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Bat coronavirus RS4081 Spike Trimer Protein (R653A, K954P, V955P), His Tag (MALS verified)

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SPN-S522g-100ug
$472.00
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SPN-S522g-1mg (500ug X 2)
$2,940.00
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SPN-S522g
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Product Details
Performance Data
Reviews & Citations
Resources
  • Product Details
  • Performance Data
  • Reviews & Citations
  • Important Statement
  • Resources
Synonyms

Spike, S protein, Spike glycoprotein, S glycoprotein

Source

Bat coronavirus RS4081 Spike Trimer Protein, His Tag (SPN-S522g) is expressed from human 293 cells (HEK293). It contains AA Gln 16 - Pro 1181 (Accession # ATO98120.1 (R653A, K954P, V955P)).

Predicted N-terminus: Gln 16

Molecular Characterization
Other Tags and Version Biotin & Other Labeled Version

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

The protein has a calculated MW of 134.9 kDa. The protein migrates as 150-180 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

The protein is designed as a trimer.

Endotoxin

Less than 1.0 EU per μg by the LAL method / rFC method.

Purity

>90% as determined by SDS-PAGE.

>90% as determined by SEC-MALS.

Formulation

Lyophilized from 0.22 μm filtered solution in 0.1 M Sodium citrate, pH5.5 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.

Shipping and Storage

This product is shipped at ambient temperature.

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:
  • -20°C to -70°C for 12 months in lyophilized state;
  • -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System

Background

The spike protein of bat coronavirus RS4081, a sarbecovirus related to SARS-CoV, mediates viral entry by facilitating attachment and membrane fusion. RS4081’s spike can support ACE2-independent, trypsin-dependent cell entry, highlighting alternative pathways for host infection and its potential relevance to zoonotic spillover and cross-species transmission studies.