LEP, Recombinant, Human (Leptin, Obese Protein, Obesity Factor, FLJ94114, OB, OBS)

Catalog No : USB-143423
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Product name LEP, Recombinant, Human (Leptin, Obese Protein, Obesity Factor, FLJ94114, OB, OBS)
Catalog No USB-143423
Supplier’s Catalog No 143423
Supplier US Biologicals
Source antigen Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight
Storage -20°C
Other names
Grade Highly Purified
Purity ≥98% by SDS-PAGE gel and HPLC analyses.
Form Supplied as a lyophilized powder.
Reactivity life 12 months
Note For reserch purpose only
Purity ≥98% by SDS-PAGE gel and HPLC analyses.
Description Encoded by the ob (obese) gene, Leptin is an adipose-derived cytokine that suppresses appetite and increases thermogenesis. Leptin exerts its anorectic effect via signaling through a hypothalamic receptor termed OB-R. Leptin has been shown to reduce body weight, food consumption, and plasma glucose levels in various in vivo models. Recombinant human Leptin is a 16kD protein containing 147aa residues. Biological Activity: Human Leptin is biologically active in the ob/ob mouse obesity model. The ob/ob mice were treated via intraperitoneal injection once daily at a dose of 5ug Leptin/gm of body weight for 7 days. Significant effects on body weight, food consumption, and plasma glucose levels were observed to saline-treated controls. AA Sequence: MVPIQKVQDD TKTLIKTIVT RINDISHTQS VSSKQKVTGL DFIPGLHPIL TLSKMDQTLA VYQQILTSMP SRNVIQISND LENLRDLLHV LAFSKSCHLP WASGLETLDS LGGVLEASGY STEVVALSRL QGSLQDMLWQ LDLSPGC Crossreactivity: Chicken, Monkey, Mouse, Rat Quality Control: Verified by N-terminal and Mass Spectrometry analyses (when applicable). Endotoxin: <0.1ng/ug of protein (<1EU/ug). Protein Content: Verified by UV Spectroscopy and/or SDS-PAGE gel. Storage and Stability: Store lyophilized products at -20°C. For reconstituted solutions of most products, we recommend short-term storage at 4°C. For longer term storage the protein solution should be stored with a carrier protein (eg. 0.1% BSA) in working aliquots and stored frozen at -20°C. Additional freeze/thaw cycles may cause some denaturation of the protein.