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Representative structures of SARS-CoV-2 and development of therapeutic agents for targeting these proteins

Researchers from China summarized the representative structures of SARS-CoV-2 proteins and discussed the development of novel therapeutic agents for targeting these proteins to treat and prevent COVID-19.

2 Feb 2022

Investigating the presence of human rRNA in the SARS-CoV-2 genome

In a new study, a team of researchers investigated the existence of SARS-CoV-2-host chimeric RNA and described two novel human-derived genomic insertions present in the circulating variants of SARS-CoV-2.

13 Jan 2022

Study confirms coronavirus RNA synthesis occurs inside membrane-bound compartments

Researchers have experimentally proved that virus-related double-stranded RNA (dsRNA) and the sites of viral RNA synthesis are associated with one another.

22 Dec 2021

SARS-CoV-2 moves between permissive cells and non-permissive neuronal cells via tunneling nanotubes (TNT)

Scientists investigate the neuroinvasive potential of SARS-CoV-2 and the role of tunneling nanotubes (TNTs) in spreading the infection to neighboring cells.

23 Nov 2021

Coronaviruses synthesize RNA in membrane-bound compartments

A team of researchers show that IBV viral RNA synthesis occurs within the membrane-bound compartment

10 Nov 2021

SARS-CoV-2 infection regulates protein arginylation

A new study explores the role of arginylation during SARS-CoV-2 infection.

9 Nov 2021

Can targeting autophagy become a new approach to COVID-19 treatment?

In a recent review, the author discusses autophagy as a contributing mechanism of selected drugs that are currently being evaluated to treat COVID‐19.

25 Oct 2021

A multi-scale cryo-correlative platform to image SARS-CoV-2 in Vero cells

A new study describes the cytopathic episodes triggered by SARS-CoV-2 with virus replication processes in frozen-hydrated cells.

9 Aug 2021

Researchers discover titanium oxide nanoparticle that recognizes SARS-CoV-2’s non-structural protein 1

A pioneering study reports on the interaction of a tailored titanium oxide nanoparticle (NP) with the full-length SARS-CoV-2 non-structural protein 1 (nsp1). This should be of value in developing new therapeutic tools against coronaviruses that act by targeting their proteins. It could also help map the structure of activated proteins.

2 Aug 2021

Polyuridine sequence of mouse coronavirus can be targeted to prevent host cell death

A new study reports the use of a modified deoxyribonucleic acid (DNA) oligonucleotide that has a 3’ polyadenine (polyA) tail to bind to the 5’-polyU tract in the mouse coronavirus (MHV-A59). Treatment of mouse cells infected with MHV-A59 with this molecule led to a marked reduction in cell deaths.

2 Aug 2021

Could novel biosensors facilitate SARS-CoV-2 antiviral drug research?

An intriguing new study presents a novel approach to biosensor-based evaluation of promising drugs that could inhibit the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) via its 3C-like protease (3CLpro), a viral protease.

2 Aug 2021

SARS-CoV-2 infection induces accumulation of lipids and N-proteins

Scientists from the Netherlands and the US recently studied the localization of the SARS-CoV-2 proteins in postmortem lung tissues of COVID-19 patients and in SARS-CoV-2 infected Vero cells that were processed identically. The research is posted to the bioRxiv* preprint server, prior to peer review.

29 Jun 2021

Study examines SARS-CoV-2 replication in cells using super-resolution microscopy

Despite tremendous efforts by the global scientific community to curb the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), by developing more efficient testing protocols, therapies, and vaccines at a rapid pace, relatively little is known about the dynamics of SARS-CoV-2 replication within cells.

18 Jun 2021

Scientists reveal the mechanism of liquid-liquid phase separation of SARS-CoV-2 nucleocapsid

A team of scientists from the United States has recently revealed how interactions between the SARS-CoV-2 nucleocapsid protein and the double-stranded RNA motifs impart distinct droplet properties that can support multiple viral functions. The study is currently available on the bioRxiv* preprint server.

16 Jun 2021

Researchers develop new imaging technique for studying nanoscale coronavirus-host interactions

Lei S. Qi of Stanford University, California, and colleagues published research showing a potential framework to better characterize coronaviruses' biology. While most high-resolution imaging techniques show the life cycle of coronaviruses, identifying viral or host proteins and genomes remains poorly understood. Their results use multi-color super-resolution imaging allows them to study nanoscopic parts of the coronavirus, including RNA.

14 Jun 2021

Study explores therapeutic potential of exploiting autophagy cascade against COVID-19

Researchers recently reviewed current knowledge on links between autophagy and coronaviruses and how this knowledge can be used to repurpose autophagy modulators as potential treatment options for COVID-19. The review is published in the journal Frontiers in Microbiology.

7 Jun 2021

SARS-CoV-2 Nsp2 structure revealed by cryo-EM and AI

Researchers in the United States analyzed the non-structural protein 2 (Nsp2) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in order to better understand its function and to guide future drug discovery. The research paper is currently available on bioRxiv* preprint server.

16 May 2021

Phosphatidic acid is a key common substrate for hepatitis C and SARS-CoV-2 replication

A new study, released as a preprint on the bioRxiv* server, focuses on the lipid molecule called phosphatidic acid (PA), showing its crucial role in the replication of this virus, and thus its potential as a target for therapeutic intervention.

13 May 2021

Researchers provide ultrastructural details of SARS-CoV-2-infected respiratory epithelial cells

A team of scientists from the United Kingdom recently investigated the ultrastructural details of the attachment, entry, and budding processes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the human airway epithelium. They have used a highly differentiated air-liquid interface cultures of airway epithelium to thoroughly investigate the viral infection cycle. The study is currently available on the bioRxiv* preprint server.

12 Apr 2021

CRISPR screen identifies clinically approved immunosuppressants that could treat coronavirus infections

Researchers in Switzerland and Germany have identified host cell factors required for coronavirus replication that could serve as targets for treatment with clinically-approved drugs.

25 Feb 2021

Double Membrane News and Research

Representative structures of SARS-CoV-2 and development of therapeutic agents for targeting these proteins

Investigating the presence of human rRNA in the SARS-CoV-2 genome

Study confirms coronavirus RNA synthesis occurs inside membrane-bound compartments

SARS-CoV-2 moves between permissive cells and non-permissive neuronal cells via tunneling nanotubes (TNT)

Coronaviruses synthesize RNA in membrane-bound compartments

SARS-CoV-2 infection regulates protein arginylation

Can targeting autophagy become a new approach to COVID-19 treatment?

A multi-scale cryo-correlative platform to image SARS-CoV-2 in Vero cells

Researchers discover titanium oxide nanoparticle that recognizes SARS-CoV-2’s non-structural protein 1

Polyuridine sequence of mouse coronavirus can be targeted to prevent host cell death

Could novel biosensors facilitate SARS-CoV-2 antiviral drug research?

SARS-CoV-2 infection induces accumulation of lipids and N-proteins

Study examines SARS-CoV-2 replication in cells using super-resolution microscopy

Scientists reveal the mechanism of liquid-liquid phase separation of SARS-CoV-2 nucleocapsid

Researchers develop new imaging technique for studying nanoscale coronavirus-host interactions

Study explores therapeutic potential of exploiting autophagy cascade against COVID-19

SARS-CoV-2 Nsp2 structure revealed by cryo-EM and AI

Phosphatidic acid is a key common substrate for hepatitis C and SARS-CoV-2 replication

Researchers provide ultrastructural details of SARS-CoV-2-infected respiratory epithelial cells

CRISPR screen identifies clinically approved immunosuppressants that could treat coronavirus infections

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