Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/8Y1D 8Y1D: 2up-TM conformation of HKU1-B S protein after incubation of the receptor Spike glycoproteinTransmembrane protease serine 22-acetamido-2-deoxy-beta-D-glucopyranosealpha-D-mannopyranose