PMID: 2497780Jun 1, 1989Paper

Nucleoside 5'-triphosphates modified at sugar residues as substrates for DNA polymerase from the thermoacidophilic archaebacterium Sulfolobus acidocaldarius

Biochimica Et Biophysica Acta
D Z ChinchaladzeA A Krayevsky

Abstract

The ability of a wide variety of nucleoside 5'-triphosphates with modified sugar moiety to serve as substrates in DNA synthesis catalyzed by DNA polymerase A from the archaebacterium Sulfolobus acidocaldarius was studied. Most of the dNTP analogs tested are shown to be specific terminating substrates for the synthesis irreversibly blocking further elongation of a nascent chain. The most powerful inhibitors were found to be 3'-amino derivatives of deoxy and arabino nucleoside triphosphates, while specific reverse transcriptase inhibitors, 3'-azido and 3'-methoxy derivatives of dNTP, were found to be inactive.

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