G_261.mp4

: Researchers track this residue to understand how the virus is processed by enzymes like Cathepsin L (CTSL) , which is critical for viral entry into human cells.

: It identifies a specific amino acid residue (Glycine at position 261) in the SARS-CoV-2 spike protein. g_261.mp4

The original "G.261" (often mislabeled as g_261) is a landmark ITU-T international standard for video telephony. : Researchers track this residue to understand how