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Merck

L4146

Sigma-Aldrich

Leptin human

≥97% (SDS-PAGE), recombinant, expressed in E. coli, lyophilized powder

Sinónimos:

OB

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About This Item

Número de CAS:
Número MDL:
Código UNSPSC:
51111800
NACRES:
NA.32

recombinante

expressed in E. coli

Nivel de calidad

esterilidad

sterile; 0.2 μm filtered

Análisis

≥97% (SDS-PAGE)

formulario

lyophilized powder

potencia

≤3.0 ng/mL ED50/EC50

mol peso

predicted mol wt ~16 kDa

impurezas

≤1.0 EU/μg endotoxin

Nº de acceso UniProt

Condiciones de envío

ambient

temp. de almacenamiento

−20°C

Información sobre el gen

human ... LEP(3952)

Categorías relacionadas

Descripción general

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.

Aplicación

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)

Acciones bioquímicas o fisiológicas

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.
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.

Forma física

Lyophilized from a 0.2 μm filtered solution with 0.0045 mM NaHCO3

Nota de análisis

The biological activity is measured by its ability to induce proliferation of leptin-dependent human OB-R transfected murine BAF3 cells.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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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
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