An unusually flat LRR structure. (a) An unusually flat LRR (4FD0-A) found within the few solenoid structures that have not yet been mentioned in publications. (b) Structural alignment of individual solenoid units with phenylalanine residues colored in blue. (c) Sequences of the respective solenoid units where all phenylalanines are highlighted in blue and all leucine-like residues are highlighted in green. Below is the sequence motif determined by ConSole.