SARS-CoV-2 Spike NTD Protein (T95I, G142D, E154K), His Tag (MALS verified)

分子别名（Synonym）

S1 protein NTD,Spike protein S1 NTD,BetaCoV S1-NTD

表达区间及表达系统（Source）

SARS-CoV-2 Spike NTD (T95I, G142D, E154K), His Tag (S1D-C52Hf) is expressed from human 293 cells (HEK293). It contains AA Ser 13 - Leu 303 (Accession # QHD43416.1 (T95I, G142D, E154K)). The mutations (T95I, G142D, E154K) were identified in the SARS-CoV-2 Kappa variant (Pango lineage: B.1.617.1; other names: 21A/S:154K).

Predicted N-terminus: Ser 13

蛋白结构（Molecular Characterization）

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

The protein has a calculated MW of 35.0 kDa. The protein migrates as 55-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素（Endotoxin）

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

纯度（Purity）

>95% as determined by SDS-PAGE.

制剂（Formulation）

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法（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.

存储（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.

质量管理控制体系（QMS）

1. 质量管理体系（ISO, GMP）
2. 质量优势
3. 质控流程