... robust synthesis of pantothenate from low amounts of pantoate [9] Here, we report the results of the structural studies of the pantoate- bound form of the N-terminal domain of E coli PS (nPS) The structure ... [13] Details of the structural basis for the biochemically observed inhibition of plant PS by pantoate, as well as of the alleviation of this inhibition by another substrate of the enzyme, ATP, ... back to the position of the Fig Superimposition of the A-chain of nPS (green), the B-chain of nPS (cyan), and the substrate-free protein (1IHO.pdb; magenta) The carbon and oxygen atoms of pantoate...