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Tadhg P. Begley

Researcher at Texas A&M University

Publications -  274
Citations -  14269

Tadhg P. Begley is an academic researcher from Texas A&M University. The author has contributed to research in topics: Active site & Cofactor. The author has an hindex of 60, co-authored 268 publications receiving 13221 citations. Previous affiliations of Tadhg P. Begley include Oregon State University & Boyce Thompson Institute for Plant Research.

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Identification of a thiamin-dependent synthase in Escherichia coli required for the formation of the 1-deoxy-d-xylulose 5-phosphate precursor to isoprenoids, thiamin, and pyridoxol

TL;DR: It is shown that an open reading frame at 9 min on the chromosomal map of E. coli encodes an enzyme (deoxyxylulose-5-phosphate synthase, DXP synthase) that catalyzes a thiamin diphosphate-dependent acyloin condensation reaction between C atoms 2 and 3 of pyruvate and glyceraldehyde 3-ph phosphate to yield DXP.
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Top down characterization of larger proteins (45 kDa) by electron capture dissociation mass spectrometry.

TL;DR: The addition of ECD substantially increases the capabilities of top down mass spectrometry for the detailed structural characterization of large proteins.
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Thiamin biosynthesis in prokaryotes.

TL;DR: The X-ray structures of thiamin phosphate synthase and 5-hydroxyethyl-4-methylthiazole kinase have been completed and the genes coding for the thienin transport system (thiBPQ) have been identified.
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The Structural and Biochemical Foundations of Thiamin Biosynthesis

TL;DR: Two thiamin degrading enzymes have been characterized and one of which is linked to a novel salvage pathway that can be salvaged through several routes, and the thiazole and pyrimidine moieties are synthesized in separate branches of the pathway.