Results 201 to 210 of about 665,876 (395)

Structural basis for a Polθ helicase small-molecule inhibitor revealed by cryo-EM

Nature Communications
DNA polymerase theta (Polθ) is a DNA helicase-polymerase protein that facilitates DNA repair and is synthetic lethal with homology-directed repair (HDR) factors. Thus, Polθ is a promising precision oncology drug-target in HDR-deficient cancers.
Fumiaki Ito, Ziyuan Li, Leonid Minakhin, Gurushankar Chandramouly, Mrityunjay Tyagi, Robert Betsch, John J. Krais, Bernadette Taberi, Umeshkumar Vekariya, Marissa Calbert, Tomasz Skorski, Neil Johnson, Xiaojiang S. Chen, Richard T. Pomerantz   +13 more
doaj   +1 more source

DNA sequence variation within maize and melon: observations from polymerase chain reaction amplification and direct sequencing. [PDF]

, 1990
Donna Shattuck-Eidens, Russel Bell, Susan L. Neuhausen, T. Helentjaris   +3 more
openalex   +1 more source

Construction of hyperthermostable d‐allulose 3‐epimerase from Arthrobacter globiformis M30 using the sequence information from Arthrobacter psychrolactophilus

FEBS Open Bio, EarlyView.
d‐Allulose can be produced from d‐fructose by d‐allulose 3‐epimerase. Based on sequence homology information, we successfully engineered thermostable mutants with the protein engineering method. By integrating positive mutations, we constructed an enzyme that exhibits hyperthermostability without a loss in the activity.
Kensaku Shimada, Kouhei Ohtani, Pushpa Kiran Gullapalli, Kazuhiko Ishikawa   +3 more
wiley   +1 more source

Retrotransposon Expression Is Upregulated in Adulthood and Suppressed during Regeneration of the Limb in the Axolotl (Ambystoma mexicanum)

Advanced Biology, EarlyView.
The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez, Nicolás Alcaraz, Karla Torres‐Arciga, José Antonio Ocampo‐Cervantes, Alejandra Cervera, Clementina Castro‐Hernández, Cynthia Gabriela Sámano‐Salazar, Ernesto Soto‐Reyes, Rodrigo González‐Barrios   +8 more
wiley   +1 more source

H2AX promotes replication fork degradation and chemosensitivity in BRCA-deficient tumours

Nature Communications
Histone H2AX plays a key role in DNA damage signalling in the surrounding regions of DNA double-strand breaks (DSBs). In response to DNA damage, H2AX becomes phosphorylated on serine residue 139 (known as γH2AX), resulting in the recruitment of the DNA ...
Diego Dibitetto, Martin Liptay, Francesca Vivalda, Hülya Dogan, Ewa Gogola, Martín González Fernández, Alexandra Duarte, Jonas A. Schmid, Morgane Decollogny, Paola Francica, Sara Przetocka, Stephen T. Durant, Josep V. Forment, Ismar Klebic, Myriam Siffert, Roebi de Bruijn, Arne N. Kousholt, Nicole A. Marti, Martina Dettwiler, Claus S. Sørensen, Jean-Christophe Tille, Manuela Undurraga, Intidhar Labidi-Galy, Massimo Lopes, Alessandro A. Sartori, Jos Jonkers, Sven Rottenberg   +26 more
doaj   +1 more source

Studies of RNA chain initiation by Escherichia coli RNA polymerase bound to T7 DNA. Direct analysis of the kinetics and extent of RNA chain initiation at T7 promoter A1.

, 1979
William C. Nierman, Michael J. Chamberlin   +1 more
openalex   +1 more source

Azotobacter vinelandii RNA polymerase. II - Effect of ribonuclease on polymerase activity [PDF]

Ribonuclease effect on polymerase activity during ribonucleic acid synthesis ...
Krakow, J. S.
core   +1 more source

Activation of SIRT1 Reduces Renal Tubular Epithelial Cells Fibrosis in Hypoxia Through SIRT1‐FoxO1‐FoxO3‐Autophagy Pathway

Advanced Biology, EarlyView.
Hypoxia promotes the epithelial‐mesenchymal transition (EMT) of renal tubular epithelial cells via the SIRT1‐FoxO1‐FoxO3‐autophagy pathway, thereby resulting in the fibrosis of renal tubular epithelial cells. Activation of SIRT1 or induction of autophagy inhibits this process, alleviating hypoxia‐induced fibrosis.
Guangyu Wang, Lijuan Zhang, Jiaorong Tan, Fei Li, Yishan Jin, Limei He, Xin Yang   +6 more
wiley   +1 more source

A conserved Pol II elongator SPT6L mediates Pol V transcription to regulate RNA-directed DNA methylation in Arabidopsis

Nature Communications
In plants, the plant-specific RNA polymerase V (Pol V) transcripts non-coding RNAs and provides a docking platform for the association of accessory proteins in the RNA-directed DNA methylation (RdDM) pathway.
Yujuan Liu, Jie Shu, Zhi Zhang, Ning Ding, Jinyuan Liu, Jun Liu, Yuhai Cui, Changhu Wang, Chen Chen   +8 more
doaj   +1 more source

tRNATrp as primer for RNA-directed DNA polymerase: structural determinants of function.

, 1979
Barbara Cordell, Ronald Swanstrom, H. M. Goodman, J. Michael Bishop   +3 more
openalex   +1 more source