EC Number   |
General Information |
Reference |
|---|
   3.1.1.11 | evolution |
depending on the presence or absence of the PME inhibitor (PMEI) domain at the N-terminus (also known as the PRO region), PMEs are grouped into either type-1 PME (with PMEI domain) or type-2 PME (without PMEI domain), phylogenetic analysis |
751401 |
| 3.1.1.11 | evolution |
in Arabidopsis thaliana, 66 PMEs and a similarly high number of pectin methylesterase inhibitors, PMEIs, have so far been identified |
-, 751100 |
| 3.1.1.11 | evolution |
sequence comparisons of pectinesterase enzymes from Citrus sinensis, Arabidopsis thaliana, and Botrytis cinerea |
-, 750823 |
| 3.1.1.11 | evolution |
the deduced PME-ZJ5A protein structure contains a catalytic domain and a putative N-terminal signal peptide (residues 1-19) of carbohydrate esterase family 8 |
-, 751146 |
| 3.1.1.11 | evolution |
the enzyme belongs to the family 8 of carbohydrate esterases (CE8) of the pectin methylesterase superfamily |
-, 749744 |
| 3.1.1.11 | evolution |
the enzyme belongs to the family of class 8 carbohydrate esterases. PMEs are classified into either Type-1 (with a PMEI domain at the N-terminus) or Type-2 (no PMEI domain). The highest PME activity is detected in samples isolated from green fruits, whereas soluble proteins isolated from green and red fruit possess the lowest PMEI inhibitor activity. Root and stems possess high PME activities, while low activities are detected in leaf tissues, suggesting that vegetative tissues also undergo dynamic pectin modification |
751887 |
| 3.1.1.11 | evolution |
thermostable pectin methylesterase (CtPME) from Clostridium thermocellum belongs to family 8 carbohydrate esterase (CE8) |
-, 751541 |
| 3.1.1.11 | malfunction |
a defect in mucilage extrusion is observed in a PME6 mutant and is shown to be a pleiotropic effect of the changes in embryo. hms-1 Embryo defect phenotype, the embryo cell size is decreased, the hms-1 radicals and cotyledons both have a reduced cell perimeter compared with the wild-type, overview. The PME activity is decreased and the degree of methyl esterification is increased in hms-1 7-DPA mutant seeds |
751875 |
| 3.1.1.11 | malfunction |
Atpme3-1 loss-of-function mutants exhibit phenotypes distinct from the wild-type, and show earlier germination and reduction of root hair production, correlated with the accumulation of a 21.5-kDa protein in the different organs of 4-day-old Atpme3-1 seedlings grown in the dark, as well as in 6-week-old mutant plants. Microarray analysis shows significant downregulation of the genes encoding several pectin-degrading enzymes and enzymes involved in lipid and protein metabolism in the hypocotyl of 4-day-old dark grown mutant seedlings. Accordingly, there is a decrease in proteolytic activity of the mutant as compared with the wild-type. Among the genes specifying seed storage proteins, two encoding cruciferins are upregulated. Overexpression of four cruciferin genes in the mutant Atpme3-1, in which precursors of the alpha- and beta-subunits of CRUCIFERIN accumulate |
-, 751100 |
| 3.1.1.11 | malfunction |
expression analysis of enzyme inhibiting PMEI genes in response to male sterility, overview |
751568 |
