reductases

1. Tuberostemonine (Tuberstemonine) exhibits relatively higher intestinal permeabilities. 2. Tuberostemonine acts in part as an open-channel blocker at the crayfish neuromuscular junction.

Meglutol (3-Hydroxy-3-methylglutaric acid) is an antilipemic agent which lowers cholesterol, triglycerides, serum beta-lipoproteins and phospholipids. It acts by interfering with the enzymatic steps involved in the conversion of acetate to hydroxymethyl glutaryl coenzyme A as well as inhibiting the activity of HYDROXYMETHYLGLUTARYL COA REDUCTASES which is the rate-limiting enzyme in the biosynthesis of cholesterol.

2'-Deoxyadenosine-5'-triphosphate (dATP) is a purine nucleotide and derivative of the nucleic acid adenosine 5'-triphosphate .1dATP is a substrate for DNA polymerase in the synthesis of DNA.2It is a noncompetitive inhibitor of ribonucleotide reductases, which provides feedback inhibition during DNA synthesis.1dATP has commonly been used in DNA synthesis, sequencing, and labeling in research applications.3,4dATP accumulates in adenosine deaminase deficiency, a disorder characterized by mutations in the gene for adenosine deaminase, the enzyme that catalyzes the deamination of adenosine and deoxyadenosine.5 1.Berg, J.M., Tymoczko, J.L., and Stryer, L.Key steps in nucleotide biosynthesis are regulated by feedback inhibitionBiochemistry(2002) 2.Berg, J.M., Tymoczko, J.L., and Stryer, L.DNA is replicated by polymerases that take instructions from templatesBiochemistry(2002) 3.Cadwell, R.C., and Joyce, G.F.Randomization of genes by PCR mutagenesisPCR Methods Appl.2(1)28-33(1992) 4.Steffens, D.L., Jang, G.Y., Sutter, S.L., et al.An infrared fluorescent dATP for labeling DNAGenome Res.5(4)393-399(1995) 5.Flinn, A.M., and Gennery, A.R.Adenosine deaminase deficiency: A reviewOrphanet J. Rare Dis.13(1)65(2018)