The interaction of the Eco R1 restriction enzyme E.coli with nucleotides
Abstract
The Eco R1 restriction enzyme can be shown to be inhibited by nucleotides which correspond to any part of its known site of phosphodiesterase activity. A series of di-, tetra-, and hexa-nucleotide fragments were synthesized and their effect on the activity of the enzyme upon superhelical Co1 E1 DNA studied. The inhibition caused by the individual mononucleotides were also studied. In general all the nucleotide fragments showed some form of interaction with the enzyme system. Tetranucleotides were stronger inhibitors than dinucleotides, which in turn were stronger inhibitors than the mononucleotides. Within each category of inhibitors, those containing the phosphodiester bond which is acted upon by the enzyme were the strongest inhibitors. Only those fragments which were consistent with the enzymes site of activity showed competitive inhibition kinetics. Nucleotides which do not fit within the site of phosphodiesterase activity show non-competitive inhibition kinetics.
- Authors:
-
- Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1022106
- Report Number(s):
- LBL-8484
TRN: US201118%%311
- DOE Contract Number:
- AC02-05CH11231
- Resource Type:
- Thesis/Dissertation
- Resource Relation:
- Related Information: Designation of Academic Dissertation: Doctoral; Academic Degree: Ph. D.; Name of Academic Institution: University of California Berkeley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 60 APPLIED LIFE SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; DNA; ENZYME INHIBITORS; ENZYMES; INHIBITION; KINETICS; NUCLEOTIDES; PHOSPHODIESTERASES
Citation Formats
Hollis, Donald F. The interaction of the Eco R1 restriction enzyme E.coli with nucleotides. United States: N. p., 1979.
Web. doi:10.2172/1022106.
Hollis, Donald F. The interaction of the Eco R1 restriction enzyme E.coli with nucleotides. United States. doi:10.2172/1022106.
Hollis, Donald F. Thu .
"The interaction of the Eco R1 restriction enzyme E.coli with nucleotides". United States.
doi:10.2172/1022106. https://www.osti.gov/servlets/purl/1022106.
@article{osti_1022106,
title = {The interaction of the Eco R1 restriction enzyme E.coli with nucleotides},
author = {Hollis, Donald F.},
abstractNote = {The Eco R1 restriction enzyme can be shown to be inhibited by nucleotides which correspond to any part of its known site of phosphodiesterase activity. A series of di-, tetra-, and hexa-nucleotide fragments were synthesized and their effect on the activity of the enzyme upon superhelical Co1 E1 DNA studied. The inhibition caused by the individual mononucleotides were also studied. In general all the nucleotide fragments showed some form of interaction with the enzyme system. Tetranucleotides were stronger inhibitors than dinucleotides, which in turn were stronger inhibitors than the mononucleotides. Within each category of inhibitors, those containing the phosphodiester bond which is acted upon by the enzyme were the strongest inhibitors. Only those fragments which were consistent with the enzymes site of activity showed competitive inhibition kinetics. Nucleotides which do not fit within the site of phosphodiesterase activity show non-competitive inhibition kinetics.},
doi = {10.2172/1022106},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 01 00:00:00 EST 1979},
month = {Thu Nov 01 00:00:00 EST 1979}
}
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