SARS Coronavirus 2 XE

**Semantic type:** Virus

**Definition:** A variant lineage of SARS coronavirus 2 where the following variations in the spike glycoprotein sequence have been identified: deletions of the amino acids at positions 25/27 and amino acid substitutions T19I, L24S, G142D, V213G, G339D, S371F, S373P, S375F, T376A, D405N, R408S, K417N, N440K, S477N, T478K, E484A, Q493R, Q498R, N501Y, Y505H, D614G, H655Y, N679K, P681H, N764K, D796Y, Q954H and N969K.

**Synonyms:** - Omicron - Recombinant Lineage of BA.1 and BA.2 - Recombinant Variant BA.1/BA.2 - SARS Coronavirus 2 Variant Lineage XE - SARS-CoV-2 XE - SARS2 XE - XE