2olr

Crystal structure of Escherichia coli phosphoenolpyruvate carboxykinase complexed with carbon dioxide, Mg2+, ATP

Method: X-RAY DIFFRACTION Dmax: 79.2 Å Quality: REASONABLE

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

Phosphoenolpyruvate carboxykinase

Escherichia coli K12

UniProt P22259

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–540 Not recorded MG MAGNESIUM ION × 1 CL CHLORIDE ION × 1 CO2 CARBON DIOXIDE × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.4;293 K;8 microL drops: 8 mg/ml protein concentration, 2 mM ATP, 5 mM oxalate, 100 mM sodium acetate (pH 4.4), 200 mM ammonium acetate, 12% PEG 4000, 1 ml resevoir: 100 mM sodium acetate, 200 mM ammonuim acetate, 27% PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.60 Å R-free 0.198

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.

17 other PDB entries and 18 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PPCK_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–540; UniProt 1–540

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 2olr

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2olr
Deposition date deposition_date2007-01-19
Structure title titleCrystal structure of Escherichia coli phosphoenolpyruvate carboxykinase complexed with carbon dioxide, Mg2+, ATP
Keywords keywordscarbon dioxide, carboxykinase, LYASE; LYASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.99
Radius of gyration Rg (electron density) rg_electron22.97
Forward intensity I(0) i058140800.00
Molecular weight molecular_weight58833.0 kDa
Excluded volume excluded_volume73269 ų
Envelope volume envelope_volume84272 ų
Hydration-shell volume shell_volume29636 ų
Envelope diameter envelope_diameter81.3
Shell Rg shell_rg30.95
Envelope Rg envelope_rg23.19
Shape Rg shape_rg22.99
Total Rg total_rg23.79
Total atoms total_atoms4146
Residues n_residues535
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 dmax79.2
Rg (real space) rg_real23.88
Rg uncertainty (real space) rg_real_error0.53
I(0) (real space) i0_real5.8140e+07
I(0) uncertainty (real space) i0_real_error8.9060e+05
Rg (reciprocal space) rg_reciprocal23.91
I(0) (reciprocal space) i0_reciprocal58140000.0000
Solution quality estimate total_estimate0.6742
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary78.0
Skewness Skewness skewness0.261
Kurtosis Kurtosis kurtosis-0.314
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha19020000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.822; Stabil: 1.000; Sysdev: 0.101; Positv: 1.000; Valcen: 1.000; Smooth: 0.990

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2olra1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.91 — PEP carboxykinase-like
Superfamily Superfamily superfamilyc.91.1 — PEP carboxykinase-like
Family Family familyc.91.1.1 — PEP carboxykinase C-terminal domain
Domain ID domain_idd2olra2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.109 — PEP carboxykinase N-terminal domain
Superfamily Superfamily superfamilyc.109.1 — PEP carboxykinase N-terminal domain
Family Family familyc.109.1.1 — PEP carboxykinase N-terminal domain

CATH v4.4 (3 domains)

Domain ID domain_id2olrA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology449 — Phosphoenolpyruvate Carboxykinase; domain 1
Homologous superfamily homologous superfamily10 — Phosphoenolpyruvate Carboxykinase, domain 1
Domain ID domain_id2olrA02
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology8 — Phosphoenolpyruvate Carboxykinase; domain 2
Homologous superfamily homologous superfamily10 — Phosphoenolpyruvate Carboxykinase, domain 2
Domain ID domain_id2olrA03
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology228 — Phosphoenolpyruvate Carboxykinase; domain 3
Homologous superfamily homologous superfamily20

8. Citations (1)

9. Files and Curves (10)