Results 61 to 70 of about 4,271,507 (162)

Positive-Strand RNA Viral RdRps: From Structure Conservation and Activity Assay to Drug Development

Molecules
Positive-strand RNA viruses represented by SARS-CoV-2 and DENV spread globally with high infectivity and frequent mutations, posing a severe threat to human health. However, specific and effective antiviral drugs remain limited.
Siyuan Zhao, Ziyu Lin, Minglian Wang
doaj   +1 more source

Expression and purification of tag-free SARS-CoV-2 RNA-dependent RNA polymerase in Escherichia coli

STAR Protocols, 2021
Summary: The RNA-dependent-RNA polymerase (RdRp) from SARS-CoV-2 is an important drug target because it is responsible for viral RNA genome replication. Efficient production of recombinant RdRp is important in screening antivirals to treat COVID-19. Here,
Tyler L. Dangerfield, Nathan Z. Huang, Kenneth A. Johnson   +2 more
doaj   +1 more source

A Dual‐Membrane Biomimetic Nanoplatform Enables Triple‐Modal Therapy Against SARS‐CoV‐2 Through Viral Decoy, Inflammation Neutralizing, and Intracellular RNAi

Advanced Science, EarlyView.
[A&T]MLN is a triple‐modal nanoplatform with siRNA‐loaded LN coated with hybrid ACE2/macrophage membrane. It blocks viral entry, neutralizes IL‐6/IL‐1β/TNF‐α, and delivers siRNA to suppress viral replication. In a murine lung injury model, it attenuates inflammation, offering a multi‐pronged strategy against SARS‐CoV‐2 variants and hyperinflammation ...
Hui Li, Bohan Zhang, Chao Shang, Yi Li, Te Zhao, Shengya Liu, Dan Liu, Junwei Che, Cuiling Zhang, Pinghui Wu, Wenjie Yang, Junjie Ding, Yuhua Ran, Yanan Zhai, Haihua Xiao, Jing Gao, Xiao Li, Chunsheng Gao, Lin Li, Zhiping Li   +19 more
wiley   +1 more source

NeoRdRp2 with improved seed data, annotations, and scoring

Frontiers in Virology
RNA-dependent RNA polymerase (RdRp) is a marker gene for RNA viruses; thus, it is widely used to identify RNA viruses from metatranscriptome data. However, because of the high diversity of RdRp domains, it remains difficult to identify RNA viruses using ...
Shoichi Sakaguchi, Takashi Nakano, So Nakagawa, So Nakagawa, So Nakagawa   +4 more
doaj   +1 more source

NS1‐Induced PARP1 Phase Transitions Prolongs Host Transcriptional Pausing to Promote Influenza A Virus Replication

Advanced Science, EarlyView.
After IAV infection, NS1 induces PARP1 phase transition, reducing molecular mobility in condensates, prolonging host transcriptional pause, aiding RdRp cap snatching, and promoting viral transcription. ABSTRACT Influenza A virus (IAV) commandeers host transcriptional machinery to replicate, but mechanisms remain elusive.
Shufeng Ma, Changyuan Kang, Xixian Liu, Lichao Yang, Mengyi Li, Yuting Ye, Jianfang Zhang, Yingjun Li, Guanghui Jin, Yang Liu, Xiaohong Chen, Kexin Wang, Zifeng Yang   +12 more
wiley   +1 more source

An Oral Antiviral Combination Against Severe COVID‐19 Enabled by the Synergistic Mechanisms of Action of Auranofin and Remdesivir

Advanced Science, EarlyView.
FDA‐approved anti‐inflammatory drug Auranofin inhibits SARS‐CoV‐2 replication by inhibiting viral Main protease activity and Spike processing required for viral entry. It shows strong synergy with nucleoside analogue Remdesivir, due to non‐overlapping mechanisms.
Oyahida Khatun, Rohan Narayan, Santhosh Kambaiah Nagaraj, Rishad Shiraz, Abinaya Kaliappan, Sumandeep Kaur, Ankur Singh, Siva Shanmugam Selvaraj, Gudepalya Renukaiah Rudramurthy, Chakenahalli Naveenkumar, Shridhar Narayanan, Radha Krishan Shandil, Shailly Tomar, Shashank Tripathi   +13 more
wiley   +1 more source

use of RNA-dependent RNA polymerase (RdRp) inhibitors against SARS-CoV2 infection

, 2020
We described the importance of developing a vaccine against RdRp and discussed Favipiravir and ...
Chales Allen, , Arjona, Sterling, Santerre, Maryline, Sawaya, Bassel   +3 more
openaire   +1 more source

Homology Modeling and Analysis of Structure Predictions of the Bovine Rhinitis B Virus RNA Dependent RNA Polymerase (RdRp) [PDF]

International Journal of Molecular Sciences, 2012
Bovine Rhinitis B Virus (BRBV) is a picornavirus responsible for mild respiratory infection of cattle. It is probably the least characterized among the aphthoviruses. BRBV is the closest relative known to Foot and Mouth Disease virus (FMDV) with a ~43% identical polyprotein sequence and as much as 67% identical sequence for the RNA dependent RNA ...
Rai, Devendra K., Rieder, Elizabeth
openaire   +2 more sources

Fidelity variants of RNA dependent RNA polymerases uncover an indirect, mutagenic activity of amiloride compounds. [PDF]

PLoS Pathogens, 2010
In a screen for RNA mutagen resistance, we isolated a high fidelity RNA dependent RNA polymerase (RdRp) variant of Coxsackie virus B3 (CVB3). Curiously, this variant A372V is also resistant to amiloride.
Laura I Levi, Nina F Gnädig, Stéphanie Beaucourt, Malia J McPherson, Bruno Baron, Jamie J Arnold, Marco Vignuzzi   +6 more
doaj   +1 more source

The N-Terminal α-Helix of Potato Virus X-Encoded RNA-Dependent RNA Polymerase Is Required for Membrane Association and Multimerization

Viruses, 2022
Positive-sense single-stranded RNA viruses replicate in virus-induced membranous organelles for maximum efficiency and immune escaping. The replication of potato virus X (PVX) takes place on the endoplasmic reticulum (ER); however, how PVX-encoded RNA ...
Xue Jiang, Yameng Luan, Mengzhu Chai, Yingshuai Yang, Yuting Wang, Wenjia Deng, Yonggang Li, Xiaofei Cheng, Xiaoyun Wu   +8 more
doaj   +1 more source