Amino Acid News and Research

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Amino Acid is one of several molecules that join together to form proteins. There are 20 common amino acids found in proteins.

Immunity developed by SARS-CoV-2 infection can protect against E484K variants, suggests study

A team of scientists from Japan has recently investigated the neutralizing potency of convalescent sera against currently circulating SARS-CoV-2 variants with multiple spike mutations.

13 May 2021

Designer SARS-CoV-2 RBD vaccine produces dramatically improved antibody response in preclinical trials

The importance of computational modeling in the prediction of the course of the ongoing COVID-19 pandemic, as well as evaluating multiple potential drug leads, has never been more clear. Now, a new study describes a set of designer vaccine antigens that may improve vaccine stability as well as enhance the neutralizing antibody response.

13 May 2021

CNIO researchers unravel why motor neurons die in ALS patients

In Amyotrophic Lateral Sclerosis (ALS), the progressive death of neurons that control body movement leads to paralysis of muscles in the limbs and gradually of the whole body, which ultimately makes it impossible to breathe. ALS is currently untreatable, and its cause is unknown.

12 May 2021

Researchers develop novel targeted therapy for triple-negative breast cancer

Researchers from Hong Kong Baptist University (HKBU), in collaboration with Cornell University, have developed a novel targeted therapy for triple-negative breast cancer (TNBC) that uses a specially-designed nano-carrier to deliver the Chinese medicine compound gambogic acid (GA).

12 May 2021

Spread of minority SARS-CoV-2 variants in New York City

Viruses mutate to survive. But not all mutations are beneficial to the virus. On the other hand, some mutations such as N501Y and E484K on the spike protein propelled specific severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants to ‘variant of concern’ status, due to their ability to increase transmission and weaken the response of neutralizing antibodies.

12 May 2021

Lab reports 1st instance of SARS-CoV-2 variants affecting antigen test performance

Researchers from the US recently determined the sensitivity of the Quidel Sofia SARS Antigen FIA test (Sofia 2). They found a high viral load specimen that tested negative repeatedly while using this antigen test. The study is published on the preprint server, medRxiv.

10 May 2021

Researchers improve method to inhibit viruses that cause childhood respiratory infections

By engineering a short chunk of protein, or peptide, that can prevent the attachment of human parainfluenza viruses to cells, researchers have improved a method in rodent models intended to help keep children healthy.

10 May 2021

Immunosuppression in COVID-19 promotes emergence of multiple immune escape mutants

An interesting new study describes the emergence of several such variants from a chronically immunosuppressed COVID-19 patient, who remained infected for over 170 days before clearing the virus.

7 May 2021

The ancestor of SARS-CoV-2’s Wuhan strain was circulating in late October 2019

The SARS-CoV-2 was first reported in a case from Wuhan, China, in December 2021, and subsequently became the cause of the COVID-19 pandemic that is ravaging the world today. A new study in the journal Molecular Biology and Evolution tracks its variants all over the world since the onset of the pandemic.

7 May 2021

Indian SARS-CoV-2 variant shows enhanced host cell entry and immune evasion

A study conducted by researchers in Germany has found that the B.1.617 variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has emerged in India entered certain types of lung and intestine cells with slightly increased efficiency compared with the original wild-type strain.

6 May 2021

Scientists discover fundamental regulation mechanism of proteins

Proteins perform a vast array of functions in the cell of every living organism with critical roles in almost every biological process.

5 May 2021

Nanoparticle (SpFN) vaccine candidate elicits multifactorial cellular immune responses against SARS-CoV-2 in vivo

Researchers have developed a promising new anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)vaccine candidate that utilizes nanotechnology and shows robust, long-lived immunity in mouse models.

5 May 2021

PET imaging can enable accurate diagnosis of recurring brain metastases

For patients with brain metastases, amino acid positron emission tomography (PET) can provide valuable information about the effectiveness of state-of-the-art treatments.

5 May 2021

SARS-CoV-2 spike mutations during transmission among humans and to animals

A fascinating new study discusses the 40 mutations that are seen on the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein and their potential effects on viral biology.

3 May 2021

Class I HLA alleles shape CD8+ T cell repertoire in SARS-CoV-2 infection

An interesting new study discusses how adaptive cellular immunity against the SARS-CoV-2 is dependent on differences in HLA-encoding genes between patients.

3 May 2021

A new SARS-CoV-2 variant (HMN.19B) has been identified in France

New research published in the Centers for Disease Control and Prevention’s journal Emerging Infectious Diseases has confirmed the emergence of a new SARS-CoV-2 variant called HMN.19B from the viral clade 19B in France. The 19B viral clade — which includes the D614G variant — was prevalent in late 2019 but had since been rarely observed since early 2020 because of newer viral clades.

3 May 2021

Researchers characterize a large set of therapeutic antibodies against SARS-CoV-2 variants

A team of scientists from A-Alpha Bio., USA, has recently conducted a large-scale screening of 33 therapeutic antibodies to examine their binding affinity to a number of SARS-CoV-2 variants. The team analyzed the impact of potential mutations in the spike RBD on antibody efficacy.

29 Apr 2021

New insights into how South African SARS-CoV-2 variant sacrifices tight binding for antibody evasion

The highly infectious SARS-CoV-2 variant that recently emerged in South Africa, known as B.1.351, has scientists wondering how existing COVID-19 vaccines and therapies can be improved to ensure strong protection.

29 Apr 2021

Researchers try to simplify gene nomenclature across various organisms

Constantina Theofanopoulou wanted to study oxytocin. Her graduate work had focused on how the hormone influences human speech development, and now she was preparing to use those findings to investigate how songbirds learn to sing. The problem was that birds do not have oxytocin. Or so she was told.

29 Apr 2021

COVID-19 donor antibodies show broad cross-reactivity against SARS-CoV-2 variants and related viruses

A new study reports on a set of antibodies from COVID-19 donor serum, which seems to be cross-reactive across multiple Sarbecoviruses, including the very similar SARS-CoV-2, SARS-CoV and Middle East Respiratory Syndrome (MERS)-CoV.

28 Apr 2021

Amino Acid News and Research

Further Reading

Immunity developed by SARS-CoV-2 infection can protect against E484K variants, suggests study

Designer SARS-CoV-2 RBD vaccine produces dramatically improved antibody response in preclinical trials

CNIO researchers unravel why motor neurons die in ALS patients

Researchers develop novel targeted therapy for triple-negative breast cancer

Spread of minority SARS-CoV-2 variants in New York City

Lab reports 1st instance of SARS-CoV-2 variants affecting antigen test performance

Researchers improve method to inhibit viruses that cause childhood respiratory infections

Immunosuppression in COVID-19 promotes emergence of multiple immune escape mutants

The ancestor of SARS-CoV-2’s Wuhan strain was circulating in late October 2019

Indian SARS-CoV-2 variant shows enhanced host cell entry and immune evasion

Scientists discover fundamental regulation mechanism of proteins

Nanoparticle (SpFN) vaccine candidate elicits multifactorial cellular immune responses against SARS-CoV-2 in vivo

PET imaging can enable accurate diagnosis of recurring brain metastases

SARS-CoV-2 spike mutations during transmission among humans and to animals

Class I HLA alleles shape CD8+ T cell repertoire in SARS-CoV-2 infection

A new SARS-CoV-2 variant (HMN.19B) has been identified in France

Researchers characterize a large set of therapeutic antibodies against SARS-CoV-2 variants

New insights into how South African SARS-CoV-2 variant sacrifices tight binding for antibody evasion

Researchers try to simplify gene nomenclature across various organisms

COVID-19 donor antibodies show broad cross-reactivity against SARS-CoV-2 variants and related viruses

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