RBP4 Protein, Canine (HEK293, Fc)

RBP4 Protein is a member of the lipocalin family and the major transport protein of the hydrophobic molecule retinol, also known as vitamin A, in the circulation. RBP4 Protein, Canine (HEK293, Fc) is the recombinant canine-derived RBP4 protein, expressed by HEK293 , with C-hFc labeled tag.

RBP4 Protein is a member of the lipocalin family and the major transport protein of the hydrophobic molecule retinol, also known as vitamin A, in the circulation. RBP4 enables retinol binding and retinol transmembrane transporter activity. RBP4 is involved in retinol transport and located in extracellular space^[1][2][3].

Measured by its ability to bind alltrans retinoic acid. The binding of retinoic acid results in the quenching of Trp fluorescence in RBP4.The 50% binding concentration (BC₅₀) is >5 µM.

Canine

HEK293

C-hFc

F1PQI4/XP_038295882 (E19-L201)

477775  [NCBI]

Approximately 53 kDa

Greater than 90% as determined by reducing SDS-PAGE

Lyophilized powder

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.