1qxb

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spinqualitylabelsall models PDB ID 1qxb Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image
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NMR structure determination of the self complementary DNA Dodecamer CGCGAATT*CGCG in which a ribose is inserted between the 3'-OH of T8 and the 5'-phosphate group of C9

Overview

A ribose residue inserted between the 3'-OH of one nucleotide and the 5'-phosphate group of the next nucleotide, functions as a site-specific cleavage site within DNA. This extra ribose does not interrupt helix formation and it protects duplex DNA against cleavage by restriction enzymes. Cleavage can be obtained with periodate and all ribose fragments can be removed with sodium hydroxide. As a result of this, an intact natural oligodeoxynucleotide is obtained after ligation reaction, which means that site-specific cleavage and recovering of intact DNA occurs without loss of genetic information.

About this Structure

1QXB is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.

Reference

Cleavage of DNA without loss of genetic information by incorporation of a disaccharide nucleoside., Nauwelaerts K, Vastmans K, Froeyen M, Kempeneers V, Rozenski J, Rosemeyer H, Van Aerschot A, Busson R, Lacey JC, Efimtseva E, Mikhailov S, Lescrinier E, Herdewijn P, Nucleic Acids Res. 2003 Dec 1;31(23):6758-69. PMID:14627809

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