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Nuclease Rsn from Rhizopus stolonifer: specificity and mode of action

Authors :
V Shankar
E.S Rangarajan
Source :
Biochemical and Biophysical Research Communications. 317:265-268
Publication Year :
2004
Publisher :
Elsevier BV, 2004.

Abstract

Nuclease Rsn from Rhizopus stolonifer catalyzes the hydrolysis of ss- and dsDNA in a ratio of approximately 2:1. Time course of 3 ′ and 5 ′ terminal analysis of the hydrolytic products of ss- and dsDNA showed that nuclease Rsn does not show any strict base preference and cleaves DNA in a non-specific manner. Moreover, separation of the hydrolytic products of ss- and dsDNA in the presence of Mg 2+ , Mn 2+ or Co 2+ showed the predominance of tetra-, tri-, and dinucleotides followed by mononucleotides, suggesting an endo mode of action.

Details

ISSN :
0006291X
Volume :
317
Database :
OpenAIRE
Journal :
Biochemical and Biophysical Research Communications
Accession number :
edsair.doi.dedup.....ad36c07ca3d165a426b9a580100f79dd
Full Text :
https://doi.org/10.1016/j.bbrc.2004.03.045