Reversible changes of ordered polypeptide structures in oxidized and reduced epimerase.
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چکیده
منابع مشابه
Crystal structures of the oxidized and reduced forms of UDP-galactose 4-epimerase isolated from Escherichia coli.
UDP-galactose 4-epimerase catalyzes the conversion of UDP-galactose to UDP-glucose through a mechanism involving the transient reduction of NAD+. Here we describe the X-ray structures for epimerase complexed with NADH/UDP, and NAD+/UDP, refined to 1.8 and 2.0 angstrom, respectively. The alpha-carbon positions for the two forms of the enzyme are superimposed with a root-mean-square deviation of ...
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Umecyanin (UMC) is a type 1 copper-containing protein which originates from horseradish roots and belongs to the stellacyanin subclass of the phytocyanins, a ubiquitous family of plant cupredoxins. The crystal structures of Cu(II) and Cu(I) UMC have been determined at 1.9 and 1.8 A, respectively. The protein has an overall fold similar to those of other phytocyanins. At the active site the cupr...
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Three-dimensionally ordered macroporous (3DOM) hydrogels prepared by colloidal crystals templating display highly reversible shape memory properties, as confirmed by indirect electron microscopy imaging of their inverse replicas and direct nanoscale resolution X-ray microscopy imaging of the hydrated hydrogels. Modifications of functional groups in the 3DOM hydrogels result in various materials...
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Investigation of the oxidation-reduction potentials of 2-oxy2,3-dihydroindole-3-propionic acid established the fact that the compound in both its reduced and oxidized forms has little effect on the platinum electrode (9). It has the ability, however, to react with dibromoindophenol, with hydrogen dioxide, molecular oxygen, and many other oxidizing agents. Interaction with these compounds produc...
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Investigation of the oxidation-reduction potentials of 2-oxy2,3-dihydroindole-3-propionic acid established the fact that the compound in both its reduced and oxidized forms has little effect on the platinum electrode (9). It has the ability, however, to react with dibromoindophenol, with hydrogen dioxide, molecular oxygen, and many other oxidizing agents. Interaction with these compounds produc...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1968
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.61.2.629