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Basic Data for Biochemistry

Robert A. Alberty
Organization: Massachusetts Institute of Technology
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The objective of this package is to give the basic thermodynamic data on a large number of species involved in biochemical reactions at 298.15 K, 1 bar, and zero ionic strength and show how to use these data to calculate apparent equilibrium constants K' of biochemical reactions at desired pHs and ionic strengths. Biochemical reactions are written in terms of sums of species, which are referred to as reactants. The thermodynamic properties of reactants are referred to as transformed properties because the pH is specified. Programs are given for calculating the standard thermodynamic properties of reactants from the basic data on species. Four tables are included to show how the standard transformed Gibbs energies of formation and standard transformed enthalpies of formation of 116 reactants depend on pH and ionic strength. Programs are given for the calculation of apparent equilibrium constants and other thermodynamic properties of reactions by simply typing in the reaction. Examples are given of various uses of these tables, including how to plot the various properties versus pH.

*Science > Biology
*Science > Chemistry

Gibbs energies, reactant, standard transformed enthalpies
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BasicBiochemData2.m (46.8 KB) - Mathematica package
BasicBiochemData2.nb (242.6 KB) - Mathematica Notebook