1tg1

Crystal Structure of the complex formed between russells viper phospholipase A2 and a designed peptide inhibitor PHQ-Leu-Val-Arg-Tyr at 1.2A resolution

Method: X-RAY DIFFRACTION Dmax: 52.0 Å Quality: GOOD

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

Phospholipase A2

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 peptide inhibitor × 1 SO4 SULFATE ION × 3 ACY ACETIC ACID × 1 MOH METHANOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;298 K;0.2M AMMONIUM SULPHATE, 30% PEG, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K Resolution 1.25 Å R-free 0.197

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 PA2B8_DABRR
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 1tg1

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1tg1
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1tg1
Deposition date deposition_date2004-05-28
Structure title titleCrystal Structure of the complex formed between russells viper phospholipase A2 and a designed peptide inhibitor PHQ-Leu-Val-Arg-Tyr at 1.2A resolution
Keywords keywordsPHOSPHOLIPASE A2, HYDROLASE-HYDROLASE INHIBITOR COMPLEX; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.30
Radius of gyration Rg (electron density) rg_electron14.44
Forward intensity I(0) i04744260.00
Molecular weight molecular_weight14695.0 kDa
Excluded volume excluded_volume18027 ų
Envelope volume envelope_volume20656 ų
Hydration-shell volume shell_volume12216 ų
Envelope diameter envelope_diameter50.9
Shell Rg shell_rg20.00
Envelope Rg envelope_rg14.93
Shape Rg shape_rg14.39
Total Rg total_rg15.65
Total atoms total_atoms1015
Residues n_residues125
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 dmax52.0
Rg (real space) rg_real15.24
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real4.7440e+06
I(0) uncertainty (real space) i0_real_error5.8600e+04
Rg (reciprocal space) rg_reciprocal15.25
I(0) (reciprocal space) i0_reciprocal4744000.0000
Solution quality estimate total_estimate0.8732
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary17.1
Skewness Skewness skewness0.243
Kurtosis Kurtosis kurtosis-0.385
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1476000.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.790; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.980; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1tg1a_
Class classa — All alpha proteins
Fold Fold folda.133 — Phospholipase A2, PLA2
Superfamily Superfamily superfamilya.133.1 — Phospholipase A2, PLA2
Family Family familya.133.1.2 — Vertebrate phospholipase A2

CATH v4.4 (1 domains)

Domain ID domain_id1tg1A00
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)