5aqk

Fragment-based screening of HSP70 sheds light on the functional role of ATP-binding site residues

Method: X-RAY DIFFRACTION Dmax: 83.0 Å Quality: GOOD

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

HEAT SHOCK COGNATE 71 KDA PROTEIN

HOMO SAPIENS

UniProt P11142

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 1–381 Fragment:NUCLEOTIDE BINDING DOMAIN, RESIDUES 1-381 BAG FAMILY MOLECULAR CHAPERONE REGULATOR 1 × 1 (Q99933) GDP GUANOSINE-5'-DIPHOSPHATE × 2 GOL GLYCEROL × 3 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 DMS DIMETHYL SULFOXIDE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 8.5;16-26% (W/V) PEG3350, 0.1 M K-NA TARTRATE, 0.1 M TRIS.HCL PH 8.5, 25% (V/V) GLYCEROL AND 100 MM GDP FROM 1 M STOCK AT PH 7.5 Resolution 2.09 Å R-free 0.232

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.

37 other PDB entries and 66 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HSP7C_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 6–386; UniProt 1–381

BAG FAMILY MOLECULAR CHAPERONE REGULATOR 1

HOMO SAPIENS

UniProt Q99933

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 B; UniProt 222–334 Fragment:RESIDUES 222-334 HEAT SHOCK COGNATE 71 KDA PROTEIN × 1 (P11142) GDP GUANOSINE-5'-DIPHOSPHATE × 2 GOL GLYCEROL × 3 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 DMS DIMETHYL SULFOXIDE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 8.5;16-26% (W/V) PEG3350, 0.1 M K-NA TARTRATE, 0.1 M TRIS.HCL PH 8.5, 25% (V/V) GLYCEROL AND 100 MM GDP FROM 1 M STOCK AT PH 7.5 Resolution 2.09 Å R-free 0.232

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.

28 other PDB entries and 47 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BAG1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 6–118; UniProt 222–334

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 5aqk

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5aqk
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5aqk
Deposition date deposition_date2015-09-22
Structure title titleFragment-based screening of HSP70 sheds light on the functional role of ATP-binding site residues
Keywords keywordsHEAT SHOCK PROTEIN, HSP70, HSP72, HSC70, ATPASE, BAG1, CHAPERONE, FRAGMENT; CHAPERONE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.62
Radius of gyration Rg (electron density) rg_electron24.82
Forward intensity I(0) i050486800.00
Molecular weight molecular_weight54087.0 kDa
Excluded volume excluded_volume67257 ų
Envelope volume envelope_volume83485 ų
Hydration-shell volume shell_volume27948 ų
Envelope diameter envelope_diameter90.4
Shell Rg shell_rg32.13
Envelope Rg envelope_rg24.84
Shape Rg shape_rg24.83
Total Rg total_rg25.55
Total atoms total_atoms3798
Residues n_residues488
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 dmax83.0
Rg (real space) rg_real25.53
Rg uncertainty (real space) rg_real_error0.65
I(0) (real space) i0_real5.0490e+07
I(0) uncertainty (real space) i0_real_error7.5750e+05
Rg (reciprocal space) rg_reciprocal25.56
I(0) (reciprocal space) i0_reciprocal50490000.0000
Solution quality estimate total_estimate0.8187
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary73.7
Skewness Skewness skewness0.218
Kurtosis Kurtosis kurtosis-0.407
Angular range angular_range— – 0.3100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha10480000.0000
Real-space data points n_real_points63
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.881; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd5aqka1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.1 — Actin-like ATPase domain
Family Family familyc.55.1.1 — Actin/HSP70
Domain ID domain_idd5aqka2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.1 — Actin-like ATPase domain
Family Family familyc.55.1.1 — Actin/HSP70

CATH v4.4 (5 domains)

Domain ID domain_id5aqkA01
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_id5aqkA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology30 — Defensin A-like
Homologous superfamily homologous superfamily30
Domain ID domain_id5aqkA03
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_id5aqkA04
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_id5aqkB00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily120 — BAG domain

8. Citations (1)

9. Files and Curves (10)