4jn4

Allosteric opening of the polypeptide-binding site when an Hsp70 binds ATP

Method: X-RAY DIFFRACTION Dmax: 144.0 Å Quality: GOOD

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

Chaperone protein DnaK

Escherichia coli

UniProt P0A6Y8

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 2–610 Chain B; UniProt 2–610 Fragment:UNP residues 2-610 Mutation:N432M,Q433G,S434G MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 SO4 SULFATE ION × 11 GOL GLYCEROL × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;273 K;1.8-2.0 M ammonium sulfate, 0.1 M Hepes-NaOH, 2-3% PEG 400, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 273K Resolution 2.30 Å R-free 0.197

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.

52 other PDB entries and 125 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DNAK_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–606; UniProt 2–610 Author chain B; PDBConstruct 2–606; UniProt 2–610

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 4jn4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4jn4
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id4jn4
Deposition date deposition_date2013-03-14
Structure title titleAllosteric opening of the polypeptide-binding site when an Hsp70 binds ATP
Keywords keywords;DnaK, Chaperone, 70kDa heat shock protein (Hsp70), Single-wavelength anomalous diffraction (SAD), native structure determination, multiple crystals ;; CHAPERONE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.25
Radius of gyration Rg (electron density) rg_electron34.63
Forward intensity I(0) i0290663000.00
Molecular weight molecular_weight132180.0 kDa
Excluded volume excluded_volume163770 ų
Envelope volume envelope_volume217050 ų
Hydration-shell volume shell_volume52366 ų
Envelope diameter envelope_diameter152.5
Shell Rg shell_rg40.60
Envelope Rg envelope_rg35.40
Shape Rg shape_rg34.59
Total Rg total_rg35.18
Total atoms total_atoms9275
Residues n_residues1200
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 dmax144.0
Rg (real space) rg_real35.32
Rg uncertainty (real space) rg_real_error1.58
I(0) (real space) i0_real2.9070e+08
I(0) uncertainty (real space) i0_real_error5.1600e+06
Rg (reciprocal space) rg_reciprocal35.28
I(0) (reciprocal space) i0_reciprocal290700000.0000
Solution quality estimate total_estimate0.7714
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary41.6
Skewness Skewness skewness0.506
Kurtosis Kurtosis kurtosis0.165
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha78760000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.401; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.822; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 10 domains

CATH v4.4 (10 domains)

Domain ID domain_id4jn4A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily40 — ATPase, nucleotide binding domain
Domain ID domain_id4jn4A02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily40 — ATPase, nucleotide binding domain
Domain ID domain_id4jn4A03
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology640 — Actin; Chain A, domain 4
Homologous superfamily homologous superfamily10 — ATPase, substrate binding domain, subdomain 4
Domain ID domain_id4jn4A04
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology34 — Substrate Binding Domain Of DNAk; Chain A, domain 1
Homologous superfamily homologous superfamily10 — Substrate Binding Domain Of DNAk; Chain A, domain 1
Domain ID domain_id4jn4A05
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1270 — Substrate Binding Domain Of Dnak; Chain:A; Domain 2
Homologous superfamily homologous superfamily10
Domain ID domain_id4jn4B01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily40 — ATPase, nucleotide binding domain
Domain ID domain_id4jn4B02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily40 — ATPase, nucleotide binding domain
Domain ID domain_id4jn4B03
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology640 — Actin; Chain A, domain 4
Homologous superfamily homologous superfamily10 — ATPase, substrate binding domain, subdomain 4
Domain ID domain_id4jn4B04
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology34 — Substrate Binding Domain Of DNAk; Chain A, domain 1
Homologous superfamily homologous superfamily10 — Substrate Binding Domain Of DNAk; Chain A, domain 1
Domain ID domain_id4jn4B05
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1270 — Substrate Binding Domain Of Dnak; Chain:A; Domain 2
Homologous superfamily homologous superfamily10

8. Citations (1)

9. Files and Curves (10)