LEP (Human) Recombinant Protein
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Specification
Product Description
Human LEP (P41159, 22 a.a. - 167 a.a.) partial recombinant protein expressed in Escherichia coli.
Sequence
VPIQKVQDDTKTLIKTIVTRINDISHTQSVSSKQKVTGLDFIPGLHPILTLSKMDQTLAVYQQILTSMPSRNVIQISNDLENLRDLLHVLAFSKSCHLPWASGLETLDSLGGVLEASGYSTEVVALSRLQGSLQDMLWQLDLSPGC
Host
Escherichia coli
Theoretical MW (kDa)
16
Form
Lyophilized
Preparation Method
Escherichia coli expression system
Purity
> 97% as analyzed by SDS-PAGE.
> 97% as analyzed by HPLC.Endotoxin Level
< 1 EU/ug of protein by LAL method
Activity
Fully biologically active when compared to standard. The ED50 as determined by a chemotaxis bioassay using human Leptin R transfected BaF3 murine proB cells is less than 2.0 ng/mL, corresponding to a specific activity of > 5.0 × 105 IU/mg.
Recommend Usage
Biological Activity
SDS-PAGE
The optimal working dilution should be determined by the end user.Storage Buffer
Lyophilized from PBS. Reconstitute the lyophilized powder in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL.
Storage Instruction
Store at 4°C to 8°C for 1 week. For long term storage store at -20°C to -80°C.
Aliquot to avoid repeated freezing and thawing. -
Applications
Functional Study
SDS-PAGE
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Gene Info — LEP
Entrez GeneID
3952Protein Accession#
P41159Gene Name
LEP
Gene Alias
FLJ94114, OB, OBS
Gene Description
leptin
Omim ID
164160Gene Ontology
HyperlinkGene Summary
This gene encodes a protein that is secreted by white adipocytes, and which plays a major role in the regulation of body weight. This protein, which acts through the leptin receptor, functions as part of a signaling pathway that can inhibit food intake and/or regulate energy expenditure to maintain constancy of the adipose mass. This protein also has several endocrine functions, and is involved in the regulation of immune and inflammatory responses, hematopoiesis, angiogenesis and wound healing. Mutations in this gene and/or its regulatory regions cause severe obesity, and morbid obesity with hypogonadism. This gene has also been linked to type 2 diabetes mellitus development. [provided by RefSeq
Other Designations
leptin (murine obesity homolog)|leptin (obesity homolog, mouse)|obese, mouse, homolog of|obesity factor
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