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Detection and characterization of the SARS-CoV-2 lineage B.1.526 in New York.

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TLDR
The most common sets of spike mutations in this lineage are L5F, T95I, D253G, E484K or S477N, D614G, and A701V.
Abstract
Wide-scale SARS-CoV-2 genome sequencing is critical to tracking viral evolution during the ongoing pandemic. We develop the software tool, Variant Database (VDB), for quickly examining the changing landscape of spike mutations. Using VDB, we detect an emerging lineage of SARS-CoV-2 in the New York region that shares mutations with previously reported variants. The most common sets of spike mutations in this lineage (now designated as B.1.526) are L5F, T95I, D253G, E484K or S477N, D614G, and A701V. This lineage was first sequenced in late November 2020. Phylodynamic inference confirmed the rapid growth of the B.1.526 lineage. In concert with other variants, like B.1.1.7, the rise of B.1.526 appears to have extended the duration of the second wave of COVID-19 cases in NYC in early 2021. Pseudovirus neutralization experiments demonstrated that B.1.526 spike mutations adversely affect the neutralization titer of convalescent and vaccinee plasma, supporting the public health relevance of this lineage.

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Citations
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Journal ArticleDOI

High genetic barrier to SARS-CoV-2 polyclonal neutralizing antibody escape.

TL;DR: In this article, the number and variability of the neutralizing epitopes targeted by polyclonal antibodies in SARS-CoV-2 convalescent and vaccinated individuals are shown to be key determinants of neutralization breadth and the genetic barrier to viral escape.
Journal ArticleDOI

Emergence and expansion of SARS-CoV-2 B.1.526 after identification in New York.

TL;DR: The emergence of the variant lineage B.1.526 (also known as the Iota variant5), which contains E484K, and its rise to dominance in New York City in early 2021 was reported in this article.
Journal ArticleDOI

Exploring the Binding Mechanism of PF-07321332 SARS-CoV-2 Protease Inhibitor through Molecular Dynamics and Binding Free Energy Simulations.

TL;DR: In this article, the binding mechanism of PF-07321332, α-ketoamide, lopinavir, and ritonavir to the coronavirus 3-chymotrypsin-like-protease (3CLpro) was demonstrated by means of docking and molecular dynamic simulations.
Journal ArticleDOI

Understanding the Secret of SARS-CoV-2 Variants of Concern/Interest and Immune Escape.

TL;DR: In this paper, the authors provided a systematic and comprehensive understanding of the secret of SARS-CoV-2 variants of interest/concern and immune escape, and evaluated the neutralizing capability of several antibodies on epidemic variants.
References
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Journal ArticleDOI

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