Recombinant Human CD274 protein, C-His Tag
Product Description
Cat
IMP-241
Official Symbol
CD274
Product Overview
Recombinant Human CD274 protein(AA Phe 19-Arg 238)(Accession # NP_054862.1) is expressed from human 293 cells (HEK293). This protein carries a polyhistidine tag at the C-terminus.
Expression System
HEK293
Species
Human
Tag
C-His Tag
Form
Lyophilized from sterile PBS, pH7.4, 10% trehalose.
Molecular Mass
This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 26.0 kDa. The protein migrates as 35-42 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Protein length
Phe 19-Arg 238
Endotoxin
Less than 1.0 EU per ug by the LAL method.
Purity
>98% as determined by SDS-PAGE.
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: -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution.
Reconstitution
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 mg/ml. Centrifuge the vial at 4ºC before opening to recover the entire contents.
SDS-PAGE
SDS-PAGE

Human PD-L1, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 98%.

SEC-MALS 1
SEC-MALS

The purity of Human PD-L1, His Tag was more than 90% and the molecular weight of this protein is around 35-50 kDa verified by SEC-MALS.

Bioactivity-ELISA 1
Bioactivity-ELISA

Immobilized Human PD-L1, His Tag at 1 ug/mL (100 uL/well) can bind Anti-Human PD-L1 MAb (Human IgG1) with a linear range of 0.1-3 ng/mL.

Bioactivity-ELISA 2
Bioactivity-ELISA

Immobilized Human PD-L1, His Tag at series of concentration on Anti-His Tag (C-term) Antibody precoated (0.1 ug/well) plate, can bind Human PD-1, Mouse IgG2a Fc Tag (HPLC-verified) at 5 ug/mL (100 uL/well) with a linear range of 10-78 ng/mL.

Bioactivity-BLI 1

Loaded Human PD-1, Fc Tag, low endotoxin on ProteinA Biosensor, can bind Human PD-L1, His Tag with an affinity constant of 5.3 uM as determined in BLI assay (ForteBio Octet Red96e).

Bioactivity-BLI 2
Bioactivity-BLI

Loaded Anti-Human PD-L1 MAb (Human IgG1) on AHC Biosensor, can bind Human PD-L1, His Tag with an affinity constant of 1.61 nM as determined in BLI assay (ForteBio Octet Red96e).

Bioactivity-SPR 1
Bioactivity-SPR

Human PD-1, Fc Tag captured on CM5 chip via anti-human IgG Fc antibody, can bind Human PD-L1, His Tag with an affinity constant of 3.6 uM as determined in a SPR assay (Biacore T200).

Bioactivity-SPR 2
Bioactivity-SPR

Anti-Human PD-L1 Mab (Human IgG1) captured on CM5 chip via anti-human IgG Fc antibodies surface, can bind Human PD-L1, His Tag with an affinity constant of 0.286 nM as determined in a SPR assay (Biacore T200).

Bioactivity-alpha 1
Bioactivity-alpha

Biotinylated Human PD-1, Fc,Avitag at 1 ug/mL (5 uL/well) can bind Human PD-L1, His Tag with a linear range of 0.02-0.625 ug/mL as determined in a alphaLISA homogeneous assay.

Data Sheet MSDS
For research or industrial raw materials, not for personal medical use!

Online Inquiry
Contact Info