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Your Position: Home > Protein > Spike protein > SPN-B52H7

Bat coronavirus HKU3 (BtCoV) (SARS-like coronavirus HKU3) Spike Trimer Protein (R654A, KV955-956PP), His Tag (MALS verified)

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  • Synonym
    Spike,S protein,Spike glycoprotein,S glycoprotein
  • Source
    Bat coronavirus HKU3 (BtCoV) (SARS-like coronavirus HKU3) Spike Trimer, His Tag (SPN-B52H7) is expressed from human 293 cells (HEK293) with T4 fibritin trimerization motif and a polyhistidine tag at the C-terminus. It contains AA Lys 14 - Pro 1182 (Accession # Q3LZX1 (R654A, KV955-956PP)).
    Predicted N-terminus: Lys 14
  • Molecular Characterization
    Spike protein Structure

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 134.8 kDa. The protein migrates as 170-200 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS with trehalose as protectant.

    Contact us for customized product form or formulation.

  • Reconstitution

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • Storage

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Spike protein SDS-PAGE

Bat coronavirus HKU3 (BtCoV) (SARS-like coronavirus HKU3) Spike Trimer, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

SEC-MALS
Spike protein MALS images

The purity of Bat coronavirus HKU3 (BtCoV) (SARS-like coronavirus HKU3) Spike Trimer, His Tag (Cat. No. SPN-B52H7) is more than 85% and the molecular weight of this protein is around 459-507 kDa verified by SEC-MALS.

  • Background
    The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.
  • Clinical and Translational Updates

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