7mhw

Crystal structure of the protease inhibitor U-Omp19 from Brucella abortus fused to Maltose-binding protein

Method: X-RAY DIFFRACTION Dmax: 73.1 Å Quality: EXCELLENT

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

Maltose/maltodextrin-binding periplasmic protein,Outer membrane lipoprotein omp19

Brucella abortus

UniProt P0AEX9

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 27–392 Mutation:D(-233)A,K(-232)A,K(-76)A,E44A,K47A,D48A SO4 SULFATE ION × 7 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;294 K;2.4 M ammonium sulfate, 0.1 M sodium citrate Resolution 2.55 Å R-free 0.242

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.

366 other PDB entries and 491 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MALE_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–367; UniProt 27–392

Maltose/maltodextrin-binding periplasmic protein,Outer membrane lipoprotein omp19

Brucella abortus

UniProt Q2YLR6

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 77–177 Mutation:D(-233)A,K(-232)A,K(-76)A,E44A,K47A,D48A SO4 SULFATE ION × 7 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;294 K;2.4 M ammonium sulfate, 0.1 M sodium citrate Resolution 2.55 Å R-free 0.242

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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name OMP19_BRUA2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 373–473; UniProt 77–177

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 7mhw

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7mhw
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7mhw
Deposition date deposition_date2021-04-15
Structure title titleCrystal structure of the protease inhibitor U-Omp19 from Brucella abortus fused to Maltose-binding protein
Keywords keywordsProtease inhibitor, MBP-fusion protein, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.96
Radius of gyration Rg (electron density) rg_electron23.66
Forward intensity I(0) i044083600.00
Molecular weight molecular_weight51257.0 kDa
Excluded volume excluded_volume64121 ų
Envelope volume envelope_volume78896 ų
Hydration-shell volume shell_volume27734 ų
Envelope diameter envelope_diameter75.2
Shell Rg shell_rg30.83
Envelope Rg envelope_rg23.46
Shape Rg shape_rg23.60
Total Rg total_rg24.69
Total atoms total_atoms3610
Residues n_residues471
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 dmax73.1
Rg (real space) rg_real24.81
Rg uncertainty (real space) rg_real_error0.30
I(0) (real space) i0_real4.4080e+07
I(0) uncertainty (real space) i0_real_error4.7120e+05
Rg (reciprocal space) rg_reciprocal24.86
I(0) (reciprocal space) i0_reciprocal44080000.0000
Solution quality estimate total_estimate0.9159
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary32.5
Skewness Skewness skewness0.077
Kurtosis Kurtosis kurtosis-0.589
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6706000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.980; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.971

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id7mhwA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology128 — Lipocalin
Homologous superfamily homologous superfamily10

8. Citations (1)

9. Files and Curves (10)