Asp substitution or a single glucose on Asn. This work is included in "The HHV-6B U20 glycoprotein binds ULBP1, masking it from recognition by NKG2D and interfering with natural killer cell activation" by Weaver et al published in Frontiers in Immunology. (doi: 10.3389/fimmu.2024.1363156)]]>