Results 61 to 70 of about 2,604,485 (241)

Mechanism for CCC DNA synthesis in hepadnaviruses. [PDF]

open access: yesPLoS ONE, 2009
Hepadnavirus replication requires the synthesis of a covalently closed circular (CCC) DNA from the relaxed circular (RC) viral genome by an unknown mechanism.
Ji A Sohn   +2 more
doaj   +1 more source

Nuclear EGFR modulation of DNA repair [PDF]

open access: yes, 2011
Overexpression of the epidermal growth factor receptor (EGFR) is associated with resistance to chemotherapy and radiotherapy. EGFR involvement, in repair of radiation-induced DNA damage, is mediated by association with the catalytic subunit of DNA ...
Liccardi, G.
core  

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

The role of HECT-type E3 ubiquitin ligases in DNA damage response and repair

open access: yesCell Death Discovery
The post-translational modification ubiquitination consists in a three-step reaction triggered by E1 ubiquitin activating enzymes, E2 ubiquitin conjugating enzymes, and E3 ubiquitin ligases.
Sara Giovannini   +6 more
doaj   +1 more source

Chemical inhibition of DNA repair kinases as a promising tool in oncology

open access: yesBiomedical Papers, 2016
Background: DNA repair pathways play a major role in tumour resistance towards chemo- and radiotherapy. Therefore, inhibitors of specific DNA repair pathways might be advantageous when used in combination with DNA-damaging agents, such as ionizing ...
Kamila Durisova   +3 more
doaj   +1 more source

Predictors of hepatitis B cure using gene therapy to deliver DNA cleavage enzymes: a mathematical modeling approach. [PDF]

open access: yesPLoS Computational Biology, 2013
Most chronic viral infections are managed with small molecule therapies that inhibit replication but are not curative because non-replicating viral forms can persist despite decades of suppressive treatment.
Joshua T Schiffer   +3 more
doaj   +1 more source

The fanconi anemia DNA repair pathway is regulated by an interaction between ubiquitin and the E2-like fold domain of FANCL [PDF]

open access: yes, 2015
The Fanconi Anemia (FA) DNA repair pathway is essential for the recognition and repair of DNA interstrand crosslinks (ICL). Inefficient repair of these ICL can lead to leukemia and bone marrow failure.
Howard, Mark J.   +8 more
core   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Human RECQL5{beta} stimulates flap endonuclease 1 [PDF]

open access: yes, 2010
Human RECQL5 is a member of the RecQ helicase family which is implicated in genome maintenance. Five human members of the family have been identified; three of them, BLM, WRN and RECQL4 are associated with elevated cancer risk. RECQL1 and RECQL5 have not
Dawut, Lale   +17 more
core   +3 more sources

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