Products & Information Collection of New variant SARS-COV-2 (2019nCOV) -The double mutant variant B.1.617 lineage, S:E484Q+L452R (India)

SOCAIL MEDIA

The world is in midst of the COVID-19 pandemic. Recently A new “double mutant” variant of the coronavirus has been detected from samples collected in India. The two mutations (E484Q and L452R mutations) come together in the same virus, may be more infectious or less affected by vaccines.1

GeneMedi pseudotype virus (pseudovirus) of SARS-COV-2 (2019nCOV) double mutant variant B.1.617 lineage, S:E484Q+L452R (India)

Taking responsibility to help accelerate the COVID-19 vaccine and therapeutic antibody discovery and development, GeneMedi had developed the pseudotype virus (pseudovirus) of SARS-COV-2 (2019nCOV) double mutant variant B.1.617 lineage, S:E484Q+L452R (India), which will meet the evaluation of the efficacy of COVID19 vaccines and therapeutic antibodies.

SARS-COV-2 (2019nCOV) -double mutant variant B.1.617 lineage, S:E484Q+L452R (India) of Spike protein & ACE2 competition binding assay for efficacy evaluation of COVID-19 vaccines and therapeutic antibodies

GeneMedi codon-optimized spike mammalian expression vector for SARS-COV-2 (2019nCOV) -double mutant variant B.1.617 lineage, S:E484Q+L452R (India)

GeneMedi designed a mammalian expression codon-optimized spike mutation/deletion variant vector for COVID-19 SARS-COV-2 (2019nCOV) double mutant variant B.1.617 lineage, S:E484Q+L452R (India).

Mutations of Spike protein in SARS-COV-2 (2019nCOV) double mutant variant B.1.617 lineage, S:E484Q+L452R (India)

Two of the spike mutations are at key residues in the RBD (E484Q and L452R), two are in the N-terminal domain (T95I and E154K).2.

Spike Mutation in SARS-COV-2 (2019nCOV) double mutant variant B.1.617 lineage, S:E484Q+L452R (India)Spike-S1 Subunit
N Terminal
T95I 
E154KImportant residues mutation
Spike-RBDL452RImportant residues mutation
E484QImportant residues mutation
Spike-S1 SubunitD614GA popular mutation in different new SARS-CoV-2 lineage
Spike-S2 SubunitP681R 
Figure. Amino acid changes in the spike region of the double mutant variant B.1.617 lineage, S:E484Q+L452R (India) genomes2

Reference

1.Soutik Biswas. ‘Double mutant’: What are the risks of India’s new Covid-19 variant. https://www.bbc.com/news/world-asia-india-56517495.
2.INSACOG. “Genome Sequencing by INSACOG shows variants of concern and a Novel variant in India ” INSACOG, 2021. https://pib.gov.in/PressReleaseIframePage.aspx?PRID=1707177.