Erratum to: J Mol Evol (2014) 78:171–187 DOI 10.1007/s00239-014-9616-1

In Table 1 on page 174, the values of the standard molal entropy (S°) at 25 °C and 1 bar for GlyGly−, and those of the standard molal heat capacity (C p °) at 25 °C and 1 bar for GlyGly+ and GlyGly− are incorrect. The correct values are 49.72, 55.9 and 15.5, respectively. The errors of the C p ° values originated from the use of unit (J mol−1 K−1) instead of (cal mol−1 K−1). The error of the S° value originated from mistyping. The corrected Table 1 is given here.

Table 1 Standard molal thermodynamic data at 25 °C and 1 bar and revised HKF equation of state parameters for Gly, GlyGly, GlyGlyGly, and DKP in their zwitterionic and ionization states
Full size table

In Eq. 39 on page 185, the positive sign in the term \(\left(\frac{1}{T+\Theta}\right)\) must be changed to the negative sign. The corrected Eq. 39 is written below.

$$\begin{aligned} \Delta G^{o} &=\, \Delta G_{f}^{o} - S_{{P_{r} ,T_{r} }}^{o} \left( {T - T_{r} } \right) - c_{1} \left[ {T\ln \left( {\frac{T}{{T_{r} }}} \right) - T + T_{r} } \right]\\ &\quad- c_{2} \left\{ {\left[ {\left( {\frac{1}{T - \varTheta }} \right) - \left( {\frac{1}{{T_{r} - \varTheta }}} \right)} \right]\left( {\frac{\varTheta - T}{\varTheta }} \right)} \right\} \hfill \\ &\quad+ c_{2} \left\{ {\frac{T}{{\varTheta^{2} }}\ln \left[ {\frac{{T_{r} \left( {T - \varTheta } \right)}}{{T\left( {T_{r} - \varTheta } \right)}}} \right]} \right\} + a_{1} \left( {P - P_{r} } \right)\\ &\quad+ a_{2} \ln \left( {\frac{\varPsi + P}{{\varPsi + P_{r} }}} \right)\\ &\quad+ \left( {\frac{1}{T - \varTheta }} \right)\left[ {a_{3} \left( {P - P_{r} } \right) + a_{4} \ln \left( {\frac{\varPsi + P}{{\varPsi + P_{r} }}} \right)} \right] \hfill \\ &\quad+ \omega \left( {\frac{1}{\epsilon } - 1} \right) - \omega_{{P_{r} ,T_{r} }} \left[ {Y_{{P_{r} ,T_{r} }} \left( {T_{r} - T} \right) + \frac{1}{{\epsilon_{{P_{r} ,T_{r} }} }} - 1} \right] \hfill \\ \end{aligned}$$
(39)