CHEMISTRY, BIOPHYSICS AND COMPUTATIONAL BIOLOGY Correction for “Solid-to-fluid–like DNA transition in viruses facilitates infection,” by Ting Liu, Udom Sae-Ueng, Dong Li, Gabriel C. Lander, Xiaobing Zuo, Bengt Jönsson, Donald Rau, Ivetta Shefer, and Alex Evilevitch, which appeared in issue 41, October 14, 2014, of Proc Natl Acad Sci USA (111:14675–14680; first published September 30, 2014; 10.1073/pnas.1321637111).
The authors note that Fig. 2 appeared incorrectly. The corrected figure and its legend appear below.
Fig. 2.
Histograms of AFM-measured spring constants of empty and WT DNA phage λ capsids at different temperatures in 10 mM MgCl2–Tris buffer (A) and 10 mM MgSO4–Tris buffer (B). Above the DNA phase transition temperature, the spring constant of WT DNA-filled λ capsids is equal to that of an empty capsid. (C) Spring constants of empty and DNA-filled phage λ capsids as a function of indentation rates at 32 °C and 37 °C in MgCl2–Tris buffer. The error bars show the SE. (D) Spring constants of encapsidated DNA, kDNA, measured at 32 °C and 37 °C in MgCl2–Tris buffer. The error bars show SE. The black dashed line shows the indentation rate of 60 nm/s, at which the DNA relaxation rate during the indentation is faster than the AFM tip indentation rate (i.e., indentation occurs at equilibrium). The gray dashed line shows the indentation rate corresponding to the DNA sliding/ejection rate of 60,000 bp/s determined in ref. 9.