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MD65 IgG-YTE shows powerful post-exposure neutralization of SARS-CoV-2

A recent study published in the preprint server bioRxiv in October 2020 describes a reliable animal model to demonstrate the powerful capacity of human neutralizing mAbs directed against SARS-CoV-2 to prevent viral binding the host cell receptor and thus block infection. This indicates the lifesaving value of mAbs in severe COVID-19.

29 Oct 2020

Simple diagnostic can help deliver urgent treatment to people at risk of dying from rapid blood loss

Engineers at Monash University in Australia have developed a fast, portable and cheap diagnostic that can help deliver urgent treatment to people at risk of dying from rapid blood loss.

29 Oct 2020

Antiviral inhibitor DDX42 shows broad activity against Chikungunya, HIV and SARS-CoV-2

By exploiting type 1 interferon's ability to foster an antagonistic cellular environment for viral replication, a research group from France pinpointed DEAD-box RNA helicase DDX42 as an intrinsic inhibitor of HIV, but also other pathogenic viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and Chikungunya virus.

29 Oct 2020

Majority of people infected with mild-to-moderate COVID 19 mount robust antibody response

The vast majority of individuals infected with mild-to-moderate COVID 19 mount a robust antibody response that is relatively stable for at least five months, according to research conducted at the Icahn School of Medicine at Mount Sinai and published October 28, in the journal Science.

29 Oct 2020

Researchers develop controllable system for mimicking biochemical reaction cascades in cells

Researchers at the University of Basel have developed a precisely controllable system for mimicking biochemical reaction cascades in cells.

29 Oct 2020

Genome-wide CRISPR screens reveal resistance and sensitization mechanisms of drugs used in COVID-19

By leveraging nucleotide triphosphate analog-induced cell death, Chinese researchers unveiled genes that affect the import, export, and metabolism of pervasively used antiviral drugs in the treatment of coronavirus disease (COVID-19). This exciting study is currently available on the bioRxiv* preprint server.

28 Oct 2020

Scientists compare ACE2 interaction with SARS-CoV-2 across species

Like other pathogenic coronaviruses, SARS-CoV-2 crossed the species barrier to cause human disease. This fact motivated the current study, published on the preprint server bioRxiv* in October 2020, which explores the way coronaviruses engage their host cell receptors in a range of animals.

28 Oct 2020

Scientists design 3D map to understand the behavior of novel coronavirus

To better understand how the novel coronavirus behaves and how it can be stopped, scientists have completed a three-dimensional map that reveals the location of every atom in an enzyme molecule critical to SARS-CoV-2 reproduction.

28 Oct 2020

Lianhuaqingwen capsule is effective for treating COVID-19 pneumonia

Lianhuaqingwen (LHQW) capsule, a herb medicine product, has been clinically proved to be effective in coronavirus disease 2019 (COVID-19) pneumonia treatment. However, human exposure to LHQW components and their pharmacological effects remain largely unknown.

28 Oct 2020

Furin cleavage site and D614G on SARS-CoV-2 spike evolved to balance infectivity, stability, cytopathicity

SARS-CoV-2 is the causative agent of COVID-19 disease, currently raging across the world. The virus has now infected more than 43.89 million individuals and claimed over 1.16 million lives. The study titled, "Spike glycoprotein and host cell determinants of SARS-CoV-2 entry and cytopathic effects," is released on the preprint server bioRxiv* in October 2020.

27 Oct 2020

Important structures of SARS-CoV-2 PLpro protease

The pandemic of coronavirus disease 2019 (COVID-19) is changing the world like never before. This crisis is unlikely contained in the absence of effective therapeutics or vaccine.

27 Oct 2020

Study: Hydrogen sulfide produced by the body is key to generate normal breathing pattern

Effective regulation of breathing pattern is essential for many different mammalian processes such as energy production, metabolic regulation and even speech.

27 Oct 2020

New peptide derivatives that target the SARS-CoV-2 spike protein

In a new study published in the journal Cellular and Molecular Bioengineering, researchers report peptide derivatives, or peptidomimetics, based on the circle residues involved in the interaction of the spike protein and ACE2.

26 Oct 2020

Study suggests 5’UTR of SARS-CoV-2 might be of pangolin coronavirus origin

Findings from a new genomic sequencing study support the hypothesis that the pangolin was the intermediate host for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that enabled transmission of the virus to humans.

26 Oct 2020

Research uncovers SARS-CoV-2 viral traits critical for the virus in human airways

A new study published on the preprint server bioRxiv* in October 2020 reports the discovery of important viral genomic features that are crucial to its replication in the human airway cells, and its enhancing mutations which increase the rate of replication and determine its target cells.

26 Oct 2020

Small molecules block SARS-CoV-2 spike-ACE2 attachment

The search includes immunological agents, enzyme inhibitors, and soluble competitive inhibitors. Now, a new study published on the preprint server bioRxiv in October 2020 provides preliminary evidence that small molecules can inhibit viral entry by inhibiting spike-ACE2 attachment.

26 Oct 2020

Population-based COVID-19 prevalence surveys in Europe and Americas show risk of bias

A team of researchers from the Federal University of Health Sciences of Porto Alegre and the Federal University of Rio Grande do Sul performed a systematic review to assess these population-based COVID-19 prevalence surveys' reliability and biases qualitatively. Their study is published on the preprint server medRxiv.

26 Oct 2020

Researchers present COVID RdRp structure at 2.5A

In a recent bioRxiv* preprint publication, Christopher J. Russo et al. report the structure of favipiravir ribonucleoside triphosphate (favipiravir-RTP) in complex with the SARS-CoV-2 RNA-dependent RNA polymerase (RdRp) bound to a template: primer RNA duplex. They determine the structure by electron cryomicroscopy (cryoEM) to a resolution of 2.5 Å.

26 Oct 2020

NRP-1 receptor potentiates SARS-CoV-2 infectivity

The COVID-19 pandemic is still actively spreading in many parts of the world, causing redoubled efforts to develop antivirals and vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A recent study explores the role of a second type of cell surface receptor, called neuropilin, in the virus's entry into the host cell and its subsequent replication.

26 Oct 2020

Neuropilin-1: A new route of SARS-CoV-2 entry

A new study published in the reputed journal Science in October 2020 reports the potential therapeutic value of the second type of host transmembrane receptor, called neuropilins, which attach to the spike protein of SARS-CoV-2 and may enhance its infectivity.

25 Oct 2020

Enzyme News and Research

MD65 IgG-YTE shows powerful post-exposure neutralization of SARS-CoV-2

Simple diagnostic can help deliver urgent treatment to people at risk of dying from rapid blood loss

Antiviral inhibitor DDX42 shows broad activity against Chikungunya, HIV and SARS-CoV-2

Majority of people infected with mild-to-moderate COVID 19 mount robust antibody response

Researchers develop controllable system for mimicking biochemical reaction cascades in cells

Genome-wide CRISPR screens reveal resistance and sensitization mechanisms of drugs used in COVID-19

Scientists compare ACE2 interaction with SARS-CoV-2 across species

Scientists design 3D map to understand the behavior of novel coronavirus

Lianhuaqingwen capsule is effective for treating COVID-19 pneumonia

Furin cleavage site and D614G on SARS-CoV-2 spike evolved to balance infectivity, stability, cytopathicity

Important structures of SARS-CoV-2 PLpro protease

Study: Hydrogen sulfide produced by the body is key to generate normal breathing pattern

New peptide derivatives that target the SARS-CoV-2 spike protein

Study suggests 5’UTR of SARS-CoV-2 might be of pangolin coronavirus origin

Research uncovers SARS-CoV-2 viral traits critical for the virus in human airways

Small molecules block SARS-CoV-2 spike-ACE2 attachment

Population-based COVID-19 prevalence surveys in Europe and Americas show risk of bias

Researchers present COVID RdRp structure at 2.5A

NRP-1 receptor potentiates SARS-CoV-2 infectivity

Neuropilin-1: A new route of SARS-CoV-2 entry

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