ArticleBiochemistry2018
Spectroscopic Study of the EutT Adenosyltransferase from Listeria monocytogenes: Evidence for the Formation of a Four-Coordinate Cob(II)alamin Intermediate.
Article in Biochemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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2 citing papers in PubMed, 6 citations in OpenAlex.
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4 authors at 2 institutions in 1 country.
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Abstract
The EutT enzyme from Listeria monocytogenes ( LmEutT) is a member of the family of ATP:cobalt(I) corrinoid adenosyltransferase (ACAT) enzymes that catalyze the biosynthesis of adenosylcobalamin (AdoCbl) from exogenous Co(II)rrinoids and ATP. Apart from EutT-type ACATs, two evolutionary unrelated types of ACATs have been identified, termed PduO and CobA. Although the three types of ACATs are nonhomologous, they all generate a four-coordinate cob(II)alamin (4C Co(II)Cbl) species to facilitate the formation of a supernucleophilic Co(I)Cbl intermediate capable of attacking the 5'-carbon of cosubstrate ATP. Previous spectroscopic studies of the EutT ACAT from Salmonella enterica ( SeEutT) revealed that this enzyme requires a divalent metal cofactor for the conversion of 5C Co(II)Cbl to a 4C species. Interestingly, LmEutT does not require a divalent metal cofactor for catalytic activity, which exemplifies an interesting phylogenetic divergence among the EutT enzymes. To explore if this disparity in the metal cofactor requirement among EutT enzymes correlates with differences in substrate specificity or the mechanism of Co(II)Cbl reduction, we employed various spectroscopic techniques to probe the interaction of Co(II)Cbl and cob(II)inamide (Co(II)Cbi
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