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SDS-PAGE (Figure annotation denotes ug of protein loaded and % gel used.)

Leptin Recombinant Protein | LEP recombinant protein

Mouse Leptin protein

Gene Names
LEP; OB; obese
Applications
SDS-Page
Purity
> 95% pure
Synonyms
Leptin; Mouse Leptin protein; Obese protein protein; Obesity factor protein; LEP protein; OB protein; Leptin Mouse protein; Leptin protein; OBS protein; LEP recombinant protein
Ordering
For Research Use Only!
Host
Mouse
Purity/Purification
> 95% pure
Form/Format
Supplied as a liquid in PBS, pH 7.4.
Concentration
1 mg/ml (varies by lot)
Sequence
MVPIQKVQDD TKTLIKTIVT RINDISHTQS VSAKQRVTGL DFIPGLHPIL SLSKMDQTLA VYQQVLTSLP SQNVLQIAND LENLRDLLHL LAFSKSCSLP QTSGLQKPES LDGVLEASLY STEVVALSRL QGSLQDILQQ LDVSPEC
Sequence Length
167
Applicable Applications for LEP recombinant protein
SDS-PAGE
Protein Type
Recombinant
Biological Significance
Leptin is a 16-kDa nonglycosylated hormone that is produced in mature adipocytes. Leptin acts primarily in the hypothalamus to reduce food intake and body weight. In ob/ob mice, the gene encoding leptin is mutated, resulting in morbid obesity and associated abnormalities, including hyperphagia, hypothermia, diabetes and infertility. Originally discovered in the mouse, the cDNA for leptin has been so far cloned from a variety of species including human, rat, cow, chicken, pig, sheep and dog. Recombinant mouse leptin was overexpressed as insoluble protein aggregate in E Coli and purified by FPLC gel-filtration chromatography, after refolding of the isolated inclusion bodies in a renaturation buffer
Expression System
E Coli
Preparation and Storage
Store at 4 degree C for short term storage (1/2 weeks). Aliquot and store at -20 degree C or - 70 degree C for long term storage. Avoid repeated freeze/thaw cycles.

SDS-PAGE

(Figure annotation denotes ug of protein loaded and % gel used.)

SDS-PAGE (Figure annotation denotes ug of protein loaded and % gel used.)
Related Product Information for LEP recombinant protein
Purified recombinant Mouse Leptin protein
Product Categories/Family for LEP recombinant protein

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
UniProt Accession #
Molecular Weight
16 kDa (147 aa), confirmed by MALDI-TOF.
NCBI Official Full Name
leptin
NCBI Official Symbol
LEP
NCBI Official Synonym Symbols
OB; obese
NCBI Protein Information
leptin; Obesity factor
UniProt Protein Name
Leptin
Protein Family
UniProt Gene Name
LEP
UniProt Synonym Gene Names
OB
UniProt Entry Name
LEP_CAPHI

Uniprot Description

Key player in the regulation of energy balance and body weight control. Once released into the circulation, has central and peripheral effects by binding LEPR, found in many tissues, which results in the activation of several major signaling pathways (). In the hypothalamus, acts as an appetite-regulating factor that induces a decrease in food intake and an increase in energy consumption by inducing anorexinogenic factors and suppressing orexigenic neuropeptides, also regulates bone mass and secretion of hypothalamo-pituitary-adrenal hormones. In the periphery, increases basal metabolism, influences reproductive function, regulates pancreatic beta-cell function and insulin secretion, is pro-angiogenic for endothelial cell and affects innate and adaptive immunity (). In the arcuate nucleus of the hypothalamus, activates by depolarization POMC neurons inducing FOS and SOCS3 expression to release anorexigenic peptides and inhibits by hyperpolarization NPY neurons inducing SOCS3 with a consequent reduction on release of orexigenic peptides (). In addition to its known satiety inducing effect, has a modulatory role in nutrient absorption. In the intestine, reduces glucose absorption by enterocytes by activating PKC and leading to a sequential activation of p38, PI3K and ERK signaling pathways which exerts an inhibitory effect on glucose absorption (). Acts as a growth factor on certain tissues, through the activation of different signaling pathways increases expression of genes involved in cell cycle regulation such as CCND1, via JAK2-STAT3 pathway, or VEGFA, via MAPK1/3 and PI3K-AKT1 pathways (). May also play an apoptotic role via JAK2-STAT3 pathway and up-regulation of BIRC5 expression. Pro-angiogenic, has mitogenic activity on vascular endothelial cells and plays a role in matrix remodeling by regulating the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs). In innate immunity, modulates the activity and function of neutrophils by increasing chemotaxis and the secretion of oxygen radicals. Increases phagocytosis by macrophages and enhances secretion of pro-inflammatory mediators. Increases cytotoxic ability of NK cells. Plays a pro-inflammatory role, in synergy with IL1B, by inducing NOS2 wich promotes the production of IL6, IL8 and Prostaglandin E2, through a signaling pathway that involves JAK2, PI3K, MAP2K1/MEK1 and MAPK14/p38 (). In adaptive immunity, promotes the switch of memory T-cells towards T helper-1 cell immune responses (). Increases CD4+CD25- T-cell proliferation and reduces autophagy during TCR (T-cell receptor) stimulation, through MTOR signaling pathway activation and BCL2 up-regulation ().

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Product Notes

The LEP lep (Catalog #AAA837070) is a Recombinant Protein produced from Mouse and is intended for research purposes only. The product is available for immediate purchase. AAA Biotech's Leptin can be used in a range of immunoassay formats including, but not limited to, SDS-PAGE. Researchers should empirically determine the suitability of the LEP lep for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: MVPIQKVQDD TKTLIKTIVT RINDISHTQS VSAKQRVTGL DFIPGLHPIL SLSKMDQTLA VYQQVLTSLP SQNVLQIAND LENLRDLLHL LAFSKSCSLP QTSGLQKPES LDGVLEASLY STEVVALSRL QGSLQDILQQ LDVSPEC. It is sometimes possible for the material contained within the vial of "Leptin, Recombinant Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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