8dcp

PI 3-kinase alpha with nanobody 3-126

Method: ELECTRON MICROSCOPY Dmax: 122.2 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) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.6 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.41 Å

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 29–1096; 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 3–724 Not recorded Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform × 1 (P42336) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.6 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.41 Å

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 2–723; UniProt 3–724

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 8dcp

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id8dcp
Deposition date deposition_date2022-06-17
Structure title titlePI 3-kinase alpha with nanobody 3-126
Keywords keywordsPhosphoinositide 3-kinase (PI3K), activation, inhibition, nanobody, conformational changes, STRUCTURAL PROTEIN, TRANSFERASE; TRANSFERASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier35.94
Radius of gyration Rg (electron density) rg_electron35.16
Forward intensity I(0) i0344284000.00
Molecular weight molecular_weight150410.0 kDa
Excluded volume excluded_volume188710 ų
Envelope volume envelope_volume247680 ų
Hydration-shell volume shell_volume57685 ų
Envelope diameter envelope_diameter129.3
Shell Rg shell_rg42.26
Envelope Rg envelope_rg35.22
Shape Rg shape_rg35.16
Total Rg total_rg35.66
Total atoms total_atoms10563
Residues n_residues1281
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 dmax122.2
Rg (real space) rg_real35.84
Rg uncertainty (real space) rg_real_error1.02
I(0) (real space) i0_real3.4430e+08
I(0) uncertainty (real space) i0_real_error6.2600e+06
Rg (reciprocal space) rg_reciprocal35.90
I(0) (reciprocal space) i0_reciprocal344300000.0000
Solution quality estimate total_estimate0.8711
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary44.4
Skewness Skewness skewness0.321
Kurtosis Kurtosis kurtosis-0.172
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha70730000.0000
Real-space data points n_real_points45
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.783; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.972

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)