1imp

COLICIN E9 IMMUNITY PROTEIN IM9, NMR, 21 STRUCTURES

Method: SOLUTION NMR Dmax: 43.9 Å Quality: GOOD

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

IM9

OrganismNot specified

UniProt P13479

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 1–86 Not recorded No other associated polymer SOLUTION NMR mmCIF provides none of the parsed experimental conditions Resolution not provided

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.

19 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IMM9_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–86; UniProt 1–86

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 1imp

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1imp
Deposition date deposition_date1996-05-30
Structure title titleCOLICIN E9 IMMUNITY PROTEIN IM9, NMR, 21 STRUCTURES
Keywords keywordsIMMUNITY PROTEIN, COLICIN E9 DNASE INHIBITOR, BACTERIOCIN; BACTERIOCIN
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier12.75
Radius of gyration Rg (electron density) rg_electron12.26
Forward intensity I(0) i0604717000.00
Molecular weight molecular_weight200690.0 kDa
Excluded volume excluded_volume247360 ų
Envelope volume envelope_volume20031 ų
Hydration-shell volume shell_volume12152 ų
Envelope diameter envelope_diameter49.8
Shell Rg shell_rg19.76
Envelope Rg envelope_rg14.53
Shape Rg shape_rg12.23
Total Rg total_rg12.50
Total atoms total_atoms27405
Residues n_residues1806
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 dmax43.9
Rg (real space) rg_real12.69
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real6.0470e+08
I(0) uncertainty (real space) i0_real_error6.4990e+06
Rg (reciprocal space) rg_reciprocal12.70
I(0) (reciprocal space) i0_reciprocal604700000.0000
Solution quality estimate total_estimate0.8528
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary16.1
Skewness Skewness skewness0.179
Kurtosis Kurtosis kurtosis-0.190
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha128600.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.703; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.974

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1impa_
Class classa — All alpha proteins
Fold Fold folda.28 — Acyl carrier protein-like
Superfamily Superfamily superfamilya.28.2 — Colicin E immunity proteins
Family Family familya.28.2.1 — Colicin E immunity proteins

CATH v4.4 (1 domains)

Domain ID domain_id1impA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1200 — Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein; Chain A
Homologous superfamily homologous superfamily20 — Colicin E immunity protein

8. Citations (2)

9. Files and Curves (10)