Results 51 to 60 of about 1,237,824 (318)

Optimization of environmental DNA extraction and amplification methods for metabarcoding of deep-sea fish

open access: yesMethodsX, 2021
Analyses of environmental DNA (eDNA) from macroorganisms in aquatic environments have greatly advanced in recent years. In particular, eDNA metabarcoding of fish using universal PCR primers has been reported in various waters.
Masaru Kawato   +8 more
doaj   +1 more source

Mechanistic insights into the transcriptional arrest in the presence of Double Strand Breaks [PDF]

open access: yes, 2014
Double-strand breaks (DSBs) occur frequently in the genome during genome replication or by DNA damaging agents. DNA lesions affect fundamental DNA-dependent nuclear processes, such as replication and transcription.
Bonhomme, Celine   +6 more
core   +2 more sources

DNA-Dependent DNA Polymerases I and II from Normal Human-Blood Lymphocytes [PDF]

open access: yesProceedings of the National Academy of Sciences, 1972
Two DNA polymerases have been purified from blood lymphocytes of normal human individuals. In contrast to a DNA polymerase isolated from lymphoblasts from individuals with leukemia, neither of the DNA polymerases from normal lymphocytes transcribes the heteropolymeric regions of tumor-virus RNA into DNA.
R G, Smith, R C, Gallo
openaire   +2 more sources

Interactions of the Bacillus subtilis DnaE polymerase with replisomal proteins modulate its activity and fidelity [PDF]

open access: yesOpen Biology, 2017
During Bacillus subtilis replication two replicative polymerases function at the replisome to collectively carry out genome replication. In a reconstituted in vitro replication assay, PolC is the main polymerase while the lagging strand DnaE polymerase ...
Vasileios Paschalis   +5 more
doaj   +1 more source

RNA Polymerase II transcription independent of TBP in murine embryonic stem cells

open access: yeseLife, 2023
Transcription by RNA Polymerase II (Pol II) is initiated by the hierarchical assembly of the pre-initiation complex onto promoter DNA. Decades of research have shown that the TATA-box binding protein (TBP) is essential for Pol II loading and initiation ...
James ZJ Kwan   +8 more
doaj   +1 more source

Purification and Properties of Wild-type and Exonuclease-deficient DNA Polymerase II from Escherichia coli(*)

open access: yesJournal of Biological Chemistry, 1995
Wild-type DNA polymerase II (pol II) and an exonuclease-deficient pol II mutant (D155A/E157A) have been overexpressed and purified in high yield from Escherichia coli.
Hong Cai   +4 more
semanticscholar   +1 more source

DNA polymerase III from Saccharomyces cerevisiae. II. Inhibitor studies and comparison with DNA polymerases I and II.

open access: yesJournal of Biological Chemistry, 1988
The newly identified yeast DNA polymerase III was compared to DNA polymerases I and II and the mitochondrial DNA polymerase. Inhibition by aphidicolin (I50) of DNA polymerases I, II, and III was 4, 6, and 0.6 micrograms/ml, respectively. The mitochondrial enzyme was insensitive to the drug.
P M, Burgers, G A, Bauer
openaire   +2 more sources

Establishing a Genetic Detection Protocol of Single Nucleotide Polymorphisms Panels in Inbred Rats Based on Multiplex PCR-LDR

open access: yesShiyan dongwu yu bijiao yixue, 2023
Objective To establish a set of single nucleotide polymorphisms (SNP) detection protocol for inbred rats based on multiplex PCR-ligase detection reaction (LDR).Methods A total of 40 rats SNP sites were selected on chromosomes 1-20 and X of rats among 5 ...
ZHAO Liya   +7 more
doaj   +1 more source

DNA Polymerase II (ε) of Saccharomyces cerevisiaeDissociates from the DNA Template by Sensing Single-stranded DNA*

open access: yesJournal of Biological Chemistry, 1998
Two forms of DNA polymerase II (ε) ofSaccharomyces cerevisiae, Pol II* and Pol II, were purified to near homogeneity from yeast cells. Pol II* is a four-subunit complex containing a 256-kDa catalytic polypeptide, whereas Pol II consists solely of a 145 ...
S. Maki   +3 more
semanticscholar   +1 more source

The trans-activation domain of the sporulation response regulator Spo0A revealed by X-ray crystallography [PDF]

open access: yes, 2000
Sporulation in Bacillus involves the induction of scores of genes in a temporally and spatially co-ordinated programme of cell development. Its initiation is under the control of an expanded two-component signal transduction system termed a phosphorelay.
Baldus J.M.   +32 more
core   +1 more source

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