Leptin Active Protein | N82K active protein

Recombinant Pegylated Human Leptin N82K

Cat. Num. AAA141477

• Gene Names: LEP; OB; OBS; LEPD
• Purity: >99.0% as determined by:; (a) Gel filtration analysis.; (b) Analysis by SDS-PAGE.
• Synonyms: Leptin; Recombinant Pegylated Human Leptin N82K; OB Protein; Obesity Protein; OBS; Obesity factor; Leptin Human; N82K PEG; Leptin N82K PEG; Leptin N82K Human Recombinant; Pegylated; N82K active protein

• Host: E Coli
• Purity/Purification: >99.0% as determined by:; (a) Gel filtration analysis.; (b) Analysis by SDS-PAGE.
• Form/Format: Sterile filtered white lyophilized (freeze-dried) powder.; Lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3 Having 35-40% protein.
• Sequence Length: 167

• Solubility: It is recommended to reconstitute the lyophilized Pegylated Leptin N82K in sterile water or 0.4% NaHCO3 adjusted to pH 8-9, not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
• Biological Activity: Biological Activity is < than 0.1% as determined by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. This abolishment of activity results from drastically reduced affinity toward leptin receptor.
• Protein Content: Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.870 as the extinction coefficient for a 0.1% (1mg/ml) protein solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
• Preparation and Storage: Lyophilized Pegylated Leptin N82K although stable at room temperature for 3 weeks, should be stored desiccated below -18 degree C.; Upon reconstitution Pegylated Leptin N82K should be stored at 4 degree C between 2-7 days and for future use below -18 degree C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).; Please prevent freeze-thaw cycles.

Related Product Information for N82K active protein

Introduction: Leptin takes an important part in the regulation of energy balance and body weight control.After entering the circulation, Leptin binds LEPRwhich results in the activation of several major signalling pathways. In the hypothalamus Leptin acts as an appetite-regulating factor that induces a decrease in food intake and an increase in energy consumption and also regulates bone mass and secretion of hypothalamo-pituitary-adrenal hormones. In the periphery, increases basal metabolism, regulates pancreatic beta-cell function and insulin secretion and affects innate and adaptive immunity.

Description: Pegylated Leptin N82K Human Recombinant produced in E.Coli is a single non-glycosilated polypeptide chain containing 146 amino acids, an additional Ala at N-terminus and one molecule of PEG 20 kDa at its N-terminus acids and having a molecular weight of 35.6kDa. However due to enlarged hydrodymanic volume it runs on the SDS-PAGE as 48 kDa protein and in gel-filtration on Superdex 200 as over 200 kDa protein. Pegylated Leptin N82K Human Recombinant was purified by proprietary chromatographic techniques.

Product Categories/Family for N82K active protein

CYTOKINES AND GROWTH FACTORS

NCBI and Uniprot Product Information

• NCBI GI #: 4557715
• NCBI GeneID: 3952
• NCBI Accession #: NP_000221.1
• NCBI GenBank Nucleotide #: NP_000221.1
• UniProt Accession #: P41159
• NCBI Official Full Name: leptin
• NCBI Official Synonym Full Names: leptin
• NCBI Official Symbol: LEP
• NCBI Official Synonym Symbols: OB; OBS; LEPD
• NCBI Protein Information: leptin
• UniProt Protein Name: Leptin
• Protein Family: Leptin
• UniProt Gene Name: LEP
• UniProt Synonym Gene Names: OB; OBS
• UniProt Entry Name: LEP_HUMAN

NCBI Description

This gene encodes a protein that is secreted by white adipocytes into the circulation and plays a major role in the regulation of energy homeostasis. Circulating leptin binds to the leptin receptor in the brain, which activates downstream signaling pathways that inhibit feeding and promote energy expenditure. This protein also has several endocrine functions, and is involved in the regulation of immune and inflammatory responses, hematopoiesis, angiogenesis, reproduction, bone formation and wound healing. Mutations in this gene and its regulatory regions cause severe obesity and morbid obesity with hypogonadism in human patients. A mutation in this gene has also been linked to type 2 diabetes mellitus development. [provided by RefSeq, Aug 2017]

Uniprot Description

leptin: May function as part of a signaling pathway that acts to regulate the size of the body fat depot. An increase in the level of LEP may act directly or indirectly on the CNS to inhibit food intake and/or regulate energy expenditure as part of a homeostatic mechanism to maintain constancy of the adipose mass. Defects in LEP may be a cause of obesity (OBESITY). It is a condition characterized by an increase of body weight beyond the limitation of skeletal and physical requirements, as the result of excessive accumulation of body fat. Belongs to the leptin family.

Protein type: Secreted; Cell development/differentiation; Hormone; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 7q31.3

Cellular Component: extracellular space; cytoplasm; extracellular region

Molecular Function: growth factor activity; peptide hormone receptor binding; hormone activity

Biological Process: circadian rhythm; response to dietary excess; positive regulation of myeloid cell differentiation; regulation of fat cell differentiation; regulation of steroid biosynthetic process; female pregnancy; negative regulation of transcription from RNA polymerase II promoter; glucose homeostasis; negative regulation of appetite; positive regulation of luteinizing hormone secretion; positive regulation of tyrosine phosphorylation of Stat3 protein; response to insulin stimulus; response to vitamin E; positive regulation of MAPKKK cascade; regulation of cholesterol absorption; regulation of blood pressure; positive regulation of cell proliferation; positive regulation of ion transport; placenta development; central nervous system neuron development; positive regulation of cytokine production; cholesterol metabolic process; positive regulation of developmental growth; eating behavior; bile acid metabolic process; glucose metabolic process; adult feeding behavior; ovulation from ovarian follicle; leptin-mediated signaling pathway; negative regulation of vasoconstriction; tyrosine phosphorylation of STAT protein; fatty acid beta-oxidation; glycerol biosynthetic process; insulin secretion; response to hypoxia; energy reserve metabolic process; hormone metabolic process; regulation of gluconeogenesis; positive regulation of follicle-stimulating hormone secretion; positive regulation of insulin receptor signaling pathway; leukocyte tethering or rolling; regulation of insulin secretion; negative regulation of apoptosis

Disease: Leptin Deficiency