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where n is the number of monomers in the polymer chain, though a trace amount of the PET breaks down instead to bis(2-hydroxyethyl) terephthalate (BHET). [1] PETases can also break down PEF-plastic ( polyethylene-2,5-furandicarboxylate ), which is a bioderived PET replacement, into the analogous MHEF .
Enzyme activity is a measure of the quantity of active enzyme present and is thus dependent on various physical conditions, which should be specified. It is calculated using the following formula: a = n t = r × V {\displaystyle \mathrm {a} =\mathrm {n} _{\text{t}}=\mathrm {r} \times \mathrm {V} }
Hexosaminidase (EC 3.2.1.52, β-acetylaminodeoxyhexosidase, N-acetyl-β-D-hexosaminidase, N-acetyl-β-hexosaminidase, N-acetyl hexosaminidase, β-hexosaminidase, β-acetylhexosaminidinase, β-D-N-acetylhexosaminidase, β-N-acetyl-D-hexosaminidase, β-N-acetylglucosaminidase, hexosaminidase A, N-acetylhexosaminidase, β-D-hexosaminidase) is an enzyme involved in the hydrolysis of terminal N ...
The enzyme then catalyzes the chemical step in the reaction and releases the product. This work was further developed by G. E. Briggs and J. B. S. Haldane, who derived kinetic equations that are still widely used today. [69] Enzyme rates depend on solution conditions and substrate concentration. To find the maximum speed of an enzymatic ...
CYP2E1 enzyme metabolizes mostly small, polar molecules, including toxic laboratory chemicals such as dimethylformamide, aniline, and halogenated hydrocarbons (see table below). While these oxidations are often of benefit to the body, certain carcinogens and toxins are bioactivated by CYP2E1, implicating the enzyme in the onset of ...
The hydrolysis of a protein (red) by the nucleophilic attack of water (blue). The uncatalysed half-life is several hundred years. Proteolysis is the breakdown of proteins into smaller polypeptides or amino acids.
The biochemical pathways required to utilize glucose as a carbon and energy source are highly conserved from bacteria to humans. PGM1 is an evolutionarily conserved enzyme that regulates one of the most important metabolic carbohydrate trafficking points in prokaryotic and eukaryotic organisms, catalyzing the bi-directional interconversion of glucose 1-phosphate (G-1-P) and glucose 6-phosphate ...
The enzyme unit, or international unit for enzyme (symbol U, sometimes also IU) is a unit of enzyme's catalytic activity. [ 1 ] 1 U (μmol/min) is defined as the amount of the enzyme that catalyzes the conversion of one micro mole of substrate per minute under the specified conditions of the assay method .