Results 121 to 130 of about 215,192 (350)

Novel Tetrazolium-Based Colorimetric Assay for Helicase nsp13 in SARS-CoV-2

open access: yesBioChem
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) is a human pathogenic virus that encodes for a helicase (SC2Hel) that is essential for viral replication. SC2Hel has the ability to unravel dsRNA or dsDNA in an NTP-dependent manner from the 5′
Triet M. Pham   +4 more
doaj   +1 more source

Structural insights into the nucleic acid remodeling mechanisms of the yeast THO-Sub2 complex

open access: yeseLife, 2020
The yeast THO complex is recruited to active genes and interacts with the RNA-dependent ATPase Sub2 to facilitate the formation of mature export-competent messenger ribonucleoprotein particles and to prevent the co-transcriptional formation of RNA:DNA ...
Sandra K Schuller   +6 more
doaj   +1 more source

Cryo-EM structure of a helicase loading intermediate containing ORC-Cdc6-Cdt1-MCM2-7 bound to DNA [PDF]

open access: yes, 2013
In eukaryotes, the Cdt1-bound replicative helicase core MCM2-7 is loaded onto DNA by the ORC-Cdc6 ATPase to form a prereplicative complex (pre-RC) with an MCM2-7 double hexamer encircling DNA.
A Costa   +68 more
core   +1 more source

Targeting DESI2 as a Novel Therapeutic Strategy for JAK2‐Mutant Leukemias

open access: yesAdvanced Science, EarlyView.
Mass spectrometry‐based proteomics identify DESI2 as a novel component of the JAK2‐V617F complex, which associates with and stabilizes mutant JAK2 through deSUMOylation and deubiquitination, therefore promoting JAK2 mutant cell growth and MPN disease onset in vivo.
Husheng Mei   +32 more
wiley   +1 more source

Cryo-EM structures of the eukaryotic replicative helicase bound to a translocation substrate

open access: yesNature Communications, 2016
The Cdc45-MCM-GINS (CMG) helicase unwinds DNA during the elongation step of eukaryotic genome duplication and this process depends on the MCM ATPase function.
F. Abid Ali   +7 more
semanticscholar   +1 more source

Multiple C-Terminal Tails within a Single \u3cem\u3eE. coli\u3c/em\u3e SSB Homotetramer Coordinate DNA Replication and Repair [PDF]

open access: yes, 2013
Escherichia coli single-stranded DNA binding protein (SSB) plays essential roles in DNA replication, recombination and repair. SSB functions as a homotetramer with each subunit possessing a DNA binding domain (OB-fold) and an intrinsically disordered C ...
Antony, Edwin   +7 more
core   +1 more source

The archaeal ATPase PINA interacts with the helicase Hjm via its carboxyl terminal KH domain remodeling and processing replication fork and Holliday junction. [PDF]

open access: yes, 2018
PINA is a novel ATPase and DNA helicase highly conserved in Archaea, the third domain of life. The PINA from Sulfolobus islandicus (SisPINA) forms a hexameric ring in crystal and solution.
Ahmad, Sohail   +9 more
core   +1 more source

EIF5A Couples Translational Control With Transcriptional Reprogramming Through Chromocenter Reorganization During Spermiogenesis

open access: yesAdvanced Science, EarlyView.
The translation factor Eukaryotic translation initiation factor 5A (eIF5A) is essential for male fertility in mice. It supports the translation of proteins crucial for heterochromatin organization and acrosome formation. eIF5A deficiency disrupts chromocenter integrity, increases chromatin accessibility, and causes transcriptional dysregulation ...
Yuling Cai   +15 more
wiley   +1 more source

Helicases at Work: The Importance of Nucleic Acids Unwinding Under Cold Stress

open access: yesDNA
Separation of duplex strands of nucleic acids is a vital process in the nucleic acid metabolism and survival of all living organisms. Helicases are defined as enzymes that are intended to unwind the double-stranded nucleic acids.
Theetha L. Pavankumar   +3 more
doaj   +1 more source

Structure of NS3 helicase from Zika virus

open access: yesNature Structural &Molecular Biology, 2016
Zika virus has emerged as a pathogen of major health concern. Here, we present a high-resolution (1.62-Å) crystal structure of the RNA helicase from the French Polynesia strain. The structure is similar to that of the RNA helicase from Dengue virus, with
R. Jain   +3 more
semanticscholar   +1 more source

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