Crystal structure of DNA sequence specificity subunit of a type I restriction-modification enzyme and its functional implications.
Kim, J.S., Degiovanni, A., Jancarik, J., Adams, P.D., Yokota, H., Kim, R., Kim, S.H.(2005) Proc Natl Acad Sci U S A 102: 3248-3253
- PubMed: 15728358 
- DOI: 10.1073/pnas.0409851102
- Primary Citation of Related Structures:  
1YF2 - PubMed Abstract: 
Type I restriction-modification enzymes are differentiated from type II and type III enzymes by their recognition of two specific dsDNA sequences separated by a given spacer and cleaving DNA randomly away from the recognition sites. They are oligomeric proteins formed by three subunits: a specificity subunit, a methylation subunit, and a restriction subunit ...