Structure of Taq ploymerase with DNA at the polymerase active site.
Eom, S.H., Wang, J., Steitz, T.A.(1996) Nature 382: 278-281
- PubMed: 8717047 
- DOI: 10.1038/382278a0
- Primary Citation of Related Structures:  
1TAU - PubMed Abstract: 
The DNA polymerase from Thermus aquaticus (Taq polymerase) is homologous to Escherichia coli DNA polymerase I (Pol I) and likewise has domains responsible for DNA polymerase and 5' nuclease activities. The structures to the polymerase domains of Taq polymerase and of the Klenow fragment (KF) of Pol I are almost identical, whereas the structure of a vestigial editing 3'-5' exonuclease domain of Taq polymerase that lies between the other two domains is dramatically altered, resulting in the absence of this activity in the thermostable enzyme ...