8zrz

The 1.26 angstrom resolution structure of Bacillus cereus beta-amylase in complex with maltose

Method: X-RAY DIFFRACTION Dmax: 82.1 Å Quality: EXCELLENT

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

Beta-amylase

Bacillus cereus

UniProt P36924

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Monomer Protein × 1 其他Polymer 5 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 31–546 Not recorded alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 3 alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose × 1 alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose × 1 CA CALCIUM ION × 1 SO4 SULFATE ION × 1 GOL GLYCEROL × 8 BGC beta-D-glucopyranose × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;291 K;HANGING DROP VAPOR DIFFUSION AGAINST 0.1 M PHOSPHATE BUFFER PH 6.5, 15% PEG 6000 AND 5% SATN. AMMONIUM SULFATE WITH A PROTEIN CONCENTRATION OF 15MG/ML. Resolution 1.26 Å R-free 0.165

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.

12 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name AMYB_BACCE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–516; UniProt 31–546

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 8zrz

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8zrz
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8zrz
Deposition date deposition_date2024-06-05
Structure title titleThe 1.26 angstrom resolution structure of Bacillus cereus beta-amylase in complex with maltose
Keywords keywordsBeta-amylase, Complex with maltose, Bacillus cereus, digestion of starch granule, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.46
Radius of gyration Rg (electron density) rg_electron25.58
Forward intensity I(0) i060398300.00
Molecular weight molecular_weight61336.0 kDa
Excluded volume excluded_volume76848 ų
Envelope volume envelope_volume88866 ų
Hydration-shell volume shell_volume29354 ų
Envelope diameter envelope_diameter87.1
Shell Rg shell_rg32.49
Envelope Rg envelope_rg26.03
Shape Rg shape_rg25.55
Total Rg total_rg26.42
Total atoms total_atoms4318
Residues n_residues516
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 dmax82.1
Rg (real space) rg_real26.46
Rg uncertainty (real space) rg_real_error0.56
I(0) (real space) i0_real6.0400e+07
I(0) uncertainty (real space) i0_real_error8.5090e+05
Rg (reciprocal space) rg_reciprocal26.46
I(0) (reciprocal space) i0_reciprocal60400000.0000
Solution quality estimate total_estimate0.9056
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.4
Skewness Skewness skewness0.341
Kurtosis Kurtosis kurtosis-0.449
Angular range angular_range— – 0.3000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha13420000.0000
Real-space data points n_real_points61
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.941; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.956

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

8. Citations (1)

9. Files and Curves (10)