SARS-CoV S2 Protein (sf9, His)
SARS-CoV spike glycoprotein 2 (S2) is a subunit of SARS-CoV Spike glycoprotein, among with S1 and S2'. S2 (668-1255) mediates fusion of the virion and cellular membranes by acting as a class I viral fusion protein, during endocytosis, S2 is cleaved into S2' (798-1255). Internalization into host cell endosomes induces S glycoprotein conformational changes, potentially unmasking the fusion peptide of S2 through cathepsin CTSL proteolysis. SARS-CoV S2 Protein (sf9, His) is the recombinant Virus-derived SARS-CoV S2 protein, expressed by Sf9 insect cells , with C-His labeled tag.
- Species: Virus
- Source: Sf9 insect cells
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Storage:Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
SARS-CoV spike glycoprotein 2 (S2) is a subunit of SARS-CoV Spike glycoprotein, among with S1 and S2'. S2 (668-1255) mediates fusion of the virion and cellular membranes by acting as a class I viral fusion protein, during endocytosis, S2 is cleaved into S2' (798-1255). Internalization into host cell endosomes induces S glycoprotein conformational changes, potentially unmasking the fusion peptide of S2 through cathepsin CTSL proteolysis. SARS-CoV S2 Protein (sf9, His) is the recombinant Virus-derived SARS-CoV S2 protein, expressed by Sf9 insect cells , with C-His labeled tag.
Background
SARS-CoV spike glycoprotein 2 (S2) is a subunit of SARS-CoV Spike glycoprotein, among with S1 and S2'. S1 (14-667) can attaches the virion to the cell membrane by interacting with host receptor, initiating the infection. S2 (668-1255) mediates fusion of the virion and cellular membranes by acting as a class I viral fusion protein, during endocytosis, S2 is cleaved into S2' (798-1255).
S protein orchestrates viral entry by attaching the virion to the cell membrane through interactions with human ACE2 and CLEC4M/DC-SIGNR receptors. Following attachment, internalization into host cell endosomes induces S glycoprotein conformational changes, potentially unmasking the fusion peptide of S2 through cathepsin CTSL proteolysis[1][2].
Technical Parameters
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Species Virus
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Source Sf9 insect cells
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Tag C-His
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Accession
NP_828851.1 (S668-P1195)
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Gene ID1489668 [NCBI]
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Molecular Construction
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N-term
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SARS-CoV S2 (S668-P1195)
Accession # NP_828851.1 -
His
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C-term
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Protein Length
Partial Extracellular Domain
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Synonyms
Spike glycoprotein; S glycoprotein; Peplomer protein; S
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AA Sequence
STSQKSIVAYTMSLGADSSIAYSNNTIAIPTNFSISITTEVMPVSMAKTSVDCNMYICGDSTECANLLLQYGSFCTQLNRALSGIAAEQDRNTREVFAQVKQMYKTPTLKYFGGFNFSQILPDPLKPTKRSFIEDLLFNKVTLADAGFMKQYGECLGDINARDLICAQKFNGLTVLPPLLTDDMIAAYTAALVSGTATAGWTFGAGAALQIPFAMQMAYRFNGIGVTQNVLYENQKQIANQFNKAISQIQESLTTTSTALGKLQDVVNQNAQALNTLVKQLSSNFGAISSVLNDILSRLDKVEAEVQIDRLITGRLQSLQTYVTQQLIRAAEIRASANLAATKMSECVLGQSKRVDFCGKGYHLMSFPQAAPHGVVFLHVTYVPSQERNFTTAPAICHEGKAYFPREGVFVFNGTSWFITQRNFFSPQIITTDNTFVSGNCDVVIGIINNTVYDPLQPELDSFKEELDKYFKNHTSPDVDLGDISGINASVVNIQKEIDRLNEVAKNLNESLIDLQELGKYEQYIKWP
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Predicted Molecular Mass
59.7 kDa
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Glycosylation
Yes
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Solution
<1 EU/μg, determined by LAL method.
Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Shipping with dry ice.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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