Volume 39, Issue 20 pp. 3641-3643
Communication

Catalyst for DNA Ligation: Towards a Two-Stage Replication Cycle

Jingdong Ye

Jingdong Ye

Departments of Chemistry and Biology, Emerson Hall Emory University, Atlanta, GA 30322 (USA) Department of Chemistry University of Chicago Chicago, IL 60637 Fax: (+1) 404-727-9348

Search for more papers by this author
Yahaloma Gat

Yahaloma Gat

Departments of Chemistry and Biology, Emerson Hall Emory University, Atlanta, GA 30322 (USA) Department of Chemistry University of Chicago Chicago, IL 60637 Fax: (+1) 404-727-9348

Search for more papers by this author
David G. Lynn

David G. Lynn

Departments of Chemistry and Biology, Emerson Hall Emory University, Atlanta, GA 30322 (USA) Department of Chemistry University of Chicago Chicago, IL 60637 Fax: (+1) 404-727-9348

Search for more papers by this author

We are grateful to Paul Gardner for assistance with solid-phase synthesis and the NIH (R21 RR12723) for support.

Abstract

Modification of the DNA backbone by replacement of a single phosphate with an alkylamine is shown to generate a selective ligation catalyst. Related backbone modifications can be chemically read from a complementary DNA sequence. With this demonstration, it now appears possible to generate a two-stage replication cycle (see scheme), a simplified version of the biological three-stage DNA–RNA–protein cycle necessary for biological replication.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.