7rb7

Room temperature structure of hAChE in complex with substrate analog 4K-TMA and MMB4 oxime

Method: X-RAY DIFFRACTION Dmax: 105.3 Å Quality: EXCELLENT

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

Acetylcholinesterase

Homo sapiens

UniProt P22303

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 32–578 Chain B; UniProt 32–578 Not recorded NWA 4,4-DIHYDROXY-N,N,N-TRIMETHYLPENTAN-1-AMINIUM × 2 3VI 1,1'-methylenebis{4-[(E)-(hydroxyimino)methyl]pyridin-1-ium} × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;283 K;100 mM HEPES, pH 7.5, 10 mM sodium citrate, 6-8% PEG6000 Resolution 2.60 Å R-free 0.214

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.

77 other PDB entries and 84 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACES_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 4–550; UniProt 32–578 Author chain B; PDBConstruct 4–550; UniProt 32–578

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 7rb7

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7rb7
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7rb7
Deposition date deposition_date2021-07-05
Structure title titleRoom temperature structure of hAChE in complex with substrate analog 4K-TMA and MMB4 oxime
Keywords keywordsacetylcholine esterase, serine hydrolase, tetrahedral intermediate, oxime reactivator, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier33.44
Radius of gyration Rg (electron density) rg_electron32.58
Forward intensity I(0) i0214255000.00
Molecular weight molecular_weight118990.0 kDa
Excluded volume excluded_volume149390 ų
Envelope volume envelope_volume182920 ų
Hydration-shell volume shell_volume45473 ų
Envelope diameter envelope_diameter111.3
Shell Rg shell_rg40.42
Envelope Rg envelope_rg32.41
Shape Rg shape_rg32.55
Total Rg total_rg33.27
Total atoms total_atoms8425
Residues n_residues1080
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 dmax105.3
Rg (real space) rg_real33.38
Rg uncertainty (real space) rg_real_error0.75
I(0) (real space) i0_real2.1430e+08
I(0) uncertainty (real space) i0_real_error3.2400e+06
Rg (reciprocal space) rg_reciprocal33.42
I(0) (reciprocal space) i0_reciprocal214300000.0000
Solution quality estimate total_estimate0.9038
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary38.1
Skewness Skewness skewness0.259
Kurtosis Kurtosis kurtosis-0.559
Angular range angular_range— – 0.2350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha56100000.0000
Real-space data points n_real_points48
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.940; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.928

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)