ISSN:
1608-3245
Keywords:
intein
;
protein–nucleic acid interaction
;
DNA binding
;
DNA bending
;
phosphodiester bond cleavage
;
mechanism
;
site-directed mutagenesis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract We have carried out an extensive mutational analysis of PI-SceI, the best studied intein-like homing endonuclease of the LAGLIDADG family, to find out which amino acid residues are involved in substrate binding and processing. Our analysis was focused on domain I, in which two regions were shown to be in contact with DNA, and on domain II, in which the amino acid residues making up catalytic centers I and II were identified and their role in catalysis investigated. As a result of our comprehensive mutational analysis a model is presented for DNA binding and cleavage by PI-SceI.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1026636011589
Permalink