4l23

Crystal Structure of p110alpha complexed with niSH2 of p85alpha and PI-103

Method: X-RAY DIFFRACTION Dmax: 121.8 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 Not recorded Phosphatidylinositol 3-kinase regulatory subunit alpha × 1 (P27986) X6K 3-(4-MORPHOLIN-4-YLPYRIDO[3',2':4,5]FURO[3,2-D]PYRIMIDIN-2-YL)PHENOL × 1 SO4 SULFATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;291 K;0.15 M Lithium sulfate, 0.1 M Tris PH 8.5, 30%(W/V) PEG 1000MME, vapor diffusion, hanging drop, temperature 291K Resolution 2.50 Å R-free 0.273

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 145 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 1–1068; 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 318–615 Fragment:niSH2 of p85alpha, UNP residues 318-615 Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform × 1 (P42336) X6K 3-(4-MORPHOLIN-4-YLPYRIDO[3',2':4,5]FURO[3,2-D]PYRIMIDIN-2-YL)PHENOL × 1 SO4 SULFATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;291 K;0.15 M Lithium sulfate, 0.1 M Tris PH 8.5, 30%(W/V) PEG 1000MME, vapor diffusion, hanging drop, temperature 291K Resolution 2.50 Å R-free 0.273

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 116 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 27–324; UniProt 318–615

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 4l23

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4l23
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4l23
Deposition date deposition_date2013-06-04
Structure title titleCrystal Structure of p110alpha complexed with niSH2 of p85alpha and PI-103
Keywords keywordsATP binding, PI-103, signaling Protein-transferase-Inhibitor complex; signaling Protein/transferase/Inhibitor
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.41
Radius of gyration Rg (electron density) rg_electron34.71
Forward intensity I(0) i0350880000.00
Molecular weight molecular_weight152030.0 kDa
Excluded volume excluded_volume190650 ų
Envelope volume envelope_volume243370 ų
Hydration-shell volume shell_volume57169 ų
Envelope diameter envelope_diameter129.9
Shell Rg shell_rg42.09
Envelope Rg envelope_rg34.89
Shape Rg shape_rg34.71
Total Rg total_rg35.21
Total atoms total_atoms10676
Residues n_residues1291
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 dmax121.8
Rg (real space) rg_real35.31
Rg uncertainty (real space) rg_real_error0.91
I(0) (real space) i0_real3.5090e+08
I(0) uncertainty (real space) i0_real_error6.2540e+06
Rg (reciprocal space) rg_reciprocal35.38
I(0) (reciprocal space) i0_reciprocal350900000.0000
Solution quality estimate total_estimate0.8663
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary43.3
Skewness Skewness skewness0.310
Kurtosis Kurtosis kurtosis-0.185
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha81250000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.760; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.979

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id4l23A01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily770
Domain ID domain_id4l23A02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily150 — C2 domain
Domain ID domain_id4l23A03
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily70 — Phosphatidylinositol 3-kinase, accessory domain (PIK)
Domain ID domain_id4l23A04
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1010 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 4
Homologous superfamily homologous superfamily10 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 4
Domain ID domain_id4l23A05
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1070 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, Domain 5
Homologous superfamily homologous superfamily11 — Phosphatidylinositol 3-/4-kinase, catalytic domain
Domain ID domain_id4l23B02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily1490

8. Citations (1)

9. Files and Curves (10)