Given the metabolic cost of manufacturing ectoenzymes, regulation is theorized to be tightly controlled by both the availability of target substrates for hydrolysis and the scarcity of other more labile compounds to fuel productivity (Chrost 1989).
The substrates for these ectoenzymes were leucine--methylcoumarynyl (MCA)--amide, methylumbelliferyl (MUF)-D-[micro]Lucoside, MUF-N-acetyl-D-glucosaminide, and MUF-oleate, respectively.
Trehalase is an ectoenzyme
that is linked to membrane by a glycosylphosphatidylinositol anchor, and excretion of the enzyme can be influenced by renal injuries.
In fact, Cell wall degradation occurs not in the immediate vicinity of the hyphal sheath or out of the lumen (fig 1-8), but the ectoenzymes
of the brown rot fungi must first diffuse very deeply into the cell wall through the S3 layer, to degrade the cellulose-rich S2 layer.
They produced tadpoles with eyes in their sides, abdomens and tails by judicious use of the right ectoenzymes
Prof Nicholas Dale of Warwick University was studying how frogs move when he put ectoenzymes
into embryos which grew several eyes.
1, ACE), acting as ectoenzymes
on the outer surface of different cells and included in the metabolism of regulatory peptides, like substance P, bradykinin, enkephalins, natriuretic peptides and other vasoactive hormonal peptides (Hooper, 1996).