has part has part has_part variant of is characteristic AA variant of has mutated from has amino acid position glycine valine SARS-CoV-2 clade V virus NS3-G251V G251V in SARS-CoV2 NS3 protein 251 https://www.gisaid.org/references/statements-clarifications/clade-and-lineage-nomenclature-aids-in-genomic-epidemiology-of-active-hcov-19-viruses/ NS3-G251 Oliver He ORF3a:G251V an aa-changing SNP variant that occurs at G26144T at ORF3a protein of SARS-CoV-2 virus. It is a signature variation in SARS-CoV clade V. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7387429/ ORF3a-G251V AA variant in SARS-CoV-2 NS3 protein ORF3a protein (SARS-CoV-2)