HCoV-229E Spike/S Protein (APT69883, sf9, His)
Coronaviruses (CoVs) are enveloped, positive-sense, single-stranded RNA viruses with the largest genomes known among RNA viruses. The CoVs S-protein mediates receptor binding and fusion of the viral and host cell membranes. HCoV-229E is an alpha-coronaviruse that uses different host proteins as receptors.In HCoV-229E, its receptor binding domain (RBD) shows extensive sequence variation. HCoV-229E exploits trypsin, cathepsin L and TMPRSS2 to complete the fusion activation mediated by the S protein. HCoV-229E Spike/S Protein (APT69883, sf9, His) is the recombinant Virus-derived HCoV-229E Spike/S 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.
Biological Activity
Description
Coronaviruses (CoVs) are enveloped, positive-sense, single-stranded RNA viruses with the largest genomes known among RNA viruses. The CoVs S-protein mediates receptor binding and fusion of the viral and host cell membranes. HCoV-229E is an alpha-coronaviruse that uses different host proteins as receptors.In HCoV-229E, its receptor binding domain (RBD) shows extensive sequence variation. HCoV-229E exploits trypsin, cathepsin L and TMPRSS2 to complete the fusion activation mediated by the S protein[1][2]. HCoV-229E Spike/S Protein (APT69883, sf9, His) is the recombinant Virus-derived HCoV-229E Spike/S protein, expressed by Sf9 insect cells , with C-His labeled tag.
Background
Coronaviruses (CoVs) are enveloped, positive-sense, single-stranded RNA viruses with the largest genomes known among RNA viruses (~26–32 kb) belonging to the order Nidovirales1. Coronaviruses spike (S) glycoproteins mediate viral entry into host cells by binding to host receptors. To date, there are seven coronaviruses, namely the alphacoronaviruses HCoV-229E and HCoV-NL63, the betacoronaviruses HCoV-OC43, HCoV-HKU1, SARS-CoV, MERS-CoV and the emerging coronavirus (SARS-CoV-2). Moreover, fusion activation of HCoV-229E may be highly reliant on cleavage of the S2´ trigger loop (GSR685↓V686AG)[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
APT69883 (C16-W1115)
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Gene ID/
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Molecular Construction
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N-term
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HCoV-229E S (C16-W1115)
Accession # APT69883 -
His
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C-term
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Protein Length
Partial
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Synonyms
Human coronAvirus (HCoV-229E) Spike Protein (S1+S2 ECD, His)
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AA Sequence
CQTTNGTNTSHSVCNGCVGHSENVFAVESGGYIPSNFSFNNWFLLTNTSSVVDGVVRSFQPLLLNCLWSVSGSQFTTGFVYFNGTGRGACKGFYSNASSDVIRYNINFEENLRRGTILFKTSYGAVVFYCTNNTLVSGDAHIPSGTVLGNFYCFVNTTIGNETTSAFVGALPKTVREFVISRTGHFYINGYRYFSLGDVEAVNFNVTNAATIVCTVALASYADVLVNVSQTAIANIIYCNSVINRLRCDQLSFDVPDGFYSTSPIQPVELPMSIVSLPVYHKHTFIVLHVKFEHQRGPGKCYNCRPSVINITLANFNETKGPLCVDTSHFTTQFVDNVKLARWSASINTGNCPFSFGKVNNFVKFGSVCFSLKDIPGGCAMPIMANLVNHKSHNIGSLYVSWSDGDVITGVPKPVEGVSSFMNVTLNKCTKYNIYDVSGVGVIRISNDTFLNGITYTSTSGNLLGFKDVTNGTIYSITPCNPPDQLVVYQQAVVGAMLSENFTSYGFSNVVEMPKFFYASNGTYNCTDAVLTYSSFGVCADGSIIAVQPRNVSYDSVSAIVTANLSIPSNWTTSVQVEYLQITSKPIVVDCSTYVCNGNVRCVELLKQYTSACKTIEDALRNSAMLESADVSEMLTFDKKAFTLANVSSFGDYNLSSVIPSLPRSGSRVAGRSAIEDILFSKLVTSGLGTVDADYKKCTKGLSIADLACAQYYNGIMVLPGVADAERMAMYTGSLIGGIALGGLTSAASIPFSLAIQSRLNYVALQTDVLQENQKILAASFNKAMTNIVDAFTGVNDAITQTSQALQTVATALNKIQDVVNQQGNSLNHLTSQLRQNFQAISSSIQAIYDRLDIIQADQQVDRLITGRLAALNVFVSHTLTKYTEVRASRQLAQQKVNECVKSQSKRYGFCGNGTHIFSLVNAAPEGLVFLHTVLLPTQYKDVEAWSGLCVDGINGYVLRQPNLALYKEGNYYRITSRIMFEPRIPTIADFVQIENCNVTFVNISRSELQTIVPEYIDVNKTLQELSYKLPNYTVPDLVVEQYNQTILNLTSEISTLENKSAELNYTVQKLQTLIDNINSTLVDLKWLNRVETYIKWPWW
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Predicted Molecular Mass
122.1 kDa
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Purity
≥ 85%, 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)