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3.) Isoenzymes of alkaline phosphatase: [7] Six isoenzymes have been identified. The enzyme is a monomer, the isoenzymes are due to the differences in the carbohydrate content (sialic acid residues). The most important ALP isoenzymes are α 1-ALP, α 2-heat labile ALP, α 2-heat stable ALP, pre-β ALP and γ-ALP.
FMO3 is the main flavin-containing monooxygenase isoenzyme that is expressed in the liver of adult humans. [ 8 ] [ 9 ] [ 10 ] The human FMO3 enzyme catalyzes several types of reactions, including: the N -oxygenation of primary, secondary, and tertiary amines ; [ 9 ] [ 11 ] the S -oxygenation of nucleophilic sulfur -containing compounds; [ 9 ...
Hexokinases I, II, and III are referred to as low-K m isoenzymes because of a high affinity for glucose (below 1 mM). Hexokinases I and II follow Michaelis-Menten kinetics at physiological concentrations of substrates. [citation needed] All three are strongly inhibited by their product, glucose-6-phosphate. Molecular masses are around 100 kDa ...
Enolase 1 (ENO1), more commonly known as alpha-enolase, is a glycolytic enzyme expressed in most tissues, one of the isozymes of enolase.Each isoenzyme is a homodimer composed of 2 alpha, 2 gamma, or 2 beta subunits, and functions as a glycolytic enzyme.
Several isozymes are encoded by different genes, which vary in cellular location and substrate specificity. Glutathione peroxidase 1 (GPx1) is the most abundant version, found in the cytoplasm of nearly all mammalian tissues, whose preferred substrate is hydrogen peroxide.
Phosphoinositide phospholipase C (PLC, EC 3.1.4.11, triphosphoinositide phosphodiesterase, phosphoinositidase C, 1-phosphatidylinositol-4,5-bisphosphate phosphodiesterase, monophosphatidylinositol phosphodiesterase, phosphatidylinositol phospholipase C, PI-PLC, 1-phosphatidyl-D-myo-inositol-4,5-bisphosphate inositoltrisphosphohydrolase; systematic name 1-phosphatidyl-1D-myo-inositol-4,5 ...
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IV. Purification and properties of the phenylalanine deaminase of Hordeum vulgare" (PDF). The Journal of Biological Chemistry. 236 (10): 2692– 8. doi: 10.1016/S0021-9258(19)61721-7. PMID 14458851. Young MR, Neish AC (1966). "Properties of the ammonia-lyases deaminating phenylalanine and related compounds in Triticum sestivum and Pteridium ...