1w5o

Stepwise introduction of zinc binding site into porphobilinogen synthase of Pseudomonas aeruginosa (mutations A129C, D131C and D139C)

Method: X-RAY DIFFRACTION Dmax: 84.4 Å Quality: GOOD

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

DELTA-AMINOLEVULINIC ACID DEHYDRATASE

PSEUDOMONAS AERUGINOSA

UniProt Q59643

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 homooligomer Homooligomer Protein × 8 PDB declaration: octameric(8) Consistent with protein copy count Chain A; UniProt 1–337 Chain B; UniProt 1–337 Mutation:YES GOL GLYCEROL × 8 K POTASSIUM ION × 8 MG MAGNESIUM ION × 8 ZN ZINC ION × 8 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6;SITTING DROP. DROPS WERE MIXED OF 3 MICROLITER OF PROTEIN SOLUTION (7 MG/ML PROTEIN, 50 MM NA-HEPES PH 7.5, 10MM MGCL2, 10MM ZNCL2, 10 MM DTT) PLUS 3 MICROLITER OF RESERVOIR SOLUTION (1M K/NA-TARTRATE, 100MM MES PH 6.0, 20MM BETA-MERCAPTOETHANOLE), 100 MICROLITER OF RESERVOIR SOLUTION, 96 WELL PLATES (NUNC) Resolution 1.85 Å R-free 0.176

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.

15 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HEM2_PSEAE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–337; UniProt 1–337 Author chain B; PDBConstruct 1–337; UniProt 1–337

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 1w5o

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1w5o
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1w5o
Deposition date deposition_date2004-08-09
Structure title titleStepwise introduction of zinc binding site into porphobilinogen synthase of Pseudomonas aeruginosa (mutations A129C, D131C and D139C)
Keywords keywordsSYNTHASE, EVOLUTION, METALLOENZYME, PORPHOBILINOGEN SYNTHASE, PSEUDOMONAS AERUGINOSA, PROTEIN ENGINEERING; SYNTHASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.01
Radius of gyration Rg (electron density) rg_electron25.95
Forward intensity I(0) i087417300.00
Molecular weight molecular_weight72155.0 kDa
Excluded volume excluded_volume89848 ų
Envelope volume envelope_volume103380 ų
Hydration-shell volume shell_volume32852 ų
Envelope diameter envelope_diameter86.1
Shell Rg shell_rg33.89
Envelope Rg envelope_rg26.20
Shape Rg shape_rg25.97
Total Rg total_rg26.68
Total atoms total_atoms5060
Residues n_residues653
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 dmax84.4
Rg (real space) rg_real26.99
Rg uncertainty (real space) rg_real_error0.45
I(0) (real space) i0_real8.7420e+07
I(0) uncertainty (real space) i0_real_error1.3930e+06
Rg (reciprocal space) rg_reciprocal27.00
I(0) (reciprocal space) i0_reciprocal87420000.0000
Solution quality estimate total_estimate0.8971
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary30.0
Skewness Skewness skewness0.347
Kurtosis Kurtosis kurtosis-0.440
Angular range angular_range— – 0.2950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha23810000.0000
Real-space data points n_real_points60
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.916; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.914

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1w5oa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.10 — Aldolase
Family Family familyc.1.10.3 — 5-aminolaevulinate dehydratase, ALAD (porphobilinogen synthase)
Domain ID domain_idd1w5ob_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamilyc.1.10 — Aldolase
Family Family familyc.1.10.3 — 5-aminolaevulinate dehydratase, ALAD (porphobilinogen synthase)

CATH v4.4 (2 domains)

Domain ID domain_id1w5oA00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I
Domain ID domain_id1w5oB00
Class class3 — Alpha Beta
Architecture architecture20 — Alpha-Beta Barrel
Topology topology20 — TIM Barrel
Homologous superfamily homologous superfamily70 — Aldolase class I

8. Citations (1)

9. Files and Curves (10)