Illustration from Scientific Research

Domain architecture of phyB. PhyB contains the PΦB, nPAS, GAF, and PHY domains, the NTE, knot loop (KL), and hairpin (HP) loops within the PSM; the PAS1 and PAS2 domains, the modulator loop (Mod) preceding the PAS2 domain, and the DHp and CA domains within the HKRD region. The numbers represent the start and end points of the domains or loops within phyB.

DOI