Name : Human CD161 Protein
Product Source :
Recombinant Human CD161 Protein is expressed from HEK293 with His tag at the C-Terminus. It contains Gln67-Ser225.[Accession | Q12918-1]
Molecular Weight :
The protein has a predicted MW of 19.6 kDa. Due to glycosylation, the protein migrates to 38-45 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 Human CD161 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%. SEC-HPLC The purity of Human CD161 is greater than 95% as determined by SEC-HPLC. ELISA Data Immobilized Human CD161, His Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Anti-CD161 Antibody, hFc Tag with the EC50 of 11.4ng/ml determined by ELISA (QC Test). SPR Data Anti-CD161 Antibody, hFc tag captured on CM5 Chip via Anti-hFc IgG can bind Human CD161, His Tag with an affinity constant of 78.8 nM as determined in SPR assay (Biacore T200).
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.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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