FP and FN rates of TM predictions based on different TM cutoffs.

The first column gives the various cutoffs for the average log probability of TM helix prediction (refer to equations 5 and 6). The next two columns denote the number and percentage of false-positive TM helices with respect to 2293 predicted helices from SCOP α-proteins based on the corresponding cutoff rate. Similarly, the last two columns describe the number and percentage of false-negative TM helices with respect to 5592 predicted helices from SCOP membrane proteins.