Fig. 3From: Reliable scaling of position weight matrices for binding strength comparisons between transcription factors λ z-score distribution comparison across major TF families. BBA-ZF represents the λ distribution for β- β- α zinc-finger family; NR is zinc-finger nuclear receptor family; L-zipper stands for the basic leucine-zipper family; HLH is helix-loop-helix family; Homeo is homeobox family; FK is fork-head family and HMG is high mobility group family. For each group, λ was calculated by Eq. 6 and z-score is obtained by normalizing λ in each PWM motif length groupBack to article page