Anti-SRD5A1 Antibody Picoband®

3-oxo-5α-steroid 4-dehydrogenase 1 is an enzyme that in humans is encoded by the SRD5A1 gene. It is one of three forms of steroid 5α-reductase. The 3-oxo-5α-steroid 4-dehydrogenase 1 enzyme is involved in bile acid biosynthesis, androgen and estrogen metabolism. For instance, the enzyme catalyzes the conversion of testosterone into the more potent androgen, 5α-dihydrotestosterone. It can also catalyze the conversion of progesterone, corticosterone or other steroids, to its corresponding 5α-3-oxo-steroids. This chemical reaction is called 5α-reduction, i.e. the reduction of the Δ5-4 double bond in steroids by catalyzing hydride transfer from NADPH to the carbon 5 position of the steroid substrate.

Methyl-CpG-binding domain protein 4; Methyl-CpG-binding endonuclease 1; Methyl-CpG-binding protein MBD4; Mismatch-specific DNA N-glycosylase; MBD4; MED1

Mismatch-specific DNA N-glycosylase involved in DNA repair. Has thymine glycosylase activity and is specific for G:T mismatches within methylated and unmethylated CpG sites. Can also remove uracil or 5-fluorouracil in G:U mismatches. Has no lyase activity. Was first identified as methyl-CpG-binding protein.

1. Andersson, S., Russell, D. W. Structural and biochemical properties of cloned and expressed human and rat steroid 5-alpha-reductases. Proc. Nat. Acad. Sci. 87: 3640-3644, 1990. 2. Cantagrel, V., Lefeber, D. J., Ng, B. G., Guan, Z., Silhavy, J. L., Bielas, S. L., Lehle, L., Hombauer, H., Adamowicz, M., Swiezewska, E., De Brouwer, A. P., Blumel, P., and 13 others. SRD5A3 is required for converting polyprenol to dolichol and is mutated in a congenital glycosylation disorder. Cell 142: 203-217, 2010. 3. Ellis, J. A., Stebbing, M., Harrap, S. B. Genetic analysis of male pattern baldness and the 5-alpha-reductase genes. J. Invest. Derm. 110: 849-853, 1998.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.