PROVETOP

Biotinylated Human ULBP-1 Protein

Catalog No: ULBP1-HB001

Species
Human
Expression System
HEK293
Tag
His, Avi
Activity
Activity verified

Product overview

Recombinant Biotinylated Human ULBP-1 Protein is expressed in HEK293 cells with a His tag and Avi tag at the C-terminus. It contains amino acid residues Gly26-Pro215 (UniProt accession: Q9BZM6).

Product Details

Molecular Aliases
ALCAN-beta; NKG2D ligand 1; N2DL-1; NKG2DL1; MULT-1; NKG2DL; AET1I; ULBP1; ULBP-1;ALCAN-β;N2DL1; MULT1;ALCAN-b
Protein Length
Gly26-Pro215
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 25.2 kDa. Due to glycosylation, the protein migrates to 28-35 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22 μm filtered solution in 20mM PB, 0.5M NaCl, 0.1M L-arginine (pH 8.0). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
ULBP1-HB001 Bis-Tris-PAGE-white result

Biotinylated Human ULBP-1 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
ULBP1-HB001 SEC-HPLC result

The purity of Biotinylated Human ULBP-1 is greater than 95% as determined by SEC-HPLC.

ELISA
ULBP1-HB001 ELISA result

Immobilized Human NKG2D, hFc Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human ULBP-1, His Tag with the EC50 of 0.14μg/ml determined by ELISA.

Background

Cell surface proteins major histocompatibility complex (MHC) class I-related chain A (MICA) and UL16-binding proteins (ULBP) 1, 2, and 3 are up-regulated upon infection or tumor transformation and can activate human natural killer (NK) cells.

References

  1. Schrama D, Terheyden P, Otto K, et al. Expression of the NKG2D ligand UL16 binding protein-1 (ULBP-1) on dendritic cells. Eur J Immunol. 2006;36(1):65-72. doi:10.1002/eji.200535115

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