x-isoform

N-desmethyl Rosuvastatin is an active metabolite of the HMG-CoA reductase inhibitor rosuvastatin .1,2N-desmethyl Rosuvastatin is formed when rosuvastatin undergoes demethylation, primarily by the cytochrome P450 (CYP) isoform CYP2C9 and to a lesser extent by CYP2C19 and CYP3A4.1 1.Macwan, J.S., Ionita, I.A., and Akhlaghi, F.A simple assay for the simultaneous determination of rosuvastatin acid, rosuvastatin-5S-lactone, and N-desmethyl rosuvastatin in human plasma using liquid chromatography-tandem mass spectrometry (LC-MS/MS)Anal. Bioanal. Chem.402(3)1217-1227(2012) 2.Bai, X., Wang, X.P., He, G.D., et al.Simultaneous determination of rosuvastatin, rosuvastatin-5 S-lactone, and N-desmethyl rosuvastatin in human plasma by UPLC-MS/MS and its application to clinical studyDrug Res. (Stuttg.)68(6)328-334(2018)

Celecoxib carboxylic acid is an inactive metabolite of the COX-2 inhibitor celecoxib .1,2It is formed from celecoxib primarily by the cytochrome P450 (CYP) isoform CYP2C9. 1.Liu, H., Huang, X., Shen, J., et al.Inhibitory mode of 1,5-diarylpyrazole derivatives against cyclooxygenase-2 and cyclooxygenase-1: Molecular docking and 3D QSAR analysesJ. Med. Chem.45(22)4816-4827(2002) 2.Kim, S.-H., Kim, D.-H., Byeon, J.-Y., et al.Effects of CYP2C9 genetic polymorphisms on the pharmacokinetics of celecoxib and its carboxylic acid metaboliteArch. Pharm. Res.40(3)382-390(2017)

Desmethyl ranolazine is a metabolite of the antianginal agent ranolazine .1It is formed from ranolazine by the cytochrome P450 (CYP) isoform CYP3A. 1.Wang, Y., Chen, X., Sun, Z., et al.Development and validation of a sensitive LC-MS/MS assay for simultaneous quantitation of ranolazine and its three metabolites in human plasmaJ. Chromatogr. B889-89010-16(2012)

Binucleine 2 is an isoform-specific and ATP-competitive inhibitor of Drosophila Aurora B kinase (Ki = 0.36 μM), a kinase involved in cell division. It is specific for Drosophila Aurora B kinase, inhibiting it in a dose-dependent manner, with minimal inhibition of human or X. laevis Aurora B kinases at concentrations up to 100 μM. Binucleine 2 induces mitotic and cytokinesis defects in Drosophila Kc167 cells. It prevents Drosophila S2 cells from assembling a contractile ring during cell division when used at a concentration of 40 μM but does not affect ring ingression, suggesting that Aurora B kinase activity is not required for that step.

TTA-A2 是一种选择性 T 型钙通道拮抗剂，是一种有效的抗惊厥药，可减少孕烷 X 受体的激活。它对 Cav3.1 (a1G) 和 Cav3.2 (a1H) 通道在 -80 mV 和- 100 mV 保持电位上具有同样的作用，IC50 值分别为 89 和 92 nM。它可用于多种人类神经系统疾病的研究，包括睡眠障碍和癫痫。