Recent Publications from Champoux Lab

 

Redinbo, M. R., Stewart, L., Kuhn, P., Champoux, J. J. and Hol, W. G. J. (1998).  Crystal Structures of Human Topoisomerase I in Covalent and Noncovalent Complexes with DNA.  Science 279:1504-1513.

 

Stewart, L., Redinbo, M. R., Qiu, X., Hol, W. G. J. and Champoux, J. J. (1998).  A Model For the Mechanism of Human Topoisomerase I.  Science 279:1534-1541.

 

Kelleher, C. D. and Champoux, J. J. (1998).  Characterization of RNA Strand Displacement Synthesis by Moloney Murine Leukemia Virus Reverse Transcriptase. J.  Biol. Chem. 273:9976-9986.

 

Whiting, S. H. and Champoux, J. J. (1998).  Properties of Strand Displacement Synthesis by Moloney Murine Leukemia Virus Reverse Transcriptase:  Mechanistic Implications.  J. Mol. Biol. 278:559-577.

 

Schultz, S. J., Zhang, M., Kelleher, C. D. and Champoux, J. J. (1999).  Polypurine Tract Generation and Utilization by Moloney Murine Leukemia Virus Reverse Transcriptase.  J. Biol. Chem. 274:34547-34555.

 

Kelleher, C. D. and Champoux, J. J. (2000).  RNA Degradation and Primer Selection by Moloney Murine Leukemia Virus Reverse Transcriptase Contribute to the Accuracy of Plus-Strand Initiation.  J. Biol. Chem. 275:13061-13070.

 

Redinbo, M. R., Champoux, J. J. and Hol, W. G.  J. (2000).  Novel Insights into Catalytic Mechanism from a Crystal Structure of Human Topoisomerase I in Complex with DNA.  Biochemistry 39:6832-6840.

 

Ireton, G. C., Stewart, L., Parker, L. H. and Champoux, J. J. (2000).  Expression of Human Topoisomerase I With a Partial Deletion of the Linker Region Yields Monomeric and Dimeric Enzymes That Respond Differently to Camptothecin.  J. Biol. Chem. 275:25820-25830.

 

Schultz, S. J., Zhang, M., Kelleher, C. D. and Champoux, J. J. (2000).  Analysis of Plus-Strand Primer Selection, Removal, and Re-Utilization by Retroviral Reverse Transcriptases.  J. Biol. Chem. 275:32299-32309.

 

Yang, Z. and Champoux, J. J. (2001).  The Role of Histidine 632 in Catalysis by Human Topoisomerase I.  J. Biol. Chem. 276:677-685.

 

Winshell, J. and Champoux, J. J. (2001).  Structural Alterations in the DNA Ahead of the Primer Terminus During Displacement Synthesis by Reverse Transcriptases.  J. Mol. Biol. 306:931-943.

 

Champoux, J. J. (2001). DNA Topoisomerases: Structure, Function and Mechanism.  Annu. Rev. Biochem. 70:369-413.

 

Interthal, H., Pouliot, J. J. and Champoux, J. J.  (2001). The Tyrosyl-DNA Phosphodiesterase Tdp1 is a Member of the Phospholipase D Superfamily.  Proc. Natl. Acad. Sci. USA 98:12009-12014.

 

Davies, D. R., Interthal, H., Champoux, J. J., and Hol, W. G. J. (2002).  The Crystal Structure of Human Tyrosyl-DNA Phosphodiesterase, Tdp1.  Structure 10:237-248.

 

Champoux, J. J. (2002).  A First View of the Structure of a Type IA Topoisomerase with Bound DNA. Trends in Pharmacol. Sci. 23:199-201.

 

Yang, Z. and Champoux, J. J. (2002).  Reconstitution of Enzymatic Activity by the Association of the Cap and Catalytic Domains of Human Topoisomerase I.  J. Biol. Chem. 277:30815-30823.

 

Champoux, J. J. (2002).  Commentary—Type IA DNA Topoisomerases:  Strictly One Step at a Time.  Proc. Natl. Acad. Sci. USA 99:11998-2000.

 

Davies, D. R., Interthal, H., Champoux, J. J. and Hol, W. G. J. (2002).  Insights into Substrate Binding and Catalytic Mechanism of Human Tyrosyl DNA Phosphodiesterase (Tdp1) from Vanadate- and Tungstate-Inhibited Structures.  J. Mol. Biol. 324:917-932.

 

Davies, D. R., Interthal, H., Champoux J. J. and Hol, W. G. J. (2003). Crystal Structure of a Transition State Mimic for Tyrosyl-DNA Phosphodiesterase (Tdp1) Assembled From Vanadate, DNA and a Topoisomerase I-Derived Peptide.  Chemistry and Biology 10:139-147.

 

Schultz, S. J., Zhang, M. and Champoux, J. J. (2003).  Specific Cleavages by RNase H Facilitate Initiation of Plus-Strand RNA Synthesis by Moloney Murine Leukemia Virus.   J. Virol. 77:5275-5285.

 

Carey, J. F., Schultz, S. J., Sisson, L., Fazzio, T. G. and Champoux, J. J. (2003).  DNA Relaxation by Human Topoisomerase I Occurs in the Closed Clamp Conformation of the Protein.  Proc. Natl. Acad. Sci. USA.  100:5640-5645.

 

Interthal, H., Quigley, P. M., Hol, W.G. J., and Champoux, J. J. (2004).  The Role of Lysine 532 in the Catalytic Mechanism of Human Topoisomerase I.  J. Biol. Chem. 279:2984-2992.

 

Davies, D. R., Interthal, H., Champoux, J. J., and Hol, W. G. J. (2004).  Explorations of Peptide and Oligonucleotide Binding Sites of Tyrosyl-DNA Phosphodiesterase (Tdp1) Using Vanadate Complexes.  J. Med. Chem. 47:829-837.

 

 

 

 

 

 

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