2do2

Design of specific inhibitors of phospholipase A2: Crystal structure of the complex formed between a group II Cys 49 phospholipase A2 and a designed pentapeptide Ala-Leu-Ala-Ser-Lys at 2.6A resolution

Method: X-RAY DIFFRACTION Dmax: 52.1 Å Quality: GOOD

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

Phospholipase A2 VRV-PL-VIIIa

OrganismNot specified

UniProt P59071

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 1–121 Not recorded Ala-Leu-Ala-Ser-Lys × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.8;298 K;0.2M ammonium sulphate, PEG 4000, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.60 Å R-free 0.192

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.

52 other PDB entries and 66 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PA28_DABRP
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–121; UniProt 1–121

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 2do2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2do2
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2do2
Deposition date deposition_date2006-04-27
Structure title titleDesign of specific inhibitors of phospholipase A2: Crystal structure of the complex formed between a group II Cys 49 phospholipase A2 and a designed pentapeptide Ala-Leu-Ala-Ser-Lys at 2.6A resolution
Keywords keywordsCys 49 phospholipase A2, synthetic pentapeptide, complex, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.19
Radius of gyration Rg (electron density) rg_electron14.43
Forward intensity I(0) i04327290.00
Molecular weight molecular_weight14047.0 kDa
Excluded volume excluded_volume17243 ų
Envelope volume envelope_volume19891 ų
Hydration-shell volume shell_volume11919 ų
Envelope diameter envelope_diameter51.7
Shell Rg shell_rg19.89
Envelope Rg envelope_rg14.80
Shape Rg shape_rg14.41
Total Rg total_rg15.52
Total atoms total_atoms969
Residues n_residues126
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 dmax52.1
Rg (real space) rg_real15.13
Rg uncertainty (real space) rg_real_error0.40
I(0) (real space) i0_real4.3270e+06
I(0) uncertainty (real space) i0_real_error5.3510e+04
Rg (reciprocal space) rg_reciprocal15.14
I(0) (reciprocal space) i0_reciprocal4327000.0000
Solution quality estimate total_estimate0.8708
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary17.1
Skewness Skewness skewness0.234
Kurtosis Kurtosis kurtosis-0.365
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1098000.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.782; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.976; Smooth: 0.995

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id2do2A00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology90 — Phospholipase A2
Homologous superfamily homologous superfamily10 — Phospholipase A2 domain

8. Citations (1)

9. Files and Curves (10)