A recent collaborative PNAS paper by the Allain (IBC), Jonas (IMBB), Leitner (IMSB) and Sharma groups (University of Arizona) reveals how early spliceosome complexes are brought together via specific RNA-binding of an unstructured arginine-glycine-glycine (RGG) motif.
Click here for original story, Sequence-specific RNA recognition by an RGG motif connects U1 and U2 snRNP for spliceosome assembly
Source: Phys.org