PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11389832-2 2001 Here, we demonstrate that a dark-induced small G protein, pea Pra2, regulates a variant cytochrome P450 that catalyzes C-2 hydroxylation in brassinosteroid biosynthesis. Brassinosteroids 140-155 Rac family small GTPase 2 Homo sapiens 41-56