2kho

NMR-RDC / XRAY structure of E. coli HSP70 (DNAK) chaperone (1-605) complexed with ADP and substrate

Method: SOLUTION NMR Dmax: 136.8 Å Quality: REASONABLE

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

Heat shock protein 70

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–605 Not recorded No other associated polymer SOLUTION NMR NMR measurement conditions:pH 7.2;300 K;Ionic strength (raw mmCIF value) 0.05;Pressure AMBIENT NMR sample composition:0.2 MM [U-100% 13C U-100% 15N U-80% 2H] HSP70, 10 MM POTASSIUM CHLORIDE, 25 MM TRIS, 10 MM DTT, 5 MM MGCL2, 5 MM ADP, 10 MM POTASSIUM PHOSPHATE, 0.2 MM SODIUM AZIDE, 2 MM NRLLLTG, 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.

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 1–605; UniProt 1–605

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 2kho

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2kho
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id2kho
Deposition date deposition_date2009-04-10
Structure title titleNMR-RDC / XRAY structure of E. coli HSP70 (DNAK) chaperone (1-605) complexed with ADP and substrate
Keywords keywords;MOLECULAR CHAPERONE, HSP70, PEPTIDE BINDING, PROTEIN FOLDING, ATP-binding, Cell inner membrane, Cell membrane, Chaperone, DNA replication, Membrane, Nucleotide-binding, Phosphoprotein, Stress response, TRANSCRIPTION ;; CHAPERONE
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier37.11
Radius of gyration Rg (electron density) rg_electron37.63
Forward intensity I(0) i064753500.00
Molecular weight molecular_weight64024.0 kDa
Excluded volume excluded_volume80246 ų
Envelope volume envelope_volume114370 ų
Hydration-shell volume shell_volume28883 ų
Envelope diameter envelope_diameter144.9
Shell Rg shell_rg37.47
Envelope Rg envelope_rg38.14
Shape Rg shape_rg37.61
Total Rg total_rg37.69
Total atoms total_atoms5078
Residues n_residues600
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 dmax136.8
Rg (real space) rg_real37.90
Rg uncertainty (real space) rg_real_error1.82
I(0) (real space) i0_real6.4750e+07
I(0) uncertainty (real space) i0_real_error1.2970e+06
Rg (reciprocal space) rg_reciprocal37.41
I(0) (reciprocal space) i0_reciprocal64720000.0000
Solution quality estimate total_estimate0.7023
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary31.8
Skewness Skewness skewness0.695
Kurtosis Kurtosis kurtosis-0.195
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6196000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.389; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.187; Smooth: 0.773

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id2khoA01
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_id2khoA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology30 — Defensin A-like
Homologous superfamily homologous superfamily30
Domain ID domain_id2khoA03
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_id2khoA04
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_id2khoA05
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_id2khoA06
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)