Volume 81, Issue 4 pp. 138-145
research communications

Analysis of Burkholderia pseudomallei IspF in complex with sulfapyridine, sulfamonomethoxine, ethoxzolamide and acetazolamide

Dakota Grote

Dakota Grote

Northern Illinois University, Department of Chemistry and Biochemistry, 1425 Lincoln Highway, DeKalb, IL, 60115 USA

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Christopher G. Stewart

Christopher G. Stewart

Northern Illinois University, Department of Chemistry and Biochemistry, 1425 Lincoln Highway, DeKalb, IL, 60115 USA

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Drashti G. Daraji

Drashti G. Daraji

Northern Illinois University, Department of Chemistry and Biochemistry, 1425 Lincoln Highway, DeKalb, IL, 60115 USA

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Parisa Enayati

Parisa Enayati

Northern Illinois University, Department of Chemistry and Biochemistry, 1425 Lincoln Highway, DeKalb, IL, 60115 USA

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Kristina N. Braverman

Kristina N. Braverman

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

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CeAnn Romanaggi

CeAnn Romanaggi

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

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Madison J. Bolejack

Madison J. Bolejack

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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Jason K. Yano

Jason K. Yano

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

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Jan Abendroth

Jan Abendroth

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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David M. Dranow

David M. Dranow

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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Phillip G. Pierce

Phillip G. Pierce

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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Donald D. Lorimer

Donald D. Lorimer

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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Peter S. Horanyi

Peter S. Horanyi

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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Bart L. Staker

Bart L. Staker

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

Seattle Children's Research Institute, Center for Global Infectious Disease Research, 307 Westlake Avenue North, Seattle, WA, 98109 USA

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Thomas E. Edwards

Thomas E. Edwards

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

UCB Biosciences, Bainbridge Island, WA, 98110 USA

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Peter J. Myler

Corresponding Author

Peter J. Myler

Seattle Structural Genomics Center for Infectious Disease (SSGCID), Seattle, WA, 98109 USA

Seattle Children's Research Institute, Center for Global Infectious Disease Research, 307 Westlake Avenue North, Seattle, WA, 98109 USA

University of Washington, Departments of Pediatrics, Biomedical Informatics and Medical Education, and Global Health, Seattle, WA, 98195 USA

Peter J. Myler, e-mail: [email protected]; James R. Horn, e-mail: [email protected]; Timothy J. Hagen, e-mail: [email protected]Search for more papers by this author
James R. Horn

Corresponding Author

James R. Horn

Northern Illinois University, Department of Chemistry and Biochemistry, 1425 Lincoln Highway, DeKalb, IL, 60115 USA

Peter J. Myler, e-mail: [email protected]; James R. Horn, e-mail: [email protected]; Timothy J. Hagen, e-mail: [email protected]Search for more papers by this author
Timothy J. Hagen

Corresponding Author

Timothy J. Hagen

Northern Illinois University, Department of Chemistry and Biochemistry, 1425 Lincoln Highway, DeKalb, IL, 60115 USA

Peter J. Myler, e-mail: [email protected]; James R. Horn, e-mail: [email protected]; Timothy J. Hagen, e-mail: [email protected]Search for more papers by this author
First published: 04 March 2025

Abstract

The methylerythritol phosphate (MEP) pathway is a metabolic pathway that produces the isoprenoids isopentyl pyrophosphate and dimethylallyl pyrophosphate. Notably, the MEP pathway is present in bacteria and not in mammals, which makes the enzymes of the MEP pathway attractive targets for the discovery of new anti-infective agents due to the reduced chances of off-target interactions leading to side effects. There are seven enzymes in the MEP pathway, the fifth of which is IspF. Crystal structures of Burkholderia pseudomallei IspF were determined with five different sulfonamide ligands bound. The sulfonamide-containing ligands were ethoxzolamide, acetazolamide, sulfapyridine and sulfamonomethoxine. The fifth bound ligand was a synthetic analog of acetazolamide. All ligands coordinated to the active-site Zn+2 ion through the sulfonamide group, although sulfapyridine and sulfamonomethoxine, both of which are known antibacterial agents, possess similar binding interactions that are distinct from the other three sulfonamides. These structural data will aid in the discovery of new IspF inhibitors.

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