3k19

OmpF porin

Method: X-RAY DIFFRACTION Dmax: 151.3 Å Quality: GOOD

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

Outer membrane protein F

OrganismNot specified

UniProt P02931

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 23–362 Chain B; UniProt 23–362 Chain C; UniProt 23–362 Fragment:sequence database residues 1-340 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;0.4 M NaH2PO4/1.6 M K2HPO4, 0.2M sodium chloride, 0.1M Imidazole pH 8, VAPOR DIFFUSION, temperature 293K Resolution 3.79 Å R-free 0.288
2 Protein homooligomer Homooligomer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain D; UniProt 23–362 Chain E; UniProt 23–362 Chain F; UniProt 23–362 Fragment:sequence database residues 1-340 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;0.4 M NaH2PO4/1.6 M K2HPO4, 0.2M sodium chloride, 0.1M Imidazole pH 8, VAPOR DIFFUSION, temperature 293K Resolution 3.79 Å R-free 0.288
3 Protein homooligomer Homooligomer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain G; UniProt 23–362 Chain H; UniProt 23–362 Chain I; UniProt 23–362 Fragment:sequence database residues 1-340 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;0.4 M NaH2PO4/1.6 M K2HPO4, 0.2M sodium chloride, 0.1M Imidazole pH 8, VAPOR DIFFUSION, temperature 293K Resolution 3.79 Å R-free 0.288
4 Protein homooligomer Homooligomer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain J; UniProt 23–362 Chain K; UniProt 23–362 Chain L; UniProt 23–362 Fragment:sequence database residues 1-340 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;0.4 M NaH2PO4/1.6 M K2HPO4, 0.2M sodium chloride, 0.1M Imidazole pH 8, VAPOR DIFFUSION, temperature 293K Resolution 3.79 Å R-free 0.288

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.

41 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name OMPF_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–340; UniProt 23–362 Author chain B; PDBConstruct 1–340; UniProt 23–362 Author chain C; PDBConstruct 1–340; UniProt 23–362 Author chain D; PDBConstruct 1–340; UniProt 23–362 Author chain E; PDBConstruct 1–340; UniProt 23–362 Author chain F; PDBConstruct 1–340; UniProt 23–362 Author chain G; PDBConstruct 1–340; UniProt 23–362 Author chain H; PDBConstruct 1–340; UniProt 23–362 Author chain I; PDBConstruct 1–340; UniProt 23–362 Author chain J; PDBConstruct 1–340; UniProt 23–362 Author chain K; PDBConstruct 1–340; UniProt 23–362 Author chain L; PDBConstruct 1–340; UniProt 23–362

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 3k19

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3k19
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3k19
Deposition date deposition_date2009-09-26
Structure title titleOmpF porin
Keywords keywords;BETA BARREL, FOSCHOLINE-12, Structural Genomics, PSI-2, Protein Structure Initiative, Center for Structures of Membrane Proteins, CSMP, Cell membrane, Cell outer membrane, Ion transport, Membrane, Phage recognition, Porin, Transmembrane, Transport, TRANSPORT 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_guinier51.36
Radius of gyration Rg (electron density) rg_electron51.56
Forward intensity I(0) i02977690000.00
Molecular weight molecular_weight444870.0 kDa
Excluded volume excluded_volume550010 ų
Envelope volume envelope_volume799530 ų
Hydration-shell volume shell_volume126310 ų
Envelope diameter envelope_diameter154.9
Shell Rg shell_rg59.13
Envelope Rg envelope_rg48.75
Shape Rg shape_rg51.60
Total Rg total_rg51.63
Total atoms total_atoms31524
Residues n_residues4080
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 dmax151.3
Rg (real space) rg_real51.01
Rg uncertainty (real space) rg_real_error0.83
I(0) (real space) i0_real2.9780e+09
I(0) uncertainty (real space) i0_real_error5.0290e+07
Rg (reciprocal space) rg_reciprocal51.64
I(0) (reciprocal space) i0_reciprocal2980000000.0000
Solution quality estimate total_estimate0.8805
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary73.2
Skewness Skewness skewness-0.099
Kurtosis Kurtosis kurtosis-0.591
Angular range angular_range— – 0.1550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha450500000.0000
Real-space data points n_real_points32
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.908; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.946; Smooth: 0.774

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id3k19A00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19B00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19C00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19D00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19E00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19F00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19G00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19H00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19I00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19J00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19K00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin
Domain ID domain_id3k19L00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology160 — Porin
Homologous superfamily homologous superfamily10 — Porin

8. Citations (1)

9. Files and Curves (10)