Human Leptin Quadruple Antagonist recombinant Protein

Phone: +49 (0) 40 . 43 20 84 48 0

E-Mail: info@active-bioscience.de

 

Product Overview, Sizes and Prices

 

Protein

Source: E. coli

Purity: ≥ 98 % (SDS-PAGE, Gel Filtration)

Physical state: Lyophilized

Manufacturer:  Active Bioscience

Article No. Size Price  
1648.950.010 10 µg 60 €
1648.950.050 50 µg 159 €
1648.950.199 1 mg on request €

Please inquire for other vial sizes and custom vialing.

 

 

Product Details

Description of Human Leptin Quadruple Antagonist

Leptin Quadruple Mutant Human Recombinant is a single polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a Mw of 16 kDa, Human Leptin was mutated, resulting in L39A/D40A/F41A/I42A.Leptin Antagonist Quadruple Mutant was purified by proprietary chromatographic techniques.

 

Biological Activity

Leptin-induced proliferation of BAF/3 cells stably transected with the long form of human Leptin receptor can be inhibited by Leptin Quadruple Antagonist Mutant. It also inhibits various Leptin effects in several in vitro bioassays.

 

Reconstitution

It is recommended to reconstitute the lyophilized Leptin Antagonist Quadruple Mutant in sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

 

Stability

Lyophilized Leptin Antagonist Quadruple Mutant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Leptin mutant mg/ml and up to 2 mM and filter sterilization LEP mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please avoid repeated freeze-thaw cycles.

 

Amino Acid Sequence

The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Gln.

 

 

 

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Errors, changes and availability excepted.

 

 

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Shipping

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