Results 21 to 30 of about 375,655 (343)

Human Leukemic Cells: RNA‐Directed DNA Polymerase [PDF]

open access: bronzeEuropean Journal of Biochemistry, 1974
The enzyme(s) RNA‐dependent DNA polymerase (reverse transcriptase) has been isolated from human lymphocytic cell lines which have been derived from patients with leukemia, infectious mononucleosis, and from normal healthy donors. The reverse transcriptase was purified through high‐speed glycerol gradients, and by DEAE‐cellulose and phosphocellulose ...
L.S. Desai   +3 more
openalex   +5 more sources

Unwinding-like activity associated with avian retrovirus RNA-directed DNA polymerase [PDF]

open access: yesJournal of Virology, 1978
The avian retrovirus RNA-directed DNA polymerase contains an activity that is capable of removing hydrogen bonds from duplex nucleic acid molecules. This "unwinding-like" activity appears to be specific in its action, affecting RNA.DNA and DNA.DNA duplex molecules but not RNA.RNA duplexes.
M. Collett, J. Leis, M. Smith, A. Faras
semanticscholar   +4 more sources

Characterization of endogenous RNA-directed DNA polymerase activity of reticuloendotheliosis viruses [PDF]

open access: yesJournal of Virology, 1975
Reticuloendotheliosis viruses (REV) contain an endogenous RNA-directed DNA polymerase activity. The endogenous DNA polymerase activity can be elicited in purified preparations of REV by treatment with nonionic detergents. The enzyme activity has a strong preference for manganous ions.
C. Kang
semanticscholar   +4 more sources

Effect of UV Light on RNA-Directed DNA Polymerase Activity of Murine Oncornaviruses [PDF]

open access: yesJournal of Virology, 1975
The UV inactivation of RNA-directed DNA polymerase activity of Rauscher leukemia virus was shown to be due to damage to the protein. The UV dose resulting in 37% survival of viral polymerase activity at 254 nm was 2.4 × 10 4 to 3.1 × 10 4 ergs/mm 2 .
G. G. Lovinger   +3 more
semanticscholar   +4 more sources

RNA-mediated in vivo Directed Evolution in Yeast

open access: yesBio-Protocol, 2022
Directed evolution is a powerful approach to obtain genetically-encoded sought-for traits. Compared to the prolonged adaptation regimes to mutations occurring under natural selection, directed evolution unlocks rapid screening and selection of mutants ...
Emil Jensen, Michael Jensen
doaj   +1 more source

Endonuclease activity of purified RNA-directed DNA polymerase from avian myeloblastosis virus.

open access: yesJournal of Biological Chemistry, 1979
Highly purified preparations of RNA-directed DNA polymerase from avian myeloblastosis virus (AMV) contain a Mn2+-activated endonuclease activity capable of nicking supercoiled DNA. This endonuclease activity co-sediments in glycerol gradients with the alphabeta form of AMV DNA polymerase, and co-chromatographs with DNA polymerase activity on DEAE ...
M. Golomb, D. Grandgenett
semanticscholar   +4 more sources

A DCL3 dicing code within Pol IV-RDR2 transcripts diversifies the siRNA pool guiding RNA-directed DNA methylation

open access: yeseLife, 2022
In plants, selfish genetic elements, including retrotransposons and DNA viruses, are transcriptionally silenced by RNA-directed DNA methylation. Guiding the process are short interfering RNAs (siRNAs) cut by DICER-LIKE 3 (DCL3) from double-stranded ...
Andrew Loffer   +5 more
doaj   +1 more source

SHH1, a homeodomain protein required for DNA methylation, as well as RDR2, RDM4, and chromatin remodeling factors, associate with RNA polymerase IV. [PDF]

open access: yesPLoS Genetics, 2011
DNA methylation is an evolutionarily conserved epigenetic modification that is critical for gene silencing and the maintenance of genome integrity. In Arabidopsis thaliana, the de novo DNA methyltransferase, domains rearranged methyltransferase 2 (DRM2),
Julie A Law   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy