2kjj

Dynamics of insulin probed by 1H-NMR amide proton exchange anomalous flexibility of the receptor-binding surface

Method: SOLUTION NMR Dmax: 33.2 Å Quality: GOOD

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

Insulin

Homo sapiens

UniProt P01308

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 90–110 Chain B; UniProt 25–54 Fragment:Insulin A chain, UNP residues 90-110 Fragment:Insulin B chain, UNP residues 25-54 Mutation:P28K,K29P No other associated polymer SOLUTION NMR NMR measurement conditions:pH 7.4;298 K;Ionic strength (raw mmCIF value) 0.1;Pressure AMBIENT NMR sample composition:0.5 mM INSULIN A CHAIN-1, 0.5 mM INSULIN B CHAIN-2, 90% H2O/10% D2O | 90% H2O/10% D2O 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.

369 other PDB entries and 583 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name INS_HUMAN
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 1–21; UniProt 90–110 Author chain B; PDBConstruct 1–30; UniProt 25–54

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 2kjj

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2kjj
Deposition date deposition_date2009-05-29
Structure title titleDynamics of insulin probed by 1H-NMR amide proton exchange anomalous flexibility of the receptor-binding surface
Keywords keywords;HORMONE, INSULIN, MUTANT, Carbohydrate metabolism, Cleavage on pair of basic residues, Diabetes mellitus, Disease mutation, Disulfide bond, Glucose metabolism, Pharmaceutical, Secreted ;; HORMONE
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier10.05
Radius of gyration Rg (electron density) rg_electron9.97
Forward intensity I(0) i0196149000.00
Molecular weight molecular_weight116230.0 kDa
Excluded volume excluded_volume144180 ų
Envelope volume envelope_volume10719 ų
Hydration-shell volume shell_volume8316 ų
Envelope diameter envelope_diameter37.4
Shell Rg shell_rg16.68
Envelope Rg envelope_rg11.82
Shape Rg shape_rg9.96
Total Rg total_rg10.13
Total atoms total_atoms15720
Residues n_residues1020
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 dmax33.2
Rg (real space) rg_real10.02
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.9610e+08
I(0) uncertainty (real space) i0_real_error2.0580e+06
Rg (reciprocal space) rg_reciprocal10.02
I(0) (reciprocal space) i0_reciprocal196100000.0000
Solution quality estimate total_estimate0.8083
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary13.4
Skewness Skewness skewness0.156
Kurtosis Kurtosis kurtosis-0.311
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha23330.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.839; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)