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Leptin Receptor Cell Lysate | LEPR cell lysate

Human Leptin Receptor HEK293 Overexpression Lysate

Gene Names
LEPR; OBR; OB-R; CD295; LEP-R; LEPRD
Applications
Western Blot
Synonyms
Leptin Receptor; Human Leptin Receptor HEK293 Overexpression Lysate; Human Leptin Receptor/LEPR/CD295 HEK293 Cell Lysate (WB positive control); leptin receptor; Human CD295 Overexpression Lysate; Human LEP-R Overexpression Lysate; Human LEPRD Overexpression Lysate; Human OB-R Overexpression Lysate; Human OBR Overexpression Lysate; LEPR cell lysate
Ordering
For Research Use Only!
Host
HEK293 Cells
Form/Format
1x Sample Buffer (1x modified RIPA buffer+1x SDS loading buffer).
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Sequence Positions
1065aa
Sequence
Met1-Asp839
Applicable Applications for LEPR cell lysate
Western Blot (WB)
Application Notes
WB: Use at an assay dependent dilution.
Species
Human
Recommend Usage
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.2. Re-dissolve the pellet using 200uL pure water and boil for 2-5 min.
Sequence Construction
A DNA sequence encoding the extracellular domain (Met 1-Asp 839) of human leptin receptor precursor (NP_002294.2) was expressed with the C-terminal fused polyhistidine-tagged Fc region of human IgG1.
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors. Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Preparation and Storage
Store at 4 degree C for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80 degree C for up to twelve months. Avoid repeated freeze-thaw cycles.
Samples are stable for up to twelve months from date of receipt.
Related Product Information for LEPR cell lysate
Leptin Receptor or CD295 belongs to the gp130 family of cytokine receptors that are known to stimulate gene transcription via activation of cytosolic STAT proteins. This protein is a receptor for leptin (an adipocyte-specific hormone that regulates body weight) and is involved in the regulation of fat metabolism, as well as in a novel hematopoietic pathway that is required for normal lymphopoiesis. Leptin Receptor/CD295 is transmembrane catalytic receptors found on NPY/AgRP and alpha-MSH/CART neurons in hypothalamic nuclei. Leptin receptors (Ob-Rs) are coded for by one human gene that produces six different isoforms; Ob-Ra-Ob-Rf. Ob-Rs exist as constitutive dimers at physiological expression levels. Only the Ob-Rb isoform can transduce intracellular signals and does so through activation of the JAK2/STAT3, PI 3-K, and MAPK signaling cascades. Activation of Ob-Rs mediates transcriptional regulation of the hypothalamic melanocortin pathway and downregulates endocannabinoid expression. Leptin acts via leptin receptors. Leptin resistance has been proposed as a pathophysiological mechanism of obesity. In obese individuals, Ob-Ra (which is involved in the active transport of leptin across the blood-brain barrier) expression is downregulated and the individual may be unresponsive to leptin signals. Ob-R antagonists are of great interest in the development of pharmacological treatments for obesity. Mutations in the Leptin Receptor/CD295 have been associated with obesity and pituitary dysfunction.

This Human Leptin Receptor overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Leptin Receptor protein from the overexpression lysate was verified.
References
Heshka JT, et al. (2001) A role for dietary fat in leptin receptor, OB-Rb, function. Life Sci. 69 (9): 987-1003.Chen H, et al (1996) Evidence that the diabetes gene encodes the leptin receptor: identification of a mutation in the leptin receptor gene in db/db mice. Cell. 84 (3): 491-5.Bjrbaek C, et al. (1998) Divergent signaling capacities of the long and short isoforms of the leptin receptor. J Biol Chem. 272 (51): 32686-95.

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
96,042 Da
NCBI Official Full Name
leptin receptor isoform 1
NCBI Official Synonym Full Names
leptin receptor
NCBI Official Symbol
LEPR
NCBI Official Synonym Symbols
OBR; OB-R; CD295; LEP-R; LEPRD
NCBI Protein Information
leptin receptor; huB219; OB receptor
UniProt Protein Name
Leptin receptor
Protein Family
UniProt Gene Name
LEPR
UniProt Synonym Gene Names
DB; OBR; LEP-R; OB-R
UniProt Entry Name
LEPR_HUMAN

NCBI Description

The protein encoded by this gene belongs to the gp130 family of cytokine receptors that are known to stimulate gene transcription via activation of cytosolic STAT proteins. This protein is a receptor for leptin (an adipocyte-specific hormone that regulates body weight), and is involved in the regulation of fat metabolism, as well as in a novel hematopoietic pathway that is required for normal lymphopoiesis. Mutations in this gene have been associated with obesity and pituitary dysfunction. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. It is noteworthy that this gene and LEPROT gene (GeneID:54741) share the same promoter and the first 2 exons, however, encode distinct proteins (PMID:9207021).[provided by RefSeq, Nov 2010]

Uniprot Description

LEPR: the receptor for leptin (obesity factor). A single-transmembrane-domain receptor of the cytokine receptor family. On ligand binding, mediates signaling through JAK2/STAT3. Involved in the regulation of fat metabolism and, in a hematopoietic pathway, required for normal lymphopoiesis. May play a role in reproduction. Five alternatively spliced transcript variants have been reported.

Protein type: Membrane protein, integral; Receptor, cytokine

Chromosomal Location of Human Ortholog: 1p31

Cellular Component: integral to membrane; plasma membrane; extracellular region; receptor complex

Molecular Function: hematopoietin/interferon-class (D200-domain) cytokine receptor activity; identical protein binding; protein binding; transmembrane receptor activity

Biological Process: cholesterol metabolic process; cell surface receptor linked signal transduction; negative regulation of hydrolase activity; multicellular organismal development; negative regulation of gluconeogenesis; cytokine and chemokine mediated signaling pathway; energy reserve metabolic process

Disease: Leptin Receptor Deficiency

Research Articles on LEPR

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Product Notes

The LEPR lepr (Catalog #AAA8113704) is a Cell Lysate produced from HEK293 Cells and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is 1065aa. AAA Biotech's Leptin Receptor can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). WB: Use at an assay dependent dilution. Researchers should empirically determine the suitability of the LEPR lepr 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: Met1-Asp83 9. It is sometimes possible for the material contained within the vial of "Leptin Receptor, Cell Lysate" 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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