Recombinant protein of the receptor binding domain (RBD), Mutant (Y453F) of SARS-CoV-2 (COVID-2019) Spike S1 from Wuhan pneumonia virus with N-terminal His-Tag and C-terminal GFP. The Y453F mutation (also called Danish Mink mutation / Cluster 5 mutation (ΔFVI-spike)) was first discovered in Denmark and is located in a conservative region of the RBD directly involved in ACE2 binding. Thereby this mutation could have implications for viral fitness, transmissibility and antigenicity.
Sequence without tags (AA 319-541): RVQPTESIVRFPNITNLCPFGEVFNATRFASVYAWNRKRISNCVADYSVLYNSASFSTF KCYGVSPTKLNDLCFTNVYADSFVIRGDEVRQIAPGQTGKIADYNYKLPDDFTGCVIAWN SNNLDSKVGGNYNYLFRLFRKSNLKPFERDISTEIYQAGSTPCNGVEGFNCYFPLQSYGF QPTNGVGYQPYRVVVLSFELLHAPATVCGPKKSTNLVKNKCVNF
Expression Host: human, HEK293
Formulation: PBS, pH 7,4
Format: Liquid, stored and shipped at -80°C
Purity: > 85% as determined by SDS-PAGE
The spike (S) glycoprotein of coronaviruses is essential for binding of the virus to the host cell at the beginning of the infection process. The target protein is also a major immunogen and a possible target for entry inhibitors. The SARS-CoV-2 spike (S) protein is a large type I transmembrane protein composed of two subunits, S1 and S2. The S1 subunit contains a receptor-binding domain (RBD) responsible for binding to the host cell receptor angiotensin-converting enzyme 2 (ACE2). Several mutants of the spike protein are known. A mutation first discovered in Denmark, called “Cluster 5”, also known as the ΔFVI-spike, is related to four genetic changes. This mutation (Y453F) is located in a conservative region of the RBD directly involved in ACE2 binding and thereby could have implications for viral fitness, transmissibility, and antigenicity.