RBP4 Protein (His tag)

Catalog No. ABIN7321242

Product Details

Target: RBP4 (Retinol Binding Protein 4, Plasma (RBP4))

Protein Type: Recombinant

Biological Activity: Active

Origin: Rat

Source: HEK-293 Cells

Purification tag / Conjugate: This RBP4 protein is labelled with His tag.

Purpose: Recombinant Rat RBP4 Protein (His Tag)(Active)

Sequence: Met 1-Leu 201

Characteristics: A DNA sequence encoding the extracellular domain of rat RBP4 (NP_037294.1) (Met 1-Leu 201) was expressed, fused with a polyhistidine tag at the C-terminus.

Purity: > 97 % as determined by SDS-PAGE

Endotoxin Level: < 1.0 EU per μg of the protein as determined by the LAL method

Biological Activity Comment: 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 >0.5 μM.

Application Details

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Please refer to the printed manual for detailed information.

Buffer: Lyophilized from sterile PBS, pH 7.4

Storage: 4 °C,-20 °C,-80 °C

Storage Comment: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Target Details

Target: RBP4 (Retinol Binding Protein 4, Plasma (RBP4))

Alternative Name: RBP4 (RBP4 Products)

Synonyms: RDCCAS Protein, RBP Protein, RNBP Protein, rbp4 Protein, MGC54038 Protein, srbp Protein, PRBP Protein, RBPA Protein, Rbp-4 Protein, fb23c12 Protein, rbp Protein, wu:fb23c12 Protein, wu:fb58d04 Protein, wu:fb72b04 Protein, zgc:86911 Protein, retinol binding protein 4 Protein, renin binding protein Protein, retinol binding protein 4 S homeolog Protein, retinol binding protein 4 A, plasma Protein, retinol binding protein 4, plasma Protein, retinol binding protein 4 L homeolog Protein, RBP4 Protein, RENBP Protein, rbp4.S Protein, rbp4 Protein, Rbp4 Protein, RBP4A Protein, rbp4.L Protein

Background:

Background: Retinol-binding protein 4 (RBP4) is the specific carrier for retinol (also known as vitamin A), and is responsible for the conversion of unstable and insoluble retinol in aqueous solution into stable and soluble complex in plasma through their tight interaction. As a member of the lipocalin superfamily, RBP4 containing a β-barrel structure with a well-defined cavity is secreted from the liver, and in turn delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP4-retinol complex interacts with transthyretin (TTR), and this binding is crucial for preventing RBP4 excretion through the kidney glomeruli. RBP4 expressed from an ectopic source efficiently delivers retinol to the eyes, and its deficiency affects night vision largely. Recently, RBP4 as an adipokine, is found to be expressed in adipose tissue and correlated with obesity, insulin resistance (IR) and type 2 diabetes (T2DM).

Synonym: RBPA;Rbp4

Molecular Weight: 22.8 kDa

NCBI Accession: NP_037294

Pathways: Regulatory RNA Pathways, Positive Regulation of Peptide Hormone Secretion, Carbohydrate Homeostasis, Production of Molecular Mediator of Immune Response