The first genes coding for Cer synthases (CerS), Lag1p and Lac1p, were found in Saccharomyces cerevisiae, 311, 312) followed by identification of a lower molecular weight protein that is also required for activity.
It is found that the optimal NiCoFe-LDH/CFC with 1 h CER exhibited superior OER activity than pristine NiCo-LDH mandrial and commercial Ir/C electrode including a low onset overpotential of only 240 mV and a low overpotential of 280 mV to achieve a current density of 10 mA cm−2 in 1 M KOH electrolyte.
Furthermore, the CER may reflect physical activity and, as such, good health.
This raises the possibility that BODIPY-Cer generated via SMase activity reaches the ER, and serves as precursor for GlcCer and/or GalCer synthesis.
We have also attempted to overcome the problems of monitoring cultures grown in complex media by online measurement of metabolic activity like OUR, CER, etc. Secondly we have looked at the variability in cellular stress responses as a function of the nature of the expressed protein.
The decrease in dhSph and dhCer levels, as well as the increase in SL species downstream of DES activity (e.g., Cer, GluCer and LactCer), were sustained after long-term absence of 4-HPR in R10 cells (R10 vs. R10 long WD; P < 0.05) with all SL values except GluCer being similar to the values in the parental cell line (R10 long WD vs. CCRF-CEM; P > 0.05).
Cell viability was assessed with the MTS (formazan) assay, while apoptotic activity of PTX and CER was evaluated with caspase-3/7 activation and flow cytometry.
To maintain the environmental integrity of the Kyoto Protocol, CERs are given only for "additional" activities that would otherwise not be expected to occur [36].
The objective of this study was to investigate whether RA can differentially govern cell growth, in the presence and absence of RARα, through differential regulation of the "rheostat" comprising ceramide (CER), the sphingolipid with growth-inhibitory activity, and sphingosine-1-phosphate (S1P), the sphingolipid with prosurvival activity.
To maintain the environmental integrity of the Kyoto Protocol, CERs are given only for "additional" activities that would otherwise not be expected to occur [ 36].
