Amine-induced Cleavage of Periodate-oxidized Nucleotide Residues

Amine-induced cleavage of periodate-oxidized nucleotide residues.

Nucleotide Sequence Analysis of Polyribonucleotides by Means of Periodate Oxidation Followed by Cleavage with an Amine.

Whitfeld and Markham (1) described a method for the stepwise degradation of polyribonucleotides which involved oxidation of the vicinal hydroxyl groups of the terminal nucleoside residue to a dialdehyde by means of periodate, followed by treatment with glycine at pH 10.5 to remove the terminal base. In this way they converted GpC to 3’-GNP and cytosine. A similar procedure was applied to 5’-AMP...

Mechanism of coupling periodate-oxidized nucleosides to proteins.

This paper describes a mechanism of coupling periodate-oxidized nucleosides to proteins. Each of the dialdehyde groups of a periodate-oxidized nucleoside is shown to couple to lysine residues on different protein molecules through Schiff bases, thereby cross-linking different protein molecules, forming a polymer. This is in contrast to the previous model in which nucleosides were suggested to c...

Periodate Oxidation of Methylcellulose: Characterization and Properties of Oxidized Derivatives

In this paper, the behavior of oxidized methylcelluloses is compared with that of the initial methylcellulose, an amphiphilic cellulose derivative. Methylcelluloses are important for many applications in the cosmetic and food industries. The mechanism of thermo-gelation of methylcellulose is briefly explained as well as the method of oxidation of polysaccharides. Then, our experiments involve t...

Structure and function of human hemoglobin covalently labeled with periodate-oxidized adenosine triphosphate.

Periodate-oxidized adenosine triphosphate (o-ATP), a ribose ring-opened dialdehyde derivative of ATP, reacts specifically with human deoxyhemoglobin to give a single major covalently modified product after reduction with sodium borohydride. This product, designated di-ATP Hb, was isolated using ion-exchange chromatography and shown to have incorporated two molecules of o-ATP/tetramer. Peptide m...