Amino Acids (AA)

<p>Z-Phe-Cit-AMC is a fluorescent substrate for the enzymes cysteine and peptide aminopeptidases. It has been synthesized by conjugating 7-amino-4-methylcoumarin with L-phenylalanine. The product is useful in assays to measure the activity of these enzymes, which are involved in protein digestion and wound healing. Z-Phe-Cit-AMC can be hydrolyzed by bromelain, ficin, or papain and it can be used as a substrate for enzyme reactions.</p>

<p>Perfluoro-N-(4-methylcyclohexyl)piperidine (4-FPP) is a fluorine compound that has been shown to inhibit the enzymatic activity of tyrosine kinases. It is a potent inhibitor of both human and murine tyrosine kinases, but it does not bind to bacterial tyrosine kinase domains. 4-FPP has been used in clinical studies as an anti-cancer drug, although it's clinical relevance remains unclear. It has also been shown to be effective against the influenza virus by inhibiting the synthesis of viral proteins that are involved in replication. The chemical structure of 4-FPP contains a carbonyl group that can react with other compounds through a photochemical process. This reaction is thought to result in the development of new drugs with similar biochemical properties to 4-FPP.</p>