Results 51 to 60 of about 3,342,563 (345)

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Identification of Listeria Isolates by Using a Pragmatic Multilocus Phylogenetic Analysis

open access: yesMicrobiology Research
Species identification of Listeria isolates remained a tedious process still based on culturing methods that, in recent years, have led to the description of many species that are not even part of the genus Listeria.
Antonio Martínez-Murcia   +2 more
doaj   +1 more source

Stability issues of RT‐PCR testing of SARS‐CoV‐2 for hospitalized patients clinically diagnosed with COVID‐19

open access: yesJournal of Medical Virology, 2020
In this study, we collected a total of 610 hospitalized patients from Wuhan between February 2, 2020, and February 17, 2020. We reported a potentially high false negative rate of real‐time reverse‐transcriptase polymerase chain reaction (RT‐PCR) testing ...
Yafang Li   +6 more
semanticscholar   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

COVID-19 in Pakistan

open access: yesBioMedica, 2020
Coronavirus disease-2019 (COVID-19) outbreak was first declared as emergency on January 30th2020 by World Health Organization (WHO). The Government of Pakistan presented a National action plan, which aimed to inhibit the spread of this Corona virus and ...
Ghazala Rubi, Irfan Malik, Zainab Javaid
doaj   +1 more source

“Candidatus Phytoplasma balanitae” Associated with Witches’ Broom Disease of Jackal Jujube (Zizyphus oenoplia L.) in South India

open access: yesResearch in Agricultural Sciences, 2023
During survey, 12 Jackal jujube plant samples showing the symptoms of witches’ broom disease were collected from the Shivamogga district of Karnataka, India, between 2017 and 2018. The causal agent associated with Jackal jujube witches’ broom disease was
C. N. Lakshmınarayana Reddy   +5 more
doaj   +1 more source

Real time quantitative PCR.

open access: yesGenome Research, 1996
We have developed a novel "real time" quantitative PCR method. The method measures PCR product accumulation through a dual-labeled fluorogenic probe (i.e., TaqMan Probe).
Christian A. Heid   +3 more
semanticscholar   +1 more source

Massive and rapid COVID-19 testing is feasible by extraction-free SARS-CoV-2 RT-PCR

open access: yesNature Communications, 2020
Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is commonly diagnosed by reverse transcription polymerase chain reaction (RT-PCR) to detect viral RNA in patient samples, but RNA extraction ...
Ioanna Smyrlaki   +12 more
semanticscholar   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

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