5'-Phosphate-Binding Sites in Proteins
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چکیده
many enzymic reactions. Almost all these pyridoxal phosphate-dependent enzymes have an absorption band around 415nm, although most of them have higher peaks at 335 nm. The studies made with simple models have shown that the 415nm band is due to a Schiffbase in a hydrophilic medium [structure (I) of Scheme 1] (Matsushima & Martell, 1967). The 335nm band can be assigned either to the structure (II) with an sp2 hybridization on the 4'-carbon atom and the 3-hydroxy group in the phenolic form (Schiff
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تاریخ انتشار 2005