Intratracheal administration of a cocktail of trimerized nanobodies suppresses weight loss and prolongs survival in mice infected with SARS-CoV-2 – Communications Medicine
Production and trimerization of nanobodies Nanobodies targeting SARS-CoV-2 spike protein were selected as previously described12.13. N-terminal labeled tandem homotrimer PelB (MKYLLPTAAAGLLLLAAQPAMA) genes of the two-connected nanobody (GGGGS)4 linkers and 6 x C-terminal His-tag were synthesized and subcloned into the pMES4 vector. The exact amino acid sequences are as follows: TP17, MKYLLPTAAAGLLLLAAQPAMAQVQLQESGGGLVQAGGSLRLSCAASGRTSSVYNMAWFRQTPGKEREFVAAITGNGGTTLYADSVKGRLTISRGNAKNTVSLQMNVLKPDDTAVYYCAAGGWGKERNYAYWGQGTQVTVSSGGGGSGGGGSGGGGSGGGGSQVQLQESGGGLVQAGGSLRLSCAASGRTSSVYNMAWFRQTPGKEREFVAAITGNGGTTLYADSVKGRLTISRGNAKNTVSLQMNVLKPDDTAVYYCAAGGWGKERNYAYWGQGTQVTVSSGGGGSGGGGSGGGGSGGGGSQVQLQESGGGLVQAGGSLRLSCAASGRTSSVYNMAWFRQTPGKEREFVAAITGNGGTTLYADSVKGRLTISRGNAKNTVSLQMNVLKPDDTAVYYCAAGGWGKERNYAYWGQGTQVTVSSHHHHHH; TP86, MKYLLPTAAAGLLLLAAQPAMAMAQVQLQESGGGLVQAGGSLRLSCVASGRTFSSLNIVWFRQAPGKERKFVAAINDRNTAYAESVKGRFTISRDNAKNTVHLQMNSLKPEDTAVYYCHSADVNGGMDYWGKGTQVTVSSGGGGSGGGGSGGGGSGGGGSQVQLQESGGGLVQAGGSLRLSCVASGRTFSSLNIVWFRQAPGKERKFVAAINDRNTAYAESVKGRFTISRDNAKNTVHLQMNSLKPEDTAVYYCHSADVNGGMDYWGKGTQVTVSSGGGGSGGGGSGGGGSGGGGSQVQLQESGGGLVQAGGSLRLSCVASGRTFSSLNIVWFRQAPGKERKFVAAINDRNTAYAESVKGRFTISRDNAKNTVHLQMNSLKPEDTAVYYCHSADVNGGMDYWGKGTQVTVSSHHHHHH. These expression …