Functional study methods:

WAVE DNA fragment analysis to screen for variant

VWF collagen binding activity

cone and plate analysis (CPA)

Microfluidics

static VWF-platelet receptor binding assay

protein expression in cultured HEK293 cell clones

Near and far-UV circular dichroism spectra

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Trevor Bedford. (2022, January 28). Omicron viruses can be divided into two major groups, referred to as PANGO lineages BA.1 and BA.2 or @nextstrain clades 21K and 21L. The vast majority of globally sequenced Omicron have been 21K (~630k) compared a small minority of 21L (~18k), but 21L is gaining ground. 1/15 [Tweet]. @trvrb. https://twitter.com/trvrb/status/1487105396879679488

Carreño, Juan Manuel, Hala Alshammary, Johnstone Tcheou, Gagandeep Singh, Ariel Raskin, Hisaaki Kawabata, Levy Sominsky, et al. ‘Activity of Convalescent and Vaccine Serum against SARS-CoV-2 Omicron’. Nature, 31 December 2021, 1–8. https://doi.org/10.1038/s41586-022-04399-5.

N, P, & R. (2021, November 27). Does omicron pose a risk to the vaccinated? Too early to tell, epidemiologist says. NPR. https://www.npr.org/2021/11/27/1059539509/too-early-to-tell-whether-omicron-poses-a-threat-to-vaccinated-epidemiologist-sa

Keerthivasan, S., Şenbabaoğlu, Y., Martinez-Martin, N., Husain, B., Verschueren, E., Wong, A., Yang, Y. A., Sun, Y., Pham, V., Hinkle, T., Oei, Y., Madireddi, S., Corpuz, R., Tam, L., Carlisle, S., Roose-Girma, M., Modrusan, Z., Ye, Z., Koerber, J. T., & Turley, S. J. (2021). Homeostatic functions of monocytes and interstitial lung macrophages are regulated via collagen domain-binding receptor LAIR1. Immunity, 54(7), 1511-1526.e8. https://doi.org/10.1016/j.immuni.2021.06.012

ReconfigBehSci. (2021, May 1). RT @GuptaR_lab: Given the dire situation in India and questions regarding the new variant B.1.617, the so called ‘Double Mutant’ we are sha… [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1388915829383720961

Starr, T. N., Greaney, A. J., Hilton, S. K., Crawford, K. H., Navarro, M. J., Bowen, J. E., Tortorici, M. A., Walls, A. C., Veesler, D., & Bloom, J. D. (2020). Deep mutational scanning of SARS-CoV-2 receptor binding domain reveals constraints on folding and ACE2 binding [Preprint]. Microbiology. https://doi.org/10.1101/2020.06.17.157982

Andersen, K.G., Rambaut, A., Lipkin, W.I. et al. The proximal origin of SARS-CoV-2. Nat Med 26, 450–452 (2020). https://doi.org/10.1038/s41591-020-0820-9