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Study pinpoints potential transmission advantage of SARS-CoV-2 variant B.1.1.7

Researchers in the UK have shown that the increased transmissibility of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lineage B.1.1.7 that emerged in the UK during the coronavirus disease 2019 (COVID-19) pandemic does not appear to be the result of increased viral replication or immune escape.

25 Feb 2021

FDA approval provides targeted treatment option for patients with rare DMD mutation

Today, the U.S. Food and Drug Administration granted approval for Amondys 45 (casimersen) injection for the treatment of Duchenne muscular dystrophy (DMD) in patients who have a confirmed mutation of the DMD gene that is amenable to exon 45 skipping (Exons are pieces of DNA that provide information for making proteins in a person's genome).

25 Feb 2021

SARS-CoV-2 ORF7a mutation limits host immune suppression, finds study

Researchers have identified a high variability in the C-terminal end of ORF7a in SARS-CoV-2 sequences collected from around the globe. They noted that mutations result in a defective suppression of interferon and lowered replication rate.

25 Feb 2021

Canadian pilot study uses gene therapy to successfully treat patients with Fabry disease

Results of a world-first Canadian pilot study on patients treated with gene therapy for Fabry disease show that the treatment is working and safe.

25 Feb 2021

Study explores individual differences of SARS-CoV-2 infection in ACE2-expressing stem cells

The clinical phenotype of COVID-19, caused by SARS-CoV-2, is remarkable for its wide range of severity among individual patients. Genetic variations are known to mediate part of these differences. To examine these differences, researchers in a new study used human induced pluripotent stem cells (iPSCs) from different genetically diverse individuals. These cells are used to model genetic disease since they contain the donor’s genetic information. Researchers use a panel of iPSCs from over 500 individuals. The researchers preferred undifferentiated iPSCs to reduce the time required to differentiate them, especially since infection is not always reliable.

25 Feb 2021

SARS-CoV-2 transmission bottleneck is of the order of one to three virions

Now, a new study, posted to the bioRxiv preprint server by the same researchers, focussing on the Austrian region, found that SARS-CoV-2 transmission bottlenecks to be much tighter than previously thought.

24 Feb 2021

Lab study of South African SARS-CoV-2 variant and Moderna vaccine: reduced neutralization, but still protective

Researchers from the US recently compared antibody binding and viral neutralization against 2 SARS-CoV-2 variants that emerged in different parts of the world. The researchers used sera from spike mRNA vaccinated and naturally infected individuals against a circulating B.1 variant and the emerging B.1.351 variant. The study is published on the preprint server bioRxiv.

24 Feb 2021

Understanding Absolute Stoichiometry of Oligomeric Protein Complexes Using SEC-MALS

News-Med interviews .... about using SEC-MALS to characterize the native oligomeric state of Nap proteins and their complexes.

24 Feb 2021

UK and South African SARS-CoV-2 variants show higher binding affinity to host cell receptor

New research by a team of scientists at Stanford University School of Medicine in the U.S. found that both the UK and South African SARS-CoV-2 variants display tighter binding to the ACE2 receptor.

24 Feb 2021

Researchers explore how N501Y mutation in SARS-CoV-2 increases viral transmissibility

Researchers at Erasmus University Medical Center in The Netherlands have explored how and why new variants of SARS-CoV-2 have exhibited heightened infectivity.

24 Feb 2021

Study: Interbacterial toxins may contribute to bacterial genetic diversity

A toxin produced by bacteria as a defence mechanism causes mutations in target bacteria that could help them survive, according to a study published today in eLife.

23 Feb 2021

Two potent SARS-CoV-2 neutralizing antibodies effective against B.1.351 and B.1.1.7 variants

By analyzing the cryoEM structures of antibodies against the SARS-CoV-2 virus, researchers report that the neutralizing capabilities of two antibodies are not affected by new strains as these antibodies target regions of the virus away from the ACE2 binding regions.

23 Feb 2021

Key mutation sites in the SARS-CoV-2 spike protein modulate antibody and ACE2 affinity

A paper recently uploaded to the preprint server bioRxiv by researchers at Chapman University in California (Feb 22nd, 2021) utilized computational methods to screen severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mutants for affinity with the angiotensin-converting enzyme 2 (ACE2) receptor and monoclonal antibodies REG10987 and REG10933.

23 Feb 2021

SARS-CoV-2 mutations allow escape from clinical monoclonal antibodies

A new research paper recently uploaded to the preprint server bioRxiv by Jesse D. Bloom et al. (22nd Feb 2021) aims to map all of the currently circulating SARS-CoV-2 lineages with resistance towards LY-CoV555 and LY-CoV016, and document the specific mutations that confer resistance, ultimately suggesting that future monoclonal antibody cocktails should target a more diverse range of epitopes.

23 Feb 2021

Study identifies potential therapeutic target for treatment of Huntington's disease

Huntington's disease is caused by a mutation in the Huntingtin gene (HTT), which appears in adults and features motor, cognitive and psychiatric alterations.

23 Feb 2021

L452R mutation potentially favors adaptive evolution of SARS-CoV-2

A team of scientists from the United States recently investigated the mutational signatures in the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein.

23 Feb 2021

More diverse SARS-CoV-2 variants identified within infected children than in adults

A new study describes the identification of multiple circulating variants of SARS-CoV-2 during this early pandemic period from Asia and Europe. In addition, there were multiple local introductions of different variants, that resulted in multiple waves of transmission.

23 Feb 2021

HSE researchers discover genetic predisposition to COVID-19 severity

HSE University researchers have become the first in the world to discover genetic predisposition to severe COVID-19. The results of the study were published in the journal Frontiers in Immunology.

23 Feb 2021

Study findings help explain the diversity of cancers in different Li-Fraumeni patients

The most frequently mutated gene in human cancers is called p53. Patients with Li-Fraumeni syndrome, which is a rare disorder that increases the risk of developing several types of cancer, often have an increased risk to develop cancers at early ages if they inherit p53 mutations.

23 Feb 2021

Researchers investigate how CF patients respond to COVID-19

So far, based on clinical data, patients with cystic fibrosis (CF) don't appear to be especially susceptible to COVID-19, and when they do get infected, they don't seem to get sicker. But Ruobing (Ruby) Wang, MD, a physician-scientist in the Division of Pulmonary Medicine at Boston Children's Hospital, cares for patients with CF and thinks there is more to the story.

23 Feb 2021

Mutation News and Research

Study pinpoints potential transmission advantage of SARS-CoV-2 variant B.1.1.7

FDA approval provides targeted treatment option for patients with rare DMD mutation

SARS-CoV-2 ORF7a mutation limits host immune suppression, finds study

Canadian pilot study uses gene therapy to successfully treat patients with Fabry disease

Study explores individual differences of SARS-CoV-2 infection in ACE2-expressing stem cells

SARS-CoV-2 transmission bottleneck is of the order of one to three virions

Lab study of South African SARS-CoV-2 variant and Moderna vaccine: reduced neutralization, but still protective

Understanding Absolute Stoichiometry of Oligomeric Protein Complexes Using SEC-MALS

UK and South African SARS-CoV-2 variants show higher binding affinity to host cell receptor

Researchers explore how N501Y mutation in SARS-CoV-2 increases viral transmissibility

Study: Interbacterial toxins may contribute to bacterial genetic diversity

Two potent SARS-CoV-2 neutralizing antibodies effective against B.1.351 and B.1.1.7 variants

Key mutation sites in the SARS-CoV-2 spike protein modulate antibody and ACE2 affinity

SARS-CoV-2 mutations allow escape from clinical monoclonal antibodies

Study identifies potential therapeutic target for treatment of Huntington's disease

L452R mutation potentially favors adaptive evolution of SARS-CoV-2

More diverse SARS-CoV-2 variants identified within infected children than in adults

HSE researchers discover genetic predisposition to COVID-19 severity

Study findings help explain the diversity of cancers in different Li-Fraumeni patients

Researchers investigate how CF patients respond to COVID-19

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