Structures of normal single-stranded DNA and deoxyribo-3'-S-phosphorothiolates bound to the 3'-5' exonucleolytic active site of DNA polymerase I from Escherichia coli.
Brautigam, C.A., Sun, S., Piccirilli, J.A., Steitz, T.A.(1999) Biochemistry 38: 696-704
- PubMed: 9888810 
- DOI: 10.1021/bi981537g
- Primary Citation of Related Structures:  
2KFN, 2KFZ, 2KZM, 2KZZ - PubMed Abstract: 
The interaction of a divalent metal ion with a leaving 3' oxygen is a central component of several proposed mechanisms of phosphoryl transfer. In support of this are recent kinetic studies showing that thiophilic metal ions (e.g., Mn2+) stimulate the hydrolysis of compounds in which sulfur takes the place of the leaving oxygen ...