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RBP4 Protein, Cynomolgus (HEK293, His)

Cat. No.: HY-P77171
COA Handling Instructions

RBP4 Protein, a vital retinol transporter in blood plasma, mediates the transfer from liver stores to peripheral tissues. It also enhances retinol transport by interacting with TTR. RBP4 Protein, Cynomolgus (HEK293, His) is the recombinant cynomolgus-derived RBP4 protein, expressed by HEK293 , with C-His labeled tag. The total length of RBP4 Protein, Cynomolgus (HEK293, His) is 183 a.a., with molecular weight of ~23 kDa.

For research use only. We do not sell to patients.

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  • Biological Activity

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Description

RBP4 Protein, a vital retinol transporter in blood plasma, mediates the transfer from liver stores to peripheral tissues. It also enhances retinol transport by interacting with TTR. RBP4 Protein, Cynomolgus (HEK293, His) is the recombinant cynomolgus-derived RBP4 protein, expressed by HEK293 , with C-His labeled tag. The total length of RBP4 Protein, Cynomolgus (HEK293, His) is 183 a.a., with molecular weight of ~23 kDa.

Background

RBP4 Protein is a retinol-binding protein that plays a crucial role in transporting retinol in the blood plasma. It acts as a mediator, facilitating the transfer of retinol from the liver stores to peripheral tissues. Additionally, RBP4 interacts with TTR, further contributing to its function in retinol transport.

Biological Activity

Measured by its ability to bind all-trans retinoic acid. The binding of retinoic acid results in the quenching of Trp fluorescence in RBP4. The 50% binding concentration (ED50) is 0.795 μM, as measured under the described conditions.

Species

Cynomolgus

Source

HEK293

Tag

C-His

Accession

A0A2K5W172 (E19-L201)

Gene ID
Molecular Construction
N-term
RBP4 (E19-L201)
Accession # A0A2K5W172
His
C-term
Synonyms
Retinol-Binding Protein 4; Plasma Retinol-Binding Protein; PRBP; RBP; RBP4
AA Sequence

ERDCRVSSFRVKENFDKARFSGTWYAMAKKDPEGLFLQDNIVAEFSVDETGQMSATAKGRVRLLNNWDVCADMVGTFTDTEDPAKFKMKYWGVASFLQKGNDDHWIIDTDYDTYAVQYSCRLLNLDGTCADSYSFVFSRDPNGLPPEAQRIVRQRQEELCLARQYRLIVHNGYCDGRSERNLL

Molecular Weight

Approximately 23 kDa

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

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.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

RBP4 Protein, Cynomolgus (HEK293, His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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RBP4 Protein, Cynomolgus (HEK293, His)
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HY-P77171
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