Article
A novel mutant of the type I restriction-modification enzyme EcoR124I is altered at a key stage of the subunit assembly pathway.
Journal of molecular biology - 1 Dec 2000
Weiserova M, Dutta C F, Firman K
Abstract excerpt
The HsdS subunit of a type I restriction-modification (R-M) system plays an essential role in the activity of both the modification methylase and the restriction endonuclease. This subunit is responsible for DNA binding, but also contains conserved amino acid sequences responsible for protein-protein interactions. The most important protein-protein interactions are those between the HsdS subunit and the HsdM...
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