Product Code:	RE-CV2-RBD-01
Protein:	SARS-Cov-2 Spike, Receptor Binding Domain (aa 319- aa 541)
Volume:	100µg
Source:	E. coli
Mol. Wt:	26 kD
Purification:	Purified from E. coli by multi-step chromatography.
Purity:	Purity >95% by silver stain SDS-PAGE and InBio®MS (LC-MS/MS, relative abundance).
Validation:	Validated by IgG antibody ELISA using serum samples (n=10) from COVID-19 patients.
Concentration:	xx based on OD 280nm. Extinction Coefficient = 1.286.
Formulation:	Preservative and carrier-free in 20mM Tris, 0.3M NaCl, 6M Urea, pH 8.0. Filtered through 0.22µm filter.
Storage:	Store at -20ºC. Avoid repeated freeze-thaw cycles.
Notes:	SARS-CoV-2 NCR has a C-terminal 7xHis-tag.
For research and commercial use in vitro: not for human in vivo or therapeutic use. An InBio® product. Made in the USA

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