25-hydroxycholesterol 7-alpha-hydroxylase; Cytochrome P450 7B1; Oxysterol 7-alpha-hydroxylase

For Research Use Only. Not for use in diagnostic procedures.

Synthetic

>85%

Lyophilized Powder

Shipped at 4 degree C. Store at -20 degree C for one year.

Small volumes of CYP7B1 blocking peptide vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

The peptide is used to block Anti-Cytochrome P450 7B1 Antibody reactivity.

Blocking (BL)

Blocking Peptide to the diluted primary antibody in a molar ratio of 10:1 (peptide to antibody) and incubate the mixture at 4 degree C for overnight or at room temperature for 2 hours.

58,256 Da

cytochrome P450 family 7 subfamily B member 1

25-hydroxycholesterol 7-alpha-hydroxylase

25-hydroxycholesterol 7-alpha-hydroxylase

CP7B1_HUMAN

This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This endoplasmic reticulum membrane protein catalyzes the first reaction in the cholesterol catabolic pathway of extrahepatic tissues, which converts cholesterol to bile acids. This enzyme likely plays a minor role in total bile acid synthesis, but may also be involved in the development of atherosclerosis, neurosteroid metabolism and sex hormone synthesis. [provided by RefSeq, Jul 2008]

CYP7B1: Defects in CYP7B1 are the cause of spastic paraplegia autosomal recessive type 5A (SPG5A). Spastic paraplegia is a neurodegenerative disorder characterized by a slow, gradual, progressive weakness and spasticity of the lower limbs. Rate of progression and the severity of symptoms are quite variable. Initial symptoms may include difficulty with balance, weakness and stiffness in the legs, muscle spasms, and dragging the toes when walking. In some forms of the disorder, bladder symptoms (such as incontinence) may appear, or the weakness and stiffness may spread to other parts of the body. Defects in CYP7B1 are the cause of congenital bile acid synthesis defect type 3 (CBAS3). Clinical features include severe cholestasis, cirrhosis and liver synthetic failure. Hepatic microsomal oxysterol 7-alpha-hydroxylase activity is undetectable. Belongs to the cytochrome P450 family.

Protein type: Endoplasmic reticulum; Oxidoreductase; EC 1.14.13.100; Lipid Metabolism - primary bile acid biosynthesis

Chromosomal Location of Human Ortholog: 8q21.3

Cellular Component: endoplasmic reticulum membrane

Molecular Function: 25-hydroxycholesterol 7alpha-hydroxylase activity; heme binding; iron ion binding; oxysterol 7-alpha-hydroxylase activity

Biological Process: bile acid biosynthetic process; bile acid metabolic process; cholesterol metabolic process; negative regulation of estrogen receptor signaling pathway; positive regulation of epithelial cell proliferation; sterol metabolic process; xenobiotic metabolic process

Disease: Bile Acid Synthesis Defect, Congenital, 3; Spastic Paraplegia 5a, Autosomal Recessive

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