Results 41 to 50 of about 408,006 (311)

The Inhibitory Action of Kohamaic Acid A Derivatives on Mammalian DNA Polymerase β

open access: yesMolecules, 2008
We previously isolated a novel natural product, designated kohamaic acid A (KA-A, compound 1), as an inhibitor of the first cleavage of fertilized sea urchin eggs, and found that this compound could selectively inhibit the activities of mammalian DNA ...
Yoshiyuki Mizushina   +9 more
doaj   +1 more source

Engagement of Components of DNA-Break Repair Complex and NFκB in Hsp70A1A Transcription Upregulation by Heat Shock. [PDF]

open access: yesPLoS ONE, 2017
An involvement of components of DNA-break repair (DBR) complex including DNA-dependent protein kinase (DNA-PK) and poly-ADP-ribose polymerase 1 (PARP-1) in transcription regulation in response to distinct cellular signalling has been revealed by ...
Joyita Hazra   +4 more
doaj   +1 more source

A Genomic Point Mutation in the Extracellular Domain of the Thyrotropin Receptor in Patients with Graves’ Ophthalmopathy [PDF]

open access: yes, 1994
Orbital and pretibial fibroblasts are targets of autoimmune attack in Graves' ophthalmopathy (GO) and pretibial dermopathy (PTD). The fibroblast autoantigen involved in these peripheral manifestations of Graves' disease and the reason for the association
Bahn, Rebecca S.   +3 more
core   +1 more source

Isolation and physical properties of the DNA‐directed RNA polymerase from Thermus thermophilus HB8 [PDF]

open access: yesEuropean Journal of Biochemistry, 1990
The DNA‐directed RNA polymerase from the extremely thermophilic eubacterium Thermus thermophilus HB8 was purified employing a new and rapid method. The subunit pattern of the enzyme, analyzed by SDS gel electrophoresis, was interpreted as: 140 kDa and 170 kDa for β and β′, 40 kDa for α and 92 kDa for ó.
S, Wnendt   +3 more
openaire   +2 more sources

Visualizing DNA polymerase ι catalyze Hoogsteen-directed DNA synthesis

open access: yesNature Communications
Translesion synthesis polymerases efficiently incorporate nucleotides opposite DNA lesions. Pol ι, for example, bypasses minor-groove and exocyclic purine adducts.
Zach Frevert   +6 more
doaj   +1 more source

Mutations that Separate the Functions of the Proofreading Subunit of the Escherichia coli Replicase

open access: yes, 2015
The dnaQ gene of Escherichia coli encodes the Ɛ subunit of DNA polymerase III, which provides the 3\u27 - 5\u27 exonuclease proofreading activity of the replicative polymerase.
Kreuzer, Kenneth N., Whatley, Zakiya
core   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

What influences DNA replication rate in budding yeast? [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: DNA replication begins at specific locations called replication origins, where helicase and polymerase act in concert to unwind and process the single DNA filaments. The sites of active DNA synthesis are called replication forks.
Thomas W Spiesser   +3 more
doaj   +1 more source

Hamster leukemia virus: lack of endogenous DNA synthesis and unique structure of its DNA polymerase [PDF]

open access: yes, 1974
Infectious hamster leukemia virus (HaLV) contains a DNA polymerase different from those of murine and avian viruses. No endogenous reaction directed by the 60 to 70S RNA of HaLV could be demonstrated in detergenttreated HaLV virions, nor could the ...
Baltimore, David   +3 more
core  

Template-directed biopolymerization: tape-copying Turing machines

open access: yes, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

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