Introduction: In addition, some of the notable substitutions in NTD are R246I (in B.1.351), W152C (in B.1.429), L18F (in B.1.351 and P.1), T19R (in B.1.17 and B.1.617) and G142D (in B.1.617 lineages), all of which are associated with immune-escape.
Longitudinal analysis of SARS-CoV-2 spike and RNA-dependent RNA polymerase protein sequences reveals the emergence and geographic distribution of diverse mutations.
PMID: 34801754
2022
Infection, genetics and evolution
Result: 5D) share the same set of mutations on the spike protein (S13I, W152C, L452R), and have similar effect on transmissibility and antibody evasion.
Result: S13I and L452R were detected separately in previous sequences, but W152C was not.
Fig
Figure: L18F, E484K, N501Y, D614G, H655Y, and V1176F are associated with the Gamma variant of concern, and S13I, W152C, L452R are associated with the Epsilon variant of concern.
Haplotype distribution of SARS-CoV-2 variants in low and high vaccination rate countries during ongoing global COVID-19 pandemic in early 2021.
PMID: 34848355
2022
Infection, genetics and evolution
Table: W152C
Efficacy of mRNA, adenoviral vector, and perfusion protein COVID-19 vaccines.
Estimation of Secondary Household Attack Rates for Emergent Spike L452R Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Variants Detected by Genomic Surveillance at a Community-Based Testing Site in San Francisco.
Abstract: Certain viral lineages bearing spike mutations, defined in part by L452R, S13I, and W152C, comprised 54.4% of the total sequences from January, compared to 15.7% in November.
Misidentification of the SARS-CoV-2 Mu variant using commercial mutation screening assays.
Introduction: Any other mutation combination or the absence of any mutations required the use of a second rRT-PCR mutation assay, Allplex SARS-CoV-2 Variants II Assay (Seegene, Korea), which screens for the mutations K417N, K417T, L452R, and W152C.
Introduction: Following the scheme described above, in August 2021, we detected three strains that presented K417N, N501Y, and E484K mutations but did not present delH69/V70, W152C, K417T, L452R, or V1176F mutations.
Comparative Analysis of Five Multiplex RT-PCR Assays in the Screening of SARS-CoV-2 Variants.
Method: Five RUO multiplex real-time qualitative RT-PCR assays targeting some of the most widespread mutations in the spike protein (i.e., L452R, W152C, K417T, K417N, E484Q, E484K, N501Y) were used on positive specimens for a rapid and presumptive detection of the SARS-CoV-2 variants (Figure 1 and Table 1).
Method: The SARS-CoV-2 Variants II Assay is a multiplex RT-PCR assay for the detection of spike protein mutations L452R, W152C, K417T and K417N, and it is validated for lower and upper respiratory tract specimens.
Serum Neutralizing Activity of mRNA-1273 against SARS-CoV-2 Variants.