Crystal Structure of PI3Kalpha in complex with fragment 18
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| A | AP_endonuc_2 | e5sxkA1 | A: alpha bundles | X: Cytochrome P450 | H: Cytochrome P450 | T: Cytochrome P450 | F: AP_endonuc_2 | ECOD (develop294) |
| B | Ribosomal_L6 | e5sxkB1 | A: alpha bundles | X: jelly-roll | H: beta-propeller | T: 5-bladed | F: Ribosomal_L6 | ECOD (develop294) |
| B | Ribosomal_L2_C | e5sxkB2 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: Ribosomal_L2_C | ECOD (develop294) |
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| A | 2.60.40.150 | Mainly Beta | Sandwich | Immunoglobulin-like | C2 domain | CATH (utative) |
| A | 1.25.40.70 | Mainly Alpha | Alpha Horseshoe | Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat | Phosphatidylinositol 3-kinase, accessory domain (PIK) | CATH (utative) |
| B | 1.10.287.1490 | Mainly Alpha | Orthogonal Bundle | Helix Hairpins | CATH (utative) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF02192 | PI3-kinase family, p85-binding domain (PI3K_p85B) | PI3-kinase family, p85-binding domain | - | Family | |
| PF00792 | Phosphoinositide 3-kinase C2 (PI3K_C2) | Phosphoinositide 3-kinase C2 | Phosphoinositide 3-kinase region postulated to contain a C2 domain. Outlier of Pfam:PF00168 family. | Domain | |
| PF00794 | PI3-kinase family, ras-binding domain (PI3K_rbd) | PI3-kinase family, ras-binding domain | Certain members of the PI3K family possess Ras-binding domains in their N-termini. These regions show some similarity (although not highly significant similarity) to Ras-binding Pfam:PF00788 domains (unpublished observation). | Domain | |
| PF00454 | Phosphatidylinositol 3- and 4-kinase (PI3_PI4_kinase) | Phosphatidylinositol 3- and 4-kinase | - | Family | |
| PF00017 | SH2 domain (SH2) | SH2 domain | Domain |














