been expressed in Escherichia coli under the transcriptional control of a T7 bacteriophage promoter, and the enzyme exhibits poly(A)-dependent oligo(U)-primed poly(U) polymerase activity as well as RNA polymer enzyme activity.
Journal ArticleDOI

Viral RNA polymerases.

TL;DR: This review shows that the viral RNA polymerases are complex in both structure and function, being composed of multiple subunits and carrying multiple functions.
References
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Journal ArticleDOI

A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding

TL;DR: This assay is very reproducible and rapid with the dye binding process virtually complete in approximately 2 min with good color stability for 1 hr with little or no interference from cations such as sodium or potassium nor from carbohydrates such as sucrose.
Journal ArticleDOI

A Method for Determining the Sedimentation Behavior of Enzymes: Application to Protein Mixtures

TL;DR: Sucrose gradient centrifugation is found to be a suitable method for determining sedimentation coefficients of enzymes in protein mixtures and the sedimentation behavior of several of the enzymes in the pathway of histidine biosynthesis in S. typhimurium has been determined.
Journal ArticleDOI

Determination of molecular weights and frictional ratios of proteins in impure systems by use of gel filtration and density gradient centrifugation. Application to crude preparations of sulfite and hydroxylamine reductases

TL;DR: With a Stokes radius measured by the chromatographic method and a sedimentation coefficient determined by density gradient centrifugation, reasonable estimates for both the molecular weight and the frictional ratio (f/f0) of a macromolecule are available.
Journal ArticleDOI

Methylmercury as a reversible denaturing agent for agarose gel electrophoresis.

TL;DR: It appears that complete denaturation of any base-paired secondary structural feature of a nucleic aicd can be achieved at practical concentrations of CH3HgOH.
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