L4146
瘦素 人
≥97% (SDS-PAGE), recombinant, expressed in E. coli, lyophilized powder
别名:
OB
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关于此项目
Biological source:
Escherichia coli
Form:
lyophilized powder
Assay:
≥97% (SDS-PAGE)
产品名称
瘦素 人, ≥97% (SDS-PAGE), recombinant, expressed in E. coli, lyophilized powder
biological source
Escherichia coli
recombinant
expressed in E. coli
sterility
sterile; 0.2 μm filtered
assay
≥97% (SDS-PAGE)
form
lyophilized powder
potency
≤3.0 ng/mL ED50/EC50
mol wt
predicted mol wt ~16 kDa
impurities
≤1.0 EU/μg endotoxin
UniProt accession no.
shipped in
ambient
storage temp.
−20°C
Quality Level
Gene Information
human ... LEP(3952)
Analysis Note
The biological activity is measured by its ability to induce proliferation of leptin-dependent human OB-R transfected murine BAF3 cells.
Application
Leptin human has been used:
- to study the effect of leptin on ACAT1 (acyl-coenzyme A:cholesterol acyltransferase 1) expression and cholesterol efflux from primary cultured human macrophages
- to study the effect of leptin on expression of IGFBP2 (insulin growth factor binding protein 2) in skeletal muscle
- to study the effect of leptin on HLA-G (human leukocyte antigen G) expression in placental trophoblasts
- to study the effect of leptin on in vitro maturation, fertilization and development of horse oocytes after ICSI (intracytoplasmic sperm injection)
Biochem/physiol Actions
Hormone produced primarily in adipocytes; primary site of action appears to be on neurons in the hypothalamus that are involved in regulating energy balance, appetite, and body weight.
Leptin is a hormone produced primarily in adipocytes, although leptin mRNA has also been identified in placenta and fetal tissues, gastric tissue and liver. Its primary site of action appears to be on neurons in the hypothalamus that are involved in regulating energy balance, appetite, and body weight. Leptin increases the production of nitric oxide in endothelial cells and stimulates angiogenesis in vitro and in vivo.
Human and mouse leptin share ~84% sequence identity.
Human and mouse leptin share ~84% sequence identity.
Leptin is believed to play a role in normal pregnancy development.
Mutations in LEP (leptin) are linked with type-2 diabetes. Presence of high levels of leptin in plasma is related to adiposity.
General description
The gene LEP (leptin) is mapped to human chromosome 7q31. It is a 16kDa peptide. Leptin is released in the circulation and goes to the CNS (central nervous system). In CNS, it works by associating with leptin receptor.
Physical form
Lyophilized from a 0.2 μm filtered solution with 0.0045 mM NaHCO3
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
涉药品监管产品
此项目有
Reza Meshkani et al.
Clinical laboratory, 62(1-2), 89-96 (2016-03-26)
The leptin (LEP G2548A) and leptin receptor (LEPR Q223R) gene polymorphisms have been variably associated with type 2 diabetes (T2D) in different populations. In this study we hypothesized that these variants might be associated with T2D and related metabolic traits
Shih-Ping Cheng et al.
Oncology reports, 23(6), 1721-1727 (2010-04-30)
Excess body weight is associated with a moderately increased risk of thyroid cancer. Adipocyte-derived hormone, leptin, has been shown to enhance cell growth and migration in many cancer types. Limited evidence suggests that leptin has direct actions on the thyroid
Eiji Kashiwagi et al.
American journal of translational research, 12(6), 3033-3045 (2020-07-14)
Adipocytokines such as leptin and adiponectin have functions in metabolism as well as the development and progression of various types of malignancies. However, little is known about their role in bladder cancer. In this study, we investigated whether leptin, adiponectin
Leptin action in normal and pathological pregnancies
Peerez PA, et al.
Journal of Cellular and Molecular Medicine, 22(2), 716-716 (2018)
Masafumi Kurajoh et al.
Cardiovascular diabetology, 14, 117-117 (2015-09-05)
It has been shown that visceral fat accumulation is associated with autonomic dysfunction, though the precise mechanism remains unclear. A recent basic study found that leptin can directly modulate autonomic function through the dorsomedial hypothalamus in relation to obesity. Here
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