AVM v1, released 02-OCT-22

A manually curated database of aerosol-transmitted virus mutations, human diseases, and drugs

Mutation detail:


Mutation site H655Y
Virus SARS-CoV-2
Mutation level Amino acid level
Gene/protein/region type S
Gene ID 43740568
Country USA
Mutation type nonsynonymous mutation
Genotype/subtype/clade -
Sample cell line
Variants Gamma/Omicron
Viral reference sequence NC_045512.2
Drug/antibody/vaccine -
Transmissibility promote
Transmission mechanism we provided evidence that some of these specific polymorphisms enhance viral growth, spike cleavage, and syncytia formation and therefore confer an advantage in viral transmission.
Pathogenicity -
Pathogenicity mechanism -
Immune escape mutation -
Immune escape mechanism -
RT-PCR primers probes -

Protein detail:


Protein name Spike glycoprotein
Uniprot protein ID P0DTC2
Protein length 1273 amino acids
Protein description Spike protein is one of the structural proteins of SARS-CoV-2. The monomeric protein consists of one large ectodomain, a single-pass transmembrane anchor, and a short intracellular tail at C-terminus. It encompasses 22 glycosylation sites. S protein cleaves into two subunits namely S1 and S2 following receptor recognition. Receptor Binding Domain (RBD) in S1 subunit plays a major role in ACE2 receptor binding.

Literature information:


Pubmed ID 35150638
Clinical information No
Disease -
Published year 2022
Journal Cell Host & Microbe
Title Mutations in SARS-CoV-2 variants of concern link to increased spike cleavage and virus transmission
Author Alba Escalera, Ana S Gonzalez-Reiche, Sadaf Aslam, Ignacio Mena, Manon Laporte
Evidence The S:655Y substitution was transmitted more efficiently than its ancestor S:655H in the hamster infection model and was able to outcompete S:655H in the hamster model and in a human primary airway system.