Early occurrence of caffeoylshikimic acid esterase (CSE) activity in the hornwort Anthoceros agrestis.

ABSTRACT:

Main conclusion

The hornwort Anthoceros agrestis harbors a caffeoylshikimate esterase (CSE) displaying esterase activities with various caffeoyl- and 4-coumaroyl esters as well as lipase activity with the surrogate substrate 4-nitrophenyl butyrate. Caffeoylshikimic acid esterase (CSE) is an enzyme of the monoacylglycerol lipase (MAGL) family shown to be involved in monolignol biosynthesis and thus has importance for lignification. To date, active CSEs have only been found in seed plants. A protein (AaCSE1) from the hornwort Anthoceros agrestis with 51.5% identity to the respective CSE sequence from Arabidopsis thaliana (AtCSE, At1g52760) displayed esterase activity with caffeoyl-5-O-shikimic acid as well as its 3-O- and 4-O-regioisomers. Chlorogenic acid (caffeoyl-5-O-quinic acid)

SUBMITTER: Marks J 

PROVIDER: S-EPMC12774947 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature