Unusual target site disruption by the rare-cutting HNH restriction endonuclease PacI.
Shen, B.W., Heiter, D.F., Chan, S.H., Wang, H., Xu, S.Y., Morgan, R.D., Wilson, G.G., Stoddard, B.L.(2010) Structure 18: 734-743
- PubMed: 20541511 
- DOI: 10.1016/j.str.2010.03.009
- Primary Citation of Related Structures:  
3LDY, 3M7K - PubMed Abstract: 
The crystal structure of the rare-cutting HNH restriction endonuclease PacI in complex with its eight-base-pair target recognition sequence 5'-TTAATTAA-3' has been determined to 1.9 A resolution. The enzyme forms an extended homodimer, with each subunit containing two zinc-bound motifs surrounding a betabetaalpha-metal catalytic site ...