Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 43:1339-1346 (1968)
© 1968 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (41)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Wilson, C. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Wilson, C. M.
Agricola
Right arrow Articles by Wilson, C. M.
Articles

Plant Nucleases. II. Properties of Corn Ribonucleases I and II and Corn Nuclease I

Curtis M. Wilson

Crops Research Division, Agricultural Research Service, United States Department of Agriculture, University of Illinois, Urbana, Illinois 61801, Department of Agronomy, University of Illinois, Urbana, Illinois 61801

A classification system is presented to distinguish 3 corn nucleases—Ribonuclease I, Ribonuclease II, and Nuclease I—which were described in the first paper of this series. The 2 ribonucleases are specific for RNA, are endonucleases, and liberate purine and pyrimidine cyclic nucleotides from dinucleotide monophosphates as well as from RNA. Ribonuclease I and II hydrolyze the purine cyclic nucleotides to 3'-nucleotides, while Ribonuclease II may also act on the pyrimidine cyclic nucleotides. Ribonuclease II is best characterized by its molecular weight of 17,000, by a higher pH optimum than Ribonuclease I, and by its absorption onto microsomes.

Nuclease I is a partially purified endonuclease which produces 5'-nucleotides from RNA, DNA, and dinucleotide monophosphates. The same enzyme may also be a 3'-nucleotidase.

The corn nucleases were compared with nucleases found in other plant species.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1968 by the American Society of Plant Biologists