CUSABIO uses the recombinant human CH25H protein (142-272AA) to immunize rabbits and then purify the rabbit antiserum through protein G to obtain the anti-CH25H antibody. This CH25H antibody is a polyclonal antibody and occurs as an unconjugated IgG. Its purity is greater than 95%. It only reacts with human CH25H protein, an IFN-induced enzyme that catalyzes the oxidation of cholesterol to 25-hydroxycholesterol (25HC) to reduce cholesterol accumulation. 25HC, a natural oxysterol, plays a role in regulating cholesterol homeostasis and sterol biosynthesis and exerts broad-spectrum antiviral function. And this anti-CH25H antibody can be used in ELISA and IHC for the detection of the CH25H protein.
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
貨期:
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用途:
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
Catalyzes the formation of 25-hydroxycholesterol from cholesterol, leading to repress cholesterol biosynthetic enzymes. Plays a key role in cell positioning and movement in lymphoid tissues: 25-hydroxycholesterol is an intermediate in biosynthesis of 7-alpha,25-dihydroxycholesterol (7-alpha,25-OHC), an oxysterol that acts as a ligand for the G protein-coupled receptor GPR183/EBI2, a chemotactic receptor for a number of lymphoid cells. May play an important role in regulating lipid metabolism by synthesizing a corepressor that blocks sterol regulatory element binding protein (SREBP) processing. As an interferon-stimulated gene, has broad antiviral activities against a wide range of enveloped viruses, such as vesicular stomatitis virus (VSV) and SARS coronavirus-2 (SARS-CoV-2). Its product, 25-hydroxycholesterol, activates the ER-localized enzyme ACAT to induce internalization of accessible cholesterol on the plasma membrane and restricts SARS-CoV-2 S protein-mediated fusion which inhibits virus replication. In testis, production of 25-hydroxycholesterol by macrophages plays a role in Leydig cell differentiation.
基因功能參考文獻(xiàn):
We examined whether 25HC restricts infection by mammalian reovirus. Results suggest that 25HC inhibits the efficiency of cellular entry of reovirus virions, which may require specific endosomal membrane dynamics for efficient membrane penetration. PMID: 29950420
We detected Cholesterol 25-hydroxylase, the enzyme responsible for 25-HC production, in human spermatozoa at the level of the neck and the post acrosomal area. Upon incubation with spermatozoa, 25-HC induced calcium and cholesterol transients in connection with the acrosomal reaction. PMID: 27912195
Exome analysis in 212 multiple sclerosis and 14 neuromyelitis optica patients identified a rare CH25H p.Q17H mutation in two NMO patients of Asian ancestry. In addition, association analysis of common CH25H variants. PMID: 26857497
Infection with HCV causes up-regulation of interferon-inducible CH25H in vivo. PMID: 25999047
These results demonstrate that CH25H constitutes a primary innate response against hepatitis C virus infection through regulating host lipid metabolism. PMID: 25903345
Cholesterol 25-hydroxylase production by dendritic cells and macrophages is regulated by type I interferons. PMID: 20699362
Based on the results of genome-wide screens, along with biological studies, we selected three genes as candidates for AD risk factors: ATP-binding cassette transporter A1 (ABCA1), cholesterol 25-hydroxylase (CH25H) and cholesterol 24-hydroxylase (CH24H). PMID: 16157450