Recombinant Human RBP4, His-tagged

• Cat.No.: RBP4-3717H
• Product Overview: Total 204 AA. MW: 23 kDa (calculated). N-terminal His-tag, 21 extra AA (highlighted). The AA sequence is identical to UniProtKB/Swiss-Prot entry Q5VY30 (AA16-199).

Specification

• Species: Human
• Source: E.coli
• Tag: His
• Protein Length: 16-199 a.a.
• Description: RBP4 is protein that in humans is encoded by the RBP4 gene.This protein belongs to the lipocalin family and is the specific carrier for retinol (vitamin A alcohol) in the blood. It delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin, which prevents its loss by filtration through the kidney glomeruli. A deficiency of vitamin A blocks secretion of the binding protein posttranslationally and results in defective delivery and supply to the epidermal cells.
• Form: Filtered (0.4 μm) and lyophilized from 0.5 mg/ml in PBS buffer, pH 7.5.
• Research topic: Diabetology-Autoimmunity; Energy metabolism and body weight regulation
• Purity: 95%, as determined by SDS-PAGE.
• Reconstitution: Add deionized water to prepare a working stock solution of approximately 0.5 mg/mL and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.
• Applications: Western blotting; ELISA; Binding assay
• Quality Control Test: BCA to determine quantity of the protein; SDS PAGE to determine purity of the protein
• Sequences of amino acids: MSWWHHHHHH NWNIPTTQDT TERDCRVSSF RVKENFDKAR FSGTWYAMAK KDPEGLFLQD NIVAEFSVDE TGQMSATAKG RVRLLNNWDV CADMVGTFTD TEDPAKFKMK YWGVASFLQK GNDDHWIVDT DYDTYAVQYS CRLLNLDGTC ADSYSFVFSR DPNGLPPEAQ KIVRQRQEEL CLARQYRLIV HNGYCDGRSE RNLL
• Storage: Store lyophilized protein at -20°C. Lyophilized protein remains stable until the expiry date when stored at -20°C. Aliquot reconstituted protein to avoid repeated freezing/thawing cycles and store at -80°C for long term storage. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after one week at 4°C.
• Pathways: Vitamin A and carotenoid metabolism

Gene Information

• Gene Name: RBP4 retinol binding protein 4, plasma [ Homo sapiens ]
• Official Symbol: RBP4
• Synonyms: RBP4; retinol binding protein 4, plasma; retinol-binding protein 4; RBP; PRBP; OTTHUMP00000020114; OTTHUMP00000020115; OTTHUMP00000020116; plasma retinol-binding protein; retinol-binding protein 4, interstitial; Retinol-binding protein 4; Plasma retinol-binding protein; PRO2222
• Gene ID: 5950
• mRNA Refseq: NM_006744
• Protein Refseq: NP_006735
• MIM: 180250
• UniProt ID: P02753
• Chromosome Location: 10q23-q24
• Function: protein binding; retinal binding; retinol binding; retinol transporter activity; transporter activity