MW 700.8 Da, Purity >98%. Posaconazole is a broad-spectrum, second-generation triazole compound that displays antifungal activity. Posaconazole inhibits the growth of fungi by inhibiting the lanosterol 14α-demethylase enzyme (IC50s range from 7-200 nM), which results in a disruption the synthesis of ergosterol, a key sterol necessary for fungal cell membrane integrity and for the function of certain membrane-bound proteins.
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7-alpha-hydroxy-4-cholesten-3-one 12-alpha-hydroxylase, 7-alpha-hydroxycholest-4-en-3-one 12-alpha-hydroxylase, Albendazole monooxygenase, Albendazole sulfoxidase, CP3A4_HUMAN, CP51, CP51A_HUMAN, CP8B, CP8B1_HUMAN, CYP12, CYP3A4, CYP51, CYP51A1, CYPIIIA3, CYPIIIA4, CYPL1, CYPLI, CYPVIIIB1, Cytochrome P450 3A3, Cytochrome P450 3A4, Cytochrome P450 51, Cytochrome P450 51A1, Cytochrome P450 8B1, Cytochrome P450 HLp, Cytochrome P450 NF-25, Cytochrome P450 family 51 subfamily A member 1, Cytochrome P450 family 51 subfamily A polypeptide 1, Cytochrome P450 subfamily VIIIB (sterol 12 alpha hydroxylase) polypeptide 1, Cytochrome P450, 51 (lanosterol 14 alpha demethylase), Cytochrome P450, family 8, subfamily B, polypeptide 1, Cytochrome P450-14DM, Cytochrome P450-PCN1, Cytochrome P450LI, LDM, Lanosterol 14-alpha demethylase, Nifedipine oxidase, P450 14DM, P450L1, Quinine 3-monooxygenase, Sterol 12-alpha-hydroxylase, Sterol 14-alpha demethylase, Taurochenodeoxycholate 6-alpha-hydroxylase
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Supplementary information
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Biological function summary
These enzymes are so important because they facilitate oxidation reactions that aid in the metabolism and elimination of compounds. CYP3A4 exists in a large enzymatic complex in the endoplasmic reticulum contributing to its broad substrate specificity. CYP51 is involved in the demethylation of lanosterol a step in cholesterol synthesis important for cell membrane integrity. CYP8B1 regulates the synthesis of chenodeoxycholic acid impacting bile acid composition. These activities are critical for maintaining metabolic balance and influencing physiological processes.
Pathways
CYP3A4 and CYP3A5 are major players in the drug metabolism pathway affecting the pharmacokinetics of over half of all processed medications including posaconazole. They work closely with drug transporters and other enzymes in the phase I and II metabolic phases. CYP51A1 functions in the cholesterol biosynthesis pathway working alongside proteins like HMG-CoA reductase. CYP8B1 is involved in the primary bile acid biosynthesis pathway which is important for lipid digestion and absorption.
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