Reasons and limits of substrate activity of modified L-dNTP in DNA biosynthesis. 1999

A A Krayevsky, and N B Dyatkina, and D G Semizarov, and L S Victorova, and E A Shirokova, and F Theil, and M J Von Janta Lipinski, and G Gosselin, and J L Imbach
Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, Russia.

Theoretical and experimental analysis of interaction of modified D- and L- dNTP as substrates for template-dependent and template-independent DNA polymerases was performed. It is shown that if the modified nucleoside 5'-triphosphates do not contain a substituent in position 3' DNA chains can be extended by both strereoisomeric series with the same kinetic parameters. But the presence of even a 3'-hydroxy group in L-dNTP prevents their incorporation into the DNA chain.

UI MeSH Term Description Entries
D009711 Nucleotides The monomeric units from which DNA or RNA polymers are constructed. They consist of a purine or pyrimidine base, a pentose sugar, and a phosphate group. (From King & Stansfield, A Dictionary of Genetics, 4th ed) Nucleotide
D004261 DNA Replication The process by which a DNA molecule is duplicated. Autonomous Replication,Replication, Autonomous,Autonomous Replications,DNA Replications,Replication, DNA,Replications, Autonomous,Replications, DNA
D013379 Substrate Specificity A characteristic feature of enzyme activity in relation to the kind of substrate on which the enzyme or catalytic molecule reacts. Specificities, Substrate,Specificity, Substrate,Substrate Specificities

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