9kku

Helix-loop-helix peptide (M49) in complex with VEGF-A

Method: X-RAY DIFFRACTION Dmax: 70.0 Å Quality: GOOD

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

Vascular endothelial growth factor A, long form

Homo sapiens

UniProt P15692

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 214–315 Chain B; UniProt 214–315 Not recorded M49 × 2 X-RAY DIFFRACTION X-ray crystallization conditions:COUNTER-DIFFUSION;pH 5.6;293 K;0.2M NH4-AcOH pH 5.6, 14% PEG 3350, 20% 2-Propanol, 0.2M CaCl2,, 0.4M NaCl, 0.04% NaN3 Resolution 1.46 Å R-free 0.250

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.

50 other PDB entries and 72 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name VEGFA_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–102; UniProt 214–315 Author chain B; PDBConstruct 1–102; UniProt 214–315

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 9kku

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9kku
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9kku
Deposition date deposition_date2024-11-14
最后修订 last_revision2024-12-11
Structure title titleHelix-loop-helix peptide (M49) in complex with VEGF-A
Keywords keywordsHelix-loop-helix, Inhibitor, complex, DE NOVO PROTEIN, IMMUNE SYSTEM-DE NOVO PROTEIN complex; IMMUNE SYSTEM/DE NOVO PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.03
Radius of gyration Rg (electron density) rg_electron21.28
Forward intensity I(0) i017227800.00
Molecular weight molecular_weight31507.0 kDa
Excluded volume excluded_volume39542 ų
Envelope volume envelope_volume47530 ų
Hydration-shell volume shell_volume19423 ų
Envelope diameter envelope_diameter72.4
Shell Rg shell_rg27.02
Envelope Rg envelope_rg21.51
Shape Rg shape_rg21.28
Total Rg total_rg22.09
Total atoms total_atoms2196
Residues n_residues276
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 dmax70.0
Rg (real space) rg_real21.99
Rg uncertainty (real space) rg_real_error0.48
I(0) (real space) i0_real1.7230e+07
I(0) uncertainty (real space) i0_real_error2.2800e+05
Rg (reciprocal space) rg_reciprocal22.00
I(0) (reciprocal space) i0_reciprocal17230000.0000
Solution quality estimate total_estimate0.8261
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary28.2
Skewness Skewness skewness0.253
Kurtosis Kurtosis kurtosis-0.427
Angular range angular_range— – 0.3600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2285000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.919; Stabil: 0.997; Sysdev: 1.000; Positv: 1.000; Valcen: 0.987; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)