Results 101 to 110 of about 125,618 (325)

Multiple low dose streptozotocin‐induced diabetes as a model for studying autoimmune diabetes in humans

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Multiple low dose streptozotocin‐induced diabetes is a valuable animal model of diabetes type 1. It should be improved by further research on autoantigens, microbiota and mucosal immune cells from the gut, but also from other organs. Abstract The autoimmune response directed against pancreatic β cells is the most essential pathogenic process in type 1 ...
Ivan Koprivica   +4 more
wiley   +1 more source

A conformational change in the helicase core is necessary but not sufficient for RNA unwinding by the DEAD box helicase YxiN [PDF]

open access: yes, 2017
Cooperative binding of ATP and RNA to DEAD-box helicases induces the closed conformation of their helicase core, with extensive interactions across the domain interface.
Karow, Anne R., Klostermeier, Dagmar
core  

RNA Helicase Proteins as Chaperones and Remodelers [PDF]

open access: yesAnnual Review of Biochemistry, 2014
Superfamily 2 helicase proteins are ubiquitous in RNA biology and have an extraordinarily broad set of functional roles. Central among these roles are the promotion of rearrangements of structured RNAs and the remodeling of ribonucleoprotein complexes (RNPs), allowing formation of native RNA structure or progression through a functional cycle of ...
Rick Russell, Inga Jarmoskaite
openaire   +3 more sources

Autosomal Recessive Cerebellar Ataxias: Translating Genes to Therapies

open access: yesAnnals of Neurology, EarlyView.
Autosomal recessive cerebellar ataxias are disabling neurodegenerative genetic conditions affecting balance and coordination. Advancements in genomic testing have improved diagnosis, leading to a new focus on the development of targeted precision therapeutics addressing cellular, biochemical, and genetic disease mechanisms with a resulting emphasis on ...
Brent L. Fogel   +10 more
wiley   +1 more source

Structural basis of TFIIH activation for nucleotide excision repair. [PDF]

open access: yes, 2019
Nucleotide excision repair (NER) is the major DNA repair pathway that removes UV-induced and bulky DNA lesions. There is currently no structure of NER intermediates, which form around the large multisubunit transcription factor IIH (TFIIH).
Chernev, A.   +5 more
core   +2 more sources

The diverse roles of RNA helicases in RNAi [PDF]

open access: yesCell Cycle, 2009
RNA interference (RNAi) is a regulatory gene silencing system found in nearly all eukaryotic organisms that employs small RNAs, typically 20-25 nucleotides long, to target complementary sequences found in mRNAs. RNA helicases use ATP to unwind double-stranded RNA (dsRNA), and are known to participate at nearly every level of RNA metabolism. A multitude
Aaron M. Ambrus, Maxim V. Frolov
openaire   +3 more sources

Structural insights into RNA processing by the human RISC-loading complex. [PDF]

open access: yes, 2009
Targeted gene silencing by RNA interference (RNAi) requires loading of a short guide RNA (small interfering RNA (siRNA) or microRNA (miRNA)) onto an Argonaute protein to form the functional center of an RNA-induced silencing complex (RISC).
AD Haase   +41 more
core   +2 more sources

Mechanism of nucleic acid unwinding by SARS-CoV helicase. [PDF]

open access: yesPLoS ONE, 2012
The non-structural protein 13 (nsp13) of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) is a helicase that separates double-stranded RNA (dsRNA) or DNA (dsDNA) with a 5' → 3' polarity, using the energy of nucleotide hydrolysis.
Adeyemi O Adedeji   +7 more
doaj   +1 more source

Transcriptional profiling of colicin-induced cell death of Escherichia coli MG1655 identifies potential mechanisms by which bacteriocins promote bacterial diversity [PDF]

open access: yes, 2004
We report the transcriptional response of Escherichia coli MG1655 to damage induced by colicins E3 and E9, bacteriocins that kill cells through inactivation of the ribosome and degradation of chromosomal DNA, respectively. Colicin E9 strongly induced the
Hinton, Jay C. D.   +6 more
core   +2 more sources

Primase is required for helicase activity and helicase alters the specificity of primase in the enteropathogen Clostridium difficile [PDF]

open access: yesOpen Biology, 2016
DNA replication is an essential and conserved process in all domains of life and may serve as a target for the development of new antimicrobials. However, such developments are hindered by subtle mechanistic differences and limited understanding of DNA ...
Erika van Eijk   +8 more
doaj   +1 more source

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