Caffeic acid O-methyltransferase (COMT), an enzyme involved in the methylation of various substrates, plays a pivotal role in plant responses to abiotic stress. The involvement of COMTs in drought response, particularly through the enhancement of lignin and melatonin biosynthesis,...
Significantly improved catalytic efficiency of caffeic acid O -methyltransferase towards N -acetylserotonin by strengthening its interactions with the unnatural substrate’s terminal structureSignificantly improved catalytic efficiency of caffeic acid O -methyltransferase towards N -acetylserotonin by strengthening ...
( 2006 ) Down-regulation of the maize and Arabidopsis thaliana Caffeic acid O -methyltransferase genes by two new maize R2R3-MYB transcription factors . Plant Mol. Biol. 62 , 809 – 823 .Fornalé S , Sonbol FM , Maes T , Capellades M , Puigdomenech P , Rigau J , Caparrós-Ruiz D...
Caffeic acid- O-methyltransferase, activity was assayed in the callus and suspension cultured cells of tobacco. Lignification of cells was observed only in a kinetin (10 −5 M) culture and not in an auxin (10 −6 M 2,4-D or 10 −5 M IBA) culture. Enzyme activity in the kinetin...
Caffeic acid O-methyltransferase (COMT) catalyzes key steps in the biosynthesis of lignin. It can also act as an N-acetylserotonin O-methyltransferase (ASM... S Xu,B Sun,Li, JundeXu, JunyaChen, Wei-KangJiang, YumeiLi, JieZhou, ZheWang, Ren - 《Plant Growth Regulation An International Jou...
O-methylation of benzaldehyde derivatives by lignin specific caffeic acid 3-O-methyltransferase. Phytochemistry 65, 837-846.Kota P., Guo D., Zubieta C., Noel J., Dixon R. A. (2004): O-Methylation of benzaldehyde derivatives by "lignin specific" caffeic acid 3-O-methyltransferase. ...
Caffeic acid O-methyltransferase (COMT) O-methylates at the C5 position of the phenolic ring. COMT is responsible for the biosynthesis of sinapyl alcohol, the precursor of syringyl lignin units. The O-methylation at the C3 position of the phenolic ring involves the Caffeoyl CoA 3-O-...
Here, we employed caffeic acid O-methyltransferase (COMT) instead of ASMT, as COMT is a multifunctional enzyme that has ASMT activity as well. Among several combinations of dual expression cassettes, recombinant E. coli that expressed sheep SNAT with rice COMT produced a high quantity of ...
Functional Analyses of Caffeic Acid O-Methyltransferase and Cinnamoyl-CoA-Reductase Genes from Perennial Ryegrass (Lolium perenne) Cinnamoyl CoA-reductase (CCR) and caffeic acid O-methyltransferase (COMT) catalyze key steps in the biosynthesis of monolignols, which serve as building bl... Y Tu,S ...
259-288). Biosynthesis of the mono- or dimethoxylated lignin precursors occures, in part, by the action of two enzymes, caffeic acid 3-O-methyltransferase (COMT), also known as caffeic acid/5-hydroxyferulic acid O-methyltransferase and caffeoyl CoA 3-O-methyltransferase (CCOMT). Both enzymes...