Cysteine News and Research

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Identification of novel nanobodies to specifically target SARS-CoV-2 replication protein

Researchers have recently identified two nanobodies that show specific binding against a SARS-CoV-2 replication protein.

1 Nov 2021

The ability of natural flavonoids to inhibit SARS-CoV-2

A recent systematic review discusses naturally occurring flavonoids as a promising antiviral alternative against SARS-CoV-2.

31 Oct 2021

Immune evasion by SARS-CoV-2 facilitated by a mutational hotspot in the NTD

Researchers discuss mutations in the NTD of the spike protein, which contains an antigenic “supersite” and is the target for nAbs.

24 Oct 2021

Chemical substance may specifically inhibit both SARS-CoV-2 proteases and human protease

Researchers tested analogs of disulfiram on SARS-CoV-2 Mpro and PLpro to find more efficient and effective inhibitors that take advantage of disulfiram’s mechanism of binding to the cysteine residue.

22 Oct 2021

Mutation of cysteine residues in NRP1 reduces SARS-CoV-2 spike protein entry into cells

Researchers have been investigating altered protein conformations in variants of concern to provide further insight for future therapies against COVID-19.

14 Oct 2021

The role of inhibiting palmitoylation of the SARS-CoV-2 spike protein on viral infectivity

It is demonstrated that palmitoylation of the first five cysteine residues of the C-terminal domain of the SARS-CoV-2 spike protein facilitates cell entry and the formation of syncytia.

11 Oct 2021

Role of S-acylation in SARS-CoV-2 infectivity

A new study published in Developmental Cell investigates S-acylation of the SARS-CoV-2 S protein.

10 Oct 2021

Cysteamine inhibits SARS-CoV-2 variants of concern in vitro

Researchers in the United States have shown that a compound currently used to treat cystinosis exhibits broad antiviral activity against variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

5 Oct 2021

New analysis reveals distinct differences between molecular profiles of 3D and 2D cultured cells

Oncotarget published "Comparative microsomal proteomics of a model lung cancer cell line NCI-H23 reveals distinct differences between molecular profiles of 3D and 2D cultured cells" which reported that to ascertain phenotypical differences between these two distinct culture conditions, these authors carried out a comparative proteomic analysis of a membrane fraction obtained from 3D- and 2D-cultured NSCLC model cell line NCI-H23.

29 Sep 2021

Caspase-11 identified as regulator of inflammatory pathology in SARS-CoV-2 infections

New findings identify CASP4/11 as detrimental to inflammation and coagulopathy associated with SARS-CoV-2 infection.

28 Sep 2021

In-mouth production of volatile sulfur compounds causes children to dislike Brassica vegetables

Many children, as well as adults, dislike Brassica vegetables, such as broccoli, cauliflower, cabbage and Brussels sprouts.

22 Sep 2021

Scientists develop a novel and potent SARS-CoV-2 RBD-homodimer vaccine

A recent report published in the journal Cell Discovery has described the immunogenicity and protective efficacy of a novel coronavirus disease 2019 (COVID-19) subunit vaccine candidate. The vaccine induces robust immune responses in rodents and non-human primates and protects the animals against severe disease.

12 Sep 2021

Does SARS-CoV-2 affect male fertility?

A recently published review describes the state of current knowledge regarding the impact of SARS-CoV-2 on the male reproductive system.

23 Aug 2021

Flavonoid-based inhibitors targeting SARS-CoV 3CL protease for the treatment of SARS-CoV-2 infection

A new study has explored a series of potential flavonoid inhibitors targeting 3CL protease of SARS-CoV.

9 Aug 2021

Pfizer moves towards an oral anti-COVID-19 therapy

Researchers in the United States have described a novel antiviral agent against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) currently being evaluated in clinical trials as a treatment for coronavirus disease 2019 (COVID-19).

2 Aug 2021

B.1.427/B.1.429 variant of SARS-CoV-2 evades neutralization via disulfide bond rearrangement

A new paper discusses an intriguing new mechanism of immune evasion traceable to specific mutations in the B.1.427/B.1.429 variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

7 Jul 2021

Plant compounds inhibit Mpro of SARS-CoV-2 and HCoV-229E in vitro

A group of researchers recently discussed their findings that a group of plant flavonols and dihydroflavonols exhibit antiviral efficacy against both SARS-CoV-2 and HCoV-229E.

6 Jul 2021

Thiol-based mucolytics show potent allosteric inhibition of SARS-CoV-2-ACE2 binding via disulfide reduction

A compelling report, recently released on the bioRxiv* preprint server, describes unexpectedly powerful inhibition of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by thiol-based mucolytic compounds P2119 and P2165, by preventing the virus spike from binding to its host cell receptor, the angiotensin-converting enzyme 2 (ACE2).

5 Jul 2021

Salivary markers of oxidative stress during severe COVID-19

An interesting study from researchers at the University of Sharjah, Sharjah, United Arab Emirates, presents evidence that an elevated level of expression of oxidant molecules may be correlated with severe infection and lung injury.

2 Jul 2021

The use of flavonoids as antiviral agents against SARS-CoV-2

Researchers in Iran have undertaken a comprehensive review of flavonoids and their antiviral potential against SARS-CoV-2.