8v8v

PI3Ka H1047R co-crystal structure with inhibitor in cryptic pocket near H1047R (compound 7).

Method: X-RAY DIFFRACTION Dmax: 195.0 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform

Homo sapiens

UniProt P42336

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–1068 Mutation:H1047R Phosphatidylinositol 3-kinase regulatory subunit alpha × 1 (P27986) YQ2 2-[[(1~{R})-1-(7-methyl-4-oxidanylidene-2-piperidin-1-yl-3~{H}-pyrido[1,2-a]pyrimidin-9-yl)ethyl]amino]benzoic acid × 1 1LT (2S)-N~1~-{4-methyl-5-[2-(1,1,1-trifluoro-2-methylpropan-2-yl)pyridin-4-yl]-1,3-thiazol-2-yl}pyrrolidine-1,2-dicarboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.6 M Sodium Formate, 0.1 M Citrate pH 5.0 Resolution 2.61 Å R-free 0.288
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–1068 Mutation:H1047R Phosphatidylinositol 3-kinase regulatory subunit alpha × 1 (P27986) YQ2 2-[[(1~{R})-1-(7-methyl-4-oxidanylidene-2-piperidin-1-yl-3~{H}-pyrido[1,2-a]pyrimidin-9-yl)ethyl]amino]benzoic acid × 1 1LT (2S)-N~1~-{4-methyl-5-[2-(1,1,1-trifluoro-2-methylpropan-2-yl)pyridin-4-yl]-1,3-thiazol-2-yl}pyrrolidine-1,2-dicarboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.6 M Sodium Formate, 0.1 M Citrate pH 5.0 Resolution 2.61 Å R-free 0.288

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

134 other PDB entries and 144 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PK3CA_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 6–1073; UniProt 1–1068 Author chain C; PDBConstruct 6–1073; UniProt 1–1068

Phosphatidylinositol 3-kinase regulatory subunit alpha

Homo sapiens

UniProt P27986

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 322–600 Not recorded Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform × 1 (P42336) YQ2 2-[[(1~{R})-1-(7-methyl-4-oxidanylidene-2-piperidin-1-yl-3~{H}-pyrido[1,2-a]pyrimidin-9-yl)ethyl]amino]benzoic acid × 1 1LT (2S)-N~1~-{4-methyl-5-[2-(1,1,1-trifluoro-2-methylpropan-2-yl)pyridin-4-yl]-1,3-thiazol-2-yl}pyrrolidine-1,2-dicarboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.6 M Sodium Formate, 0.1 M Citrate pH 5.0 Resolution 2.61 Å R-free 0.288
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 322–600 Not recorded Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform × 1 (P42336) YQ2 2-[[(1~{R})-1-(7-methyl-4-oxidanylidene-2-piperidin-1-yl-3~{H}-pyrido[1,2-a]pyrimidin-9-yl)ethyl]amino]benzoic acid × 1 1LT (2S)-N~1~-{4-methyl-5-[2-(1,1,1-trifluoro-2-methylpropan-2-yl)pyridin-4-yl]-1,3-thiazol-2-yl}pyrrolidine-1,2-dicarboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.6 M Sodium Formate, 0.1 M Citrate pH 5.0 Resolution 2.61 Å R-free 0.288

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

103 other PDB entries and 115 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name P85A_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–279; UniProt 322–600 Author chain D; PDBConstruct 1–279; UniProt 322–600

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8v8v

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8v8v
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8v8v
Deposition date deposition_date2023-12-06
Structure title titlePI3Ka H1047R co-crystal structure with inhibitor in cryptic pocket near H1047R (compound 7).
Keywords keywordsH1047R, PI3K, PI3Ka, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier51.68
Radius of gyration Rg (electron density) rg_electron51.70
Forward intensity I(0) i01145650000.00
Molecular weight molecular_weight285170.0 kDa
Excluded volume excluded_volume358120 ų
Envelope volume envelope_volume493540 ų
Hydration-shell volume shell_volume80766 ų
Envelope diameter envelope_diameter210.5
Shell Rg shell_rg54.18
Envelope Rg envelope_rg50.89
Shape Rg shape_rg51.67
Total Rg total_rg51.87
Total atoms total_atoms20020
Residues n_residues2429
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax195.0
Rg (real space) rg_real51.93
Rg uncertainty (real space) rg_real_error2.41
I(0) (real space) i0_real1.1460e+09
I(0) uncertainty (real space) i0_real_error2.5910e+07
Rg (reciprocal space) rg_reciprocal51.48
I(0) (reciprocal space) i0_reciprocal1145000000.0000
Solution quality estimate total_estimate0.8302
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary52.0
Skewness Skewness skewness0.526
Kurtosis Kurtosis kurtosis-0.088
Angular range angular_range— – 0.1500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha136900000.0000
Real-space data points n_real_points31
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.630; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.965; Smooth: 0.933

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)