1efc

INTACT ELONGATION FACTOR FROM E.COLI

Method: X-RAY DIFFRACTION Dmax: 107.7 Å Quality: GOOD

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

PROTEIN (ELONGATION FACTOR)

Escherichia coli

UniProt P0A6N1

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 2–394 Not recorded MG MAGNESIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;pH 7.5 Resolution 2.05 Å R-free 0.268
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–394 Not recorded MG MAGNESIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;pH 7.5 Resolution 2.05 Å R-free 0.268

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.

13 other PDB entries and 23 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name EFTU_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–393; UniProt 2–394 Author chain B; PDBConstruct 1–393; UniProt 2–394

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 1efc

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1efc
Deposition date deposition_date1998-11-24
Structure title titleINTACT ELONGATION FACTOR FROM E.COLI
Keywords keywordsTRANSPORT AND PROTECTION PROTEIN, RNA BINDING PROTEIN; RNA BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier33.88
Radius of gyration Rg (electron density) rg_electron33.37
Forward intensity I(0) i0116087000.00
Molecular weight molecular_weight85396.0 kDa
Excluded volume excluded_volume106760 ų
Envelope volume envelope_volume139960 ų
Hydration-shell volume shell_volume34809 ų
Envelope diameter envelope_diameter110.9
Shell Rg shell_rg40.02
Envelope Rg envelope_rg32.81
Shape Rg shape_rg33.33
Total Rg total_rg34.03
Total atoms total_atoms5998
Residues n_residues772
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 dmax107.7
Rg (real space) rg_real33.86
Rg uncertainty (real space) rg_real_error0.86
I(0) (real space) i0_real1.1610e+08
I(0) uncertainty (real space) i0_real_error1.9110e+06
Rg (reciprocal space) rg_reciprocal33.88
I(0) (reciprocal space) i0_reciprocal116100000.0000
Solution quality estimate total_estimate0.8931
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks0
Primary peak position r_peak_primary
Skewness Skewness skewness0.193
Kurtosis Kurtosis kurtosis-0.703
Angular range angular_range— – 0.2350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16220000.0000
Real-space data points n_real_points48
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.950; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.952; Smooth: 0.804

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd1efca1
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.3 — Translation proteins
Family Family familyb.43.3.1 — Elongation factors
Domain ID domain_idd1efca2
Class classb — All beta proteins
Fold Fold foldb.44 — Elongation factor/aminomethyltransferase common domain
Superfamily Superfamily superfamilyb.44.1 — EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain
Family Family familyb.44.1.1 — EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain
Domain ID domain_idd1efca3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins
Domain ID domain_idd1efcb1
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.3 — Translation proteins
Family Family familyb.43.3.1 — Elongation factors
Domain ID domain_idd1efcb2
Class classb — All beta proteins
Fold Fold foldb.44 — Elongation factor/aminomethyltransferase common domain
Superfamily Superfamily superfamilyb.44.1 — EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain
Family Family familyb.44.1.1 — EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain
Domain ID domain_idd1efcb3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins

CATH v4.4 (6 domains)

Domain ID domain_id1efcA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id1efcA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily10 — Translation factors
Domain ID domain_id1efcA03
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily10 — Translation factors
Domain ID domain_id1efcB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id1efcB02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily10 — Translation factors
Domain ID domain_id1efcB03
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily10 — Translation factors

8. Citations (6)

9. Files and Curves (10)