Structure of large fragment of Escherichia coli DNA polymerase I complexed with dTMP.
Ollis, D.L., Brick, P., Hamlin, R., Xuong, N.G., Steitz, T.A.(1985) Nature 313: 762-766
- PubMed: 3883192
- DOI: https://doi.org/10.1038/313762a0
- Primary Citation of Related Structures:
1DPI - PubMed Abstract:
The 3.3-A resolution crystal structure of the large proteolytic fragment of Escherichia coli DNA polymerase I complexed with deoxythymidine monophosphate consists of two domains, the smaller of which binds zinc-deoxythymidine monophosphate. The most striking feature of the larger domain is a deep crevice of the appropriate size and shape for binding double-stranded B-DNA. A flexible subdomain may allow the enzyme to surround completely the DNA substrate, thereby allowing processive nucleotide polymerization without enzyme dissociation.