1xqs

Crystal structure of the HspBP1 core domain complexed with the fragment of Hsp70 ATPase domain

Method: X-RAY DIFFRACTION Dmax: 123.8 Å Quality: REASONABLE

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

HSPBP1 protein

Homo sapiens

UniProt Q9NZL4

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 84–359 Fragment:core domain (84-359) Mutation:E88G Heat shock 70 kDa protein 1 × 1 (P08107) AMP ADENOSINE MONOPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;PEG8000, Potassium chloride, Magnesium chloride, AMP-PNP, DTT, HEPES KOH, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.90 Å R-free 0.296
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 84–359 Fragment:core domain (84-359) Mutation:E88G Heat shock 70 kDa protein 1 × 1 (P08107) AMP ADENOSINE MONOPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;PEG8000, Potassium chloride, Magnesium chloride, AMP-PNP, DTT, HEPES KOH, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.90 Å R-free 0.296

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.

2 other PDB entries and 6 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HPBP1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–280; UniProt 84–359 Author chain B; PDBConstruct 5–280; UniProt 84–359

Heat shock 70 kDa protein 1

Homo sapiens

UniProt P08107

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 184–371 Fragment:LOBE II OF ATPASE DOMAIN (184-371) HSPBP1 protein × 1 (Q9NZL4) AMP ADENOSINE MONOPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;PEG8000, Potassium chloride, Magnesium chloride, AMP-PNP, DTT, HEPES KOH, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.90 Å R-free 0.296
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 184–371 Fragment:LOBE II OF ATPASE DOMAIN (184-371) HSPBP1 protein × 1 (Q9NZL4) AMP ADENOSINE MONOPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;PEG8000, Potassium chloride, Magnesium chloride, AMP-PNP, DTT, HEPES KOH, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.90 Å R-free 0.296

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.

15 other PDB entries and 25 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HSP71_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 4–191; UniProt 184–371 Author chain D; PDBConstruct 4–191; UniProt 184–371

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 1xqs

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1xqs
Deposition date deposition_date2004-10-13
Structure title titleCrystal structure of the HspBP1 core domain complexed with the fragment of Hsp70 ATPase domain
Keywords keywordsarmadillo repeat, superhelical twist, CHAPERONE; CHAPERONE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.92
Radius of gyration Rg (electron density) rg_electron35.77
Forward intensity I(0) i0149532000.00
Molecular weight molecular_weight96275.0 kDa
Excluded volume excluded_volume119770 ų
Envelope volume envelope_volume157070 ų
Hydration-shell volume shell_volume37826 ų
Envelope diameter envelope_diameter126.9
Shell Rg shell_rg40.74
Envelope Rg envelope_rg35.20
Shape Rg shape_rg35.76
Total Rg total_rg36.17
Total atoms total_atoms6746
Residues n_residues858
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 dmax123.8
Rg (real space) rg_real36.10
Rg uncertainty (real space) rg_real_error1.22
I(0) (real space) i0_real1.4950e+08
I(0) uncertainty (real space) i0_real_error2.6970e+06
Rg (reciprocal space) rg_reciprocal35.99
I(0) (reciprocal space) i0_reciprocal149500000.0000
Solution quality estimate total_estimate0.6426
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary39.4
Skewness Skewness skewness0.443
Kurtosis Kurtosis kurtosis-0.342
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha17230000.0000
Real-space data points n_real_points45
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.836; Stabil: 1.000; Sysdev: 0.028; Positv: 1.000; Valcen: 0.869; Smooth: 0.889

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1xqsa1
Class classa — All alpha proteins
Fold Fold folda.118 — alpha-alpha superhelix
Superfamily Superfamily superfamilya.118.1 — ARM repeat
Family Family familya.118.1.21 — HspBP1 domain
Domain ID domain_idd1xqsb1
Class classa — All alpha proteins
Fold Fold folda.118 — alpha-alpha superhelix
Superfamily Superfamily superfamilya.118.1 — ARM repeat
Family Family familya.118.1.21 — HspBP1 domain

CATH v4.4 (6 domains)

Domain ID domain_id1xqsA00
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology10 — Leucine-rich Repeat Variant
Homologous superfamily homologous superfamily10 — Leucine-rich Repeat Variant
Domain ID domain_id1xqsB00
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology10 — Leucine-rich Repeat Variant
Homologous superfamily homologous superfamily10 — Leucine-rich Repeat Variant
Domain ID domain_id1xqsC01
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_id1xqsC02
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_id1xqsD01
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_id1xqsD02
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

8. Citations (1)

9. Files and Curves (10)