|  | Class a: All alpha proteins [46456] (284 folds) | 
|  | Fold a.91: Regulator of G-protein signaling, RGS [48096] (1 superfamily) multihelical; consists of two all-alpha subdomains contains a 4-helical bundle with left-handed twist and up-and-down topology | 
|  | Superfamily a.91.1: Regulator of G-protein signaling, RGS [48097] (2 families)  | 
|  | Family a.91.1.1: Regulator of G-protein signaling, RGS [48098] (10 proteins) | 
|  | Protein RGS9, RGS domain [48101] (1 species) | 
|  | Cow (Bos taurus) [TaxId:9913] [48102] (3 PDB entries) | 
|  | Domain d1fqia_: 1fqi A: [18542] | 
|  | Domain d1fqkb_: 1fqk B: [18545] Other proteins in same PDB: d1fqka1, d1fqka2, d1fqkc1, d1fqkc2 complexed with alf, gdp, mg | 
|  | Domain d1fqkd_: 1fqk D: [18546] Other proteins in same PDB: d1fqka1, d1fqka2, d1fqkc1, d1fqkc2 complexed with alf, gdp, mg | 
Timeline for Protein RGS9, RGS domain from a.91.1.1: Regulator of G-protein signaling, RGS: