The experimental and theoretical data on stretching of proteins.

denotes the experimentally measured value of as reported in the reference stated in the last column. denotes the experimental pulling speed used. is the value of the maximal force obtained in our simulation within the model. They were performed at . corresponds to the theoretical estimate of when extrapolated to the experimental speeds. The extrapolation assumes the approximate logarithmic dependence , where is . 10 speeds were used to determine the values of and in analogy to the procedure illustrated in Figure 11 The values of and are provided in columns 7 and 8 of the Table respectively. The first column indicates the corresponding symbol that is used in Figure 12.