Francesc Mas

TL;DR: The results show that bistable behavior in covalent modification cascades relies not only on the structure and regulatory pattern of feedback/feedforward loops, but also on the kinetic characteristics of their component proteins.

TL;DR: It is demonstrated that the assumptions of the theoretical studies, i.e., irreversibility and absence of product inhibition, were not trivial: when the conversion reactions are close to equilibrium or saturated by their product, “zero-order” ultrasensitivity disappears.

TL;DR: In this paper, a systematic experimental study of quasi-two-dimensional zinc electrodeposition in an electrochemical cell with parallel electrodes is reported, and the well-known different growth regimes, from anisotropicically dendritic to irregularly disordered fractal, described previously in radial cells, are shown together with a novel mixed texture composed of dendric backbones with ramified open branches.

TL;DR: The results indicate that the volume occupied by the crowding agent, but not its size, plays an important role on the initial velocity of reactions involving tiny enzymes, while the enzyme size is another important factor influencing the velocity of the reactions of large enzymes occurring in Dextran crowded media.

TL;DR: The results indicate that the volume occupied by the crowding agent, but not its size, plays an important role in the rate of this reaction, with a v(max) decay and a K(m) increase obtained when the dextran concentration in the sample was increased.