To pinpoint deficient steps in the recombinant pathway, we developed an analytical procedure for the determination of intracellular pools of key pathway intermediates and applied the technique to the analysis of three sets of E. coli strains expressing various combinations of butyrate biosynthesis genes.
It is remarkable that these general alterations are observed even in mutant lines that are deficient in steps early or late in the desaturation pathways.
However, if cohesin ATPase mutants are deficient in the step that entraps DNA inside the cohesin ring, Wapl depletion should not lead to a stabilization of these mutants on chromatin.
Thereafter, in the final step, flexurally deficient RC beams were strengthened with 30 mm thick UHPFRC laminates using two different bonding methods: gluing with epoxy and mechanical anchoring.
61 Metabolism of 2-chloro-hexadecanal to 2-chloro-hexadecanoic acid has been demonstrated in human endothelial cells, 62 and mutant FALDH-deficient Chinese hamster cells have been found to be deficient in this oxidative step.
In Atg5 knockout (KO) mouse embryonic fibroblasts (MEF), which are deficient in the terminal step of the LC3 lipidation cascade, autophagosome formation is blocked downstream of the PI3K pathway (Mizushima et al., 2001; Suzuki et al., 2007; Itakura and Mizushima, 2010).
While investigating the mechanism of LctM involved in the biosynthesis of lacticin 481, two mutants (R399M and T405A) were identified that were deficient in the phosphate elimination step.
Similarly, barley lines overexpressing a Pi transporter did not show improved tolerance to P deficiency (Rae et al. 2004), most likely because substrate (Pi) availability rather than transporter activity is the limiting step in P-deficient soils.
We next tested whether tumors derived from CD133+ cells were deficient in one or more steps of the metastatic process.
Instead, we are left with a heroic effort, possibly doomed from the start, to instil in readers alternate modes of fascination, radically out of step with our attention-deficient and ever "rationalising" culture.
