It is shown that the degree of regulatory kinetic behavior of rabbit muscle phosphofructokinase increases at a given pH and lower temperatures, as well as at a given temperature and lower pH values. It is also shown that the regulatory kinetic behavior which appears at lower pH values is inherent in the tetrameric (active) form of the enzyme. We conclude that a portion of the mechanism proposed...

The electron paramagnetic resonance (EPR) characteristics of wild type Chiamydomonas reinhardtii are compared with these of a mutant strain (ac-206) which lacks cytochrome 553. The steady-state signals I and II are similar but differ in their responses to light of long and short wavelengths, reflecting the fact that the electron transport chain linking photosystems I and II is interrupted. The ...

The kinetic behavior of a three-dimensional oo-lattice heteropolymer model is studied in terms of the time dependence of the average mean-square displacement between conngura-tions. It is found that at short timescales similar behavior is obtained even for sequences with very diierent thermodynamic properties. Furthermore, the degree of cooperativity in the folding process is examined by studyi...

Isothermal melt crystallization kinetics of PVDF was investigated by differential scanning calorimetry. Thin PVDF film has been fabricated by the solvent casting technique using dimethylformamide (DMF). Then, the samples were melted and subsequently crystallized in the range of the crystallization temperature (Tc) between 138 and 145 °C. The crystallization kinetics was derived from Avrami equa...