| Class b: All beta proteins [48724] (178 folds) |
| Fold b.55: PH domain-like barrel [50728] (3 superfamilies) barrel, partly opened; n*=6, S*=12; meander; capped by an alpha-helix |
Superfamily b.55.1: PH domain-like [50729] (14 families) ![]() |
| Family b.55.1.2: Phosphotyrosine-binding domain (PTB) [50755] (13 proteins) Pfam PF00640 |
| Protein Insulin receptor substrate 1, IRS-1 [50758] (1 species) duplication: contains two domains of this fold |
| Human (Homo sapiens) [TaxId:9606] [50759] (2 PDB entries) |
| Domain d1irsa_: 1irs A: [26991] second domain complexed with a IL-4 receptor phosphopeptide |
| Domain d1qqga1: 1qqg A:12-114 [26987] |
| Domain d1qqga2: 1qqg A:159-262 [26988] |
| Domain d1qqgb1: 1qqg B:11-114 [26989] |
| Domain d1qqgb2: 1qqg B:159-264 [26990] |
Timeline for Protein Insulin receptor substrate 1, IRS-1 from b.55.1.2: Phosphotyrosine-binding domain (PTB):