Recombinant Human Leptin/OB (Catalog # 398-LP) stimulates proliferation in the BaF3 mouse pro‑B cell line transfected with human Leptin R in a dose-dependent manner (orange line). Proliferation elicited by ...read more
E. coli-derived recombinant human Leptin/OB Val22-Cys167 Accession # P41159
Specificity
Captures human Leptin/OB in sandwich ELISAs. In this format, this antibody shows less than 0.1% cross-reactivity with recombinant mouse (rm) Leptin/OB and rrLeptin/OB.
Source
N/A
Isotype
IgG1
Clonality
Monoclonal
Host
Mouse
Gene
LEP
Purity Statement
Protein A or G purified from hybridoma culture supernatant
Endotoxin Note
<0.10 EU per 1 μg of the antibody by the LAL method.
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Leptin/OB Antibody (44802)
FLJ94114
LEP
leptin (murine obesity homolog)
leptin (obesity homolog, mouse)
Leptin
OB
Obese protein
obese, mouse, homolog of
Obesity factor
OBOBS
Background
Leptin is a protein product of the mouse obese gene. Mice with mutations in the obese gene that block the sythesis of Leptin have been found to be obese, diabetic and to have reduced activity, metabolism and body temperature. cDNA clones encoding Leptin have been isolated from human, simian, mouse and rat cells. Human Leptin shares approximately 84% sequence identity with the mouse protein. Human Leptin cDNA encodes a 167 amino acid residue protein with a 21 amino acid residue signal sequence that is cleaved to yield the 146 amino acid residue mature protein. The expression of Leptin mRNA has been shown to be restricted to adipose tissue.
A high-affinity receptor for Leptin (OB-R) with homology to gp130 and the G-CSF receptor has been cloned. OB-R mRNA has been shown to be expressed in the choroid plexus and in the hypothalamus. OB-R has also been identified as an isoform of B219, a sequence that is expressed in at least four isoforms in very primitive hematopoietic cell populations and in a variety of lymphohematopoietic cell lines (1-3). The roles of leptin in body weight regulation, hematopoiesis and reproduction continue to be investigated.
Considine, R. and J. Caro (1996) Clinical Chemistry 42:843.
Tartaglia, L.A. et al. (1995) Cell 83:1263.
Cioffi, J.A. et al. (1996) Nature Medicine 2:585.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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