A1908
Asialofetuin 来源于胎牛血清
Type II (Sigma designation)
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关于此项目
Form:
powder
Biological source:
bovine
biological source
bovine
Quality Segment
type
Type II (Sigma designation)
form
powder
technique(s)
activity assay: suitable, inhibition assay: suitable
impurities
salt, essentially free, ≤1.0% N-acetylneuraminic acid
solubility
H2O: soluble 1.0 mg/mL, clear to hazy, colorless to very faintly yellow
storage temp.
2-8°C
Application
Asialofetuin from fetal calf serum is suitable for use:
- in the assay of the lactose binding activity of the galectin-7 by immunodetection of in situ binding activity to asialofetuin immobilized on nitrocellulose
- in the inhibition of zona pellucida hardening of mouse oocytes
- as an acceptor in sialyltransferase enzyme activity assay
Incorporation of asialofetuin (AF) in liposomes strongly enhance delivery to and endocytosis by cells displaying the AF receptor, notably hepatocytes. This provides a very efficient route for gene therapy.
Biochem/physiol Actions
Asialofetuin (AF) binds to asialoglycoprotein receptor (ASGP-R) and is employed as a ligand for drug delivery to the hepatocytes. It aids serum-resistant lipoplexes for efficient gene deliver into the HepG2 (human hepatoblastoma) cells.
Feutins are glycoproteins that belong to the cystatin superfamily. They are characterized by the presence of two tandemly arranged cystatin-like domains and an unrelated domain. It binds to transforming growth factor (TGF)-β/BMP (bone morphogenic protein) cytokines.
Preparation Note
Enzymatic cleavage using neuraminidase
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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)