Results 101 to 110 of about 665,876 (395)

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source

RNA polymerase II stalling promotes nucleosome occlusion and pTEFb recruitment to drive immortalization by Epstein-Barr virus [PDF]

, 2011
Epstein-Barr virus (EBV) immortalizes resting B-cells and is a key etiologic agent in the development of numerous cancers. The essential EBV-encoded protein EBNA 2 activates the viral C promoter (Cp) producing a message of ~120 kb that is differentially ...
A Bakos, A Bell, A Dey, A Lin, AI Bell, B Kempkes, B Sugden, BM Peterlin, C Lee, CD Gregory, CF Bourgeois, CH Wu, CH Wu, D Ivanov, DA Gilchrist, DC Hargreaves, DS Gilmour, DS Gilmour, DY Wu, DY Wu, E Johannsen, E Klein, EA Abbate, G Kelly, G Laux, H Gross, H Kirby, Helen M. Webb, I Tempera, J You, JH Yik, JI Cohen, K Fujinaga, KD Robertson, KD Robertson, L Waltzer, L Wang, M Ottinger, M Woisetschlaeger, M Woisetschlaeger, Michelle J. West, MJ West, MK Jang, N Alazard, N Kaplan, NA Brown, NF Marshall, NP Gomes, P Filippakopoulos, Paul M. Lieberman, R Tierney, Richard D. Palermo, S Egloff, S Egloff, S Swaminathan, SH Chao, SJ Bark-Jones, SR Grossman, SY Wu, T Fujita, T Fujita, T Henkel, T Wada, T Wada, U Zimber-Strobl, VT Nguyen, W Lucchesi, W Yue, W Yue, W Yue, W Zhu, X Tong, X Tong, X Tong, YK Kim, Z Yang   +75 more
core   +3 more sources

Evolutionary interplay between viruses and R‐loops

FEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi, Zita Képes, Zoltán Szabó, Eszter Csoma, Lóránt Székvölgyi   +4 more
wiley   +1 more source

Low Cost DNA Molecular Weight Marker: Primer-Directed Synthesis from pGEM-T Easy Vector

Walailak Journal of Science and Technology, 2011
A low cost DNA molecular weight marker was produced by a marker primer-directed synthetic method using pGEM-T Easy vector as the DNA template. Seven primers were used to amplify eight different DNA fragments, which were 150, 300, 375, 500, 700, 1,000, 1 ...
Siriporn RIYAJAN, Wiparat YENTUA, Jaros PHINCHONGSAKULDIT   +2 more
doaj   +1 more source

Role of RNA Interference (RNAi) in the Moss Physcomitrella patens [PDF]

, 2013
RNA interference (RNAi) is a mechanism that regulates genes by either transcriptional (TGS) or posttranscriptional gene silencing (PTGS), required for genome maintenance and proper development of an organism.
Arif, Muhammad Asif, Frank, Wolfgang, Khraiwesh, Basel   +2 more
core   +3 more sources

Clinical applications of next‐generation sequencing‐based ctDNA analyses in breast cancer: defining treatment targets and dynamic changes during disease progression

Molecular Oncology, EarlyView.
Circulating tumor DNA (ctDNA) offers a possibility for different applications in early and late stage breast cancer management. In early breast cancer tumor informed approaches are increasingly used for detecting molecular residual disease (MRD) and early recurrence. In advanced stage, ctDNA provides a possibility for monitoring disease progression and
Eva Valentina Klocker, Samantha Hasenleithner, Rupert Bartsch, Simon P. Gampenrieder, Daniel Egle, Christian F. Singer, Gabriel Rinnerthaler, Michael Hubalek, Katja Schmitz, Zsuzsanna Bago‐Horvath, Andreas Petzer, Sonja Heibl, Ellen Heitzer, Marija Balic, Michael Gnant   +14 more
wiley   +1 more source

Electrostatic map of T7 DNA. Comparative analysis of functional and electrostatic properties of T7 RNA polymerase specific promoters [PDF]

, 2013
The entire T7 bacteriophage genome contains 39937 base pairs (Database NCBI RefSeq N1001604). Here, electrostatic potential distribution around double helical T7 DNA was calculated by Coulomb method using the computer program of Sorokin A.A. Electrostatic profiles of 17 promoters recognized by T7 phage specific RNA polymerase were analyzed.
arxiv   +1 more source

Bayesian inference of polymerase dynamics over the exclusion process [PDF]

arXiv, 2021
Transcription is a complex phenomenon that permits the conversion of genetic information into phenotype by means of an enzyme called RNA polymerase, which erratically moves along and scans the DNA template. We perform Bayesian inference over a paradigmatic mechanistic model of non-equilibrium statistical physics, i.e., the asymmetric exclusion ...
arxiv  

Navigating directed evolution efficiently: optimizing selection conditions and selection output analysis

Frontiers in Molecular Biosciences
Directed evolution is a powerful tool that can bypass gaps in our understanding of the sequence-function relationship of proteins and still isolate variants with desired activities, properties, and substrate specificities.
Paola Handal-Marquez, Hoai Nguyen, Vitor B. Pinheiro   +2 more
doaj   +1 more source

Bst polymerase — a humble relative of Taq polymerase

Computational and Structural Biotechnology Journal, 2023
DNA polymerases are a superfamily of enzymes synthesizing DNA using DNA as a template. They are essential for nucleic acid metabolism and for DNA replication and repair.
Igor Oscorbin, Maxim Filipenko
doaj