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[Bsp153AI and BspM39I--new isoschizomers of PvuII restriction enzyme]
A A Kalugin1, M Rina, M A El'darov
1Institute of Molecular Biology and Biotechnology, Crete, Greece.
Bioorganicheskaia Khimiia
|February 1, 1996
Abstract:
New restriction endonucleases, Bsp153AI and BspM39I, were isolated from Bacillus species strains 153A and M39, respectively. The enzymes recognize and cleave the nucleotide sequence [sequence: see text] and are true isoschizomers of restriction endonuclease PvuII.
Insights
Two novel restriction enzymes, Bsp153AI and BspM39I, were discovered from Bacillus species. These enzymes are isoschizomers of PvuII, recognizing the same DNA sequence for cleavage.
Area of Science:
- Molecular Biology
- Enzymology
- Microbiology
Background:
- Restriction endonucleases are crucial tools in molecular biology for DNA manipulation.
- Identifying novel enzymes expands the toolkit for genetic engineering and research.
Purpose of the Study:
- To isolate and characterize new restriction endonucleases from Bacillus species.
- To determine the DNA recognition and cleavage specificities of the novel enzymes.
- To compare the novel enzymes with known restriction endonucleases.
Main Methods:
- Isolation of bacterial strains Bacillus 153A and M39.
- Purification and characterization of enzymatic activity.
- DNA sequence recognition and cleavage site mapping.
Main Results:
- Successful isolation of two novel restriction endonucleases: Bsp153AI and BspM39I.
- Both enzymes recognize and cleave the specific DNA sequence [sequence: see text].
- Bsp153AI and BspM39I were confirmed as true isoschizomers of the PvuII restriction enzyme.
Conclusions:
- The discovery of Bsp153AI and BspM39I adds new enzymes to the repertoire of restriction endonucleases.
- These enzymes offer alternative or complementary tools for DNA analysis and manipulation, particularly those requiring PvuII-like activity.