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奥密克戎Spike三聚体蛋白
义翘神州
40589-V08H26
纯度
> 90 % as determined by SDS-PAGE. > 95 % as determined by SEC-HPLC.
内毒素
< 1.0 EU per μg protein as determined by the LAL method.
生物活性
Immobilized human ACE2 protein (mFc tag)(Cat:10108-H05H) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 B.1.1.529 (Omicron) S1+S2 trimer Protein ( ECD, His Tag)(Cat:40589-V08H26), the EC50 is 4-15 ng/mL.
蛋白构建
A DNA sequence encoding the SARS-CoV-2 Spike S1+S2 (YP_009724390.1, with mutations A67V, HV69-70 deletion, T95I, G142D, VYY143-145 deletion, N211 deletion, L212I, ins214EPE, G339D, S371L, S373P, S375F, K417N, N440K, G446S, S477N, T478K, E484A, Q493R, G496S, Q498R, N501Y, Y505H, T547K, D614G, H655Y, N679K, P681H, N764K, D796Y, F817P, N856K, A892P, A899P, A942P, Q954H, N969K, L981F, K986P, V987P and furin cleavage site mutants) expressed with the bacteriophage T4 fibritin and a polyhistidine tag at the C-terminus. The mutations were identified in the SARS-CoV-2 variant (known as variant B.1.1.529) which emerged in the South Africa.
NP No.
表达宿主
HEK293 Cells
种属
SARS-CoV-2
预测 N 端
Val 16
分子量
The recombinant SARS-CoV-2 Spike S1+S2 consists of 1228 amino acids and predicts a molecular mass of 136.67 kDa.
缓冲液
Lyophilized from sterile 25mM sodium citrate，200mM NaCl, 0.02% tween80, pH6.0.
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
运输方式
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
稳定性 & 储存条件
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
复溶
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Immobilized human ACE2 protein (mFc tag)(Cat:10108-H05H) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 B.1.1.529 (Omicron) S1+S2 trimer Protein ( ECD, His Tag)(Cat:40589-V08H26), the EC50 is 4-15ng/mL.
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