Schematic depicting domains of the GRAS proteins
(A–C). The conserved C-terminus GRAS domain comprises five distinct motifs, LHRI, VHIID, LHRII, PYRE, and SAW. The LHRI, VHIID, LHRII, PFYRE motifs are part of the α-helical cap, whereas LHRII, PFYRE, and SAW are the components of the α/β core subdomain. The N-terminus comprises variable motifs and regions. (A) DELLA subfamily consists of two motifs DELLA and VHYNP and a poly-S/T/V region, (B) Short-root (SHR) subfamily comprises of three poly-Q, poly-T, and poly-S/H regions, and (C) SCARECROW (SCR) subfamily comprises of three poly-S/P, poly-S, and poly-Q/P regions on their N-terminus.
(D) Ribbon diagram of the GRAS protein of Os-SCL7. The conserved motifs and regions are shown in different colors: LHRI in cyan, VHIID in yellow, LHRII in blue, PFYRE in red, SAW in orange; disordered regions in green.