Name : Biotinylated Human CD161 Protein

Product Source :
Recombinant Biotinylated Human CD161 Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus. It contains Gln67-Ser225.[Accession | Q12918-1]

Molecular Weight :
The protein has a predicted MW of 21.4 kDa. Due to glycosylation, the protein migrates to 41-45 kDa based on Tris-Bis PAGE result.

Endotoxin Level :
Less than 1EU per μg by the LAL method.

Purity :
> 95% as determined by Tris-Bis PAGE> 95% as determined by HPLC

Formulation :
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.

Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.

Storage and Stability :
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3-6 months after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

Product Concentration :
Tris-Bis PAGE Biotinylated Human CD161 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Biotinylated Human CD161 is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Anti-CD161 Antibody, hFc Tag at 5μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human CD161, His Tag with the EC50 of 32.5ng/ml determined by ELISA.

Background :
CD161 (NKRP1) is a lectin-like receptor present on NK cells and rare T-cell subsets. We have observed CD161 expression in some cases of T-cell prolymphocytic leukemia (T-PLL) and found it to be useful in follow-up and detection of disease after treatment.

Synonyms :
KLRB1; CLEC5B; NKRP1A; NKR-P1A; HNKR-P1a; CD161; Ly59; NKR; NKRP1; NKR-P1; NKRP1ANKR

References & Citations :
(1) Gilles SR, Yohe SL, Linden MA, Dolan M, Hirsch B, Grzywacz B. CD161 Is Expressed in a Subset of T-Cell Prolymphocytic Leukemia Cases and Is Useful for Disease Follow-up. Am J Clin Pathol. 2019 Sep 9;152(4):471-478. doi: 10.1093/ajcp/aqz060. PMID: 31305900.

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