Lineage

Root
1. Class Alpha and beta proteins (a+b) [53931] (53931)
2. Fold Profilin-like (55769)

core: 2 alpha-helices and 5-stranded antiparallel sheet: order 21543; 3 layers: alpha/beta/alpha

Superfamily

Pheromone-binding domain of LuxR-like quorum-sensing transcription factors (75516)

alpha(2)-beta(2)-alpha(2)-beta(3)-alpha; possibly related to the PAS domain
Superfamily

Family Children