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Discovery of a natural thiamine adenine nucleotide

2007; Nature Portfolio; Volume: 3; Issue: 4 Linguagem: Inglês

10.1038/nchembio867

1552-4469

Lucien Bettendorff, Barbara Wirtzfeld, Alexander F Makarchikov, Gabriel Mazzucchelli, Michel Frédérich, Tiziana Gigliobianco, Marjorie Gangolf, Edwin De Pauw, Luc Angenot, Pierre Wins,

Folate and B Vitamins Research

Several important cofactors are adenine nucleotides with a vitamin as the catalytic moiety. Here, we report the discovery of the first adenine nucleotide containing vitamin B1: adenosine thiamine triphosphate (AThTP, 1), or thiaminylated ATP. We discovered AThTP in Escherichia coli and found that it accumulates specifically in response to carbon starvation, thereby acting as a signal rather than a cofactor. We detected smaller amounts in yeast and in plant and animal tissues.