Crystal structures of thiamine monophosphate kinase from Acinetobacter baumannii in complex with substrates and products.
Sullivan, A.H., Dranow, D.M., Horanyi, P.S., Lorimer, D.D., Edwards, T.E., Abendroth, J.(2019) Sci Rep 9: 4392-4392
- PubMed: 30867460 
- DOI: https://doi.org/10.1038/s41598-019-40558-x
- Primary Citation of Related Structures:  
5CC8, 5CM7, 5DD7, 6MFM - PubMed Abstract: 
Thiamine monophosphate kinase (ThiL) catalyzes the last step of thiamine pyrophosphate (TPP) synthesis, the ATP-dependent phosphorylation of thiamine monophosphate (TMP) to thiamine pyrophosphate. We solved the structure of ThiL from the human pathogen A. baumanii in complex with a pair of substrates TMP and a non-hydrolyzable adenosine triphosphate analog, and in complex with a pair of products TPP and adenosine diphosphate. High resolution of the data and anomalous diffraction allows for a detailed description of the binding mode of substrates and products, and their metal environment. The structures further support a previously proposed in-line attack reaction mechanism and show a distinct variability of metal content of the active site.
Organizational Affiliation: 
UCB/Beryllium Discovery, 98110, 7869 NE Day Road West, Bainbridge Island, WA, USA.