3knr

Bacillus cereus metallo-beta-lactamase Cys221Asp mutant, 1 mM Zn(II)

Method: X-RAY DIFFRACTION Dmax: 95.0 Å Quality: REASONABLE

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

Beta-lactamase 2

Bacillus cereus

UniProt P04190

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 31–257 Mutation:C168D ZN ZINC ION × 2 SO4 SULFATE ION × 1 ACY ACETIC ACID × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.9;293 K;0.1 M Sodium Acetate, 2.8 M Ammonium Sulfate, 1 mM Zinc Sulfate, pH 4.9, Vapor diffusion, hanging drop., temperature 293K Resolution 1.71 Å R-free 0.210
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 31–257 Mutation:C168D ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.9;293 K;0.1 M Sodium Acetate, 2.8 M Ammonium Sulfate, 1 mM Zinc Sulfate, pH 4.9, Vapor diffusion, hanging drop., temperature 293K Resolution 1.71 Å R-free 0.210
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 31–257 Mutation:C168D ZN ZINC ION × 2 SO4 SULFATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.9;293 K;0.1 M Sodium Acetate, 2.8 M Ammonium Sulfate, 1 mM Zinc Sulfate, pH 4.9, Vapor diffusion, hanging drop., temperature 293K Resolution 1.71 Å R-free 0.210
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 31–257 Mutation:C168D ZN ZINC ION × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.9;293 K;0.1 M Sodium Acetate, 2.8 M Ammonium Sulfate, 1 mM Zinc Sulfate, pH 4.9, Vapor diffusion, hanging drop., temperature 293K Resolution 1.71 Å R-free 0.210

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.

43 other PDB entries and 59 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BLA2_BACCE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–227; UniProt 31–257 Author chain B; PDBConstruct 1–227; UniProt 31–257 Author chain C; PDBConstruct 1–227; UniProt 31–257 Author chain D; PDBConstruct 1–227; UniProt 31–257

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 3knr

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3knr
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3knr
Deposition date deposition_date2009-11-12
Structure title titleBacillus cereus metallo-beta-lactamase Cys221Asp mutant, 1 mM Zn(II)
Keywords keywordsMetallo-beta-lactamase, Zn-dependent hydrolase, Antibiotic resistance, Hydrolase, Metal-binding; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier29.71
Radius of gyration Rg (electron density) rg_electron29.04
Forward intensity I(0) i0135689000.00
Molecular weight molecular_weight93284.0 kDa
Excluded volume excluded_volume117330 ų
Envelope volume envelope_volume140720 ų
Hydration-shell volume shell_volume39789 ų
Envelope diameter envelope_diameter98.0
Shell Rg shell_rg36.91
Envelope Rg envelope_rg28.59
Shape Rg shape_rg29.01
Total Rg total_rg29.83
Total atoms total_atoms6552
Residues n_residues837
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 dmax95.0
Rg (real space) rg_real29.57
Rg uncertainty (real space) rg_real_error0.54
I(0) (real space) i0_real1.3570e+08
I(0) uncertainty (real space) i0_real_error2.0990e+06
Rg (reciprocal space) rg_reciprocal29.64
I(0) (reciprocal space) i0_reciprocal135700000.0000
Solution quality estimate total_estimate0.6989
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary41.2
Skewness Skewness skewness0.149
Kurtosis Kurtosis kurtosis-0.496
Angular range angular_range— – 0.2650 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha84170000.0000
Real-space data points n_real_points54
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.900; Stabil: 1.000; Sysdev: 0.135; Positv: 1.000; Valcen: 0.998; Smooth: 0.978

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3knra_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.157 — Metallo-hydrolase/oxidoreductase
Superfamily Superfamily superfamilyd.157.1 — Metallo-hydrolase/oxidoreductase
Family Family familyd.157.1.1 — Zn metallo-beta-lactamase
Domain ID domain_idd3knrb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.157 — Metallo-hydrolase/oxidoreductase
Superfamily Superfamily superfamilyd.157.1 — Metallo-hydrolase/oxidoreductase
Family Family familyd.157.1.1 — Zn metallo-beta-lactamase
Domain ID domain_idd3knrc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.157 — Metallo-hydrolase/oxidoreductase
Superfamily Superfamily superfamilyd.157.1 — Metallo-hydrolase/oxidoreductase
Family Family familyd.157.1.1 — Zn metallo-beta-lactamase
Domain ID domain_idd3knrd_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.157 — Metallo-hydrolase/oxidoreductase
Superfamily Superfamily superfamilyd.157.1 — Metallo-hydrolase/oxidoreductase
Family Family familyd.157.1.1 — Zn metallo-beta-lactamase

CATH v4.4 (4 domains)

Domain ID domain_id3knrA00
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology15 — Metallo-beta-lactamase; Chain A
Homologous superfamily homologous superfamily10 — Ribonuclease Z/Hydroxyacylglutathione hydrolase-like
Domain ID domain_id3knrB00
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology15 — Metallo-beta-lactamase; Chain A
Homologous superfamily homologous superfamily10 — Ribonuclease Z/Hydroxyacylglutathione hydrolase-like
Domain ID domain_id3knrC00
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology15 — Metallo-beta-lactamase; Chain A
Homologous superfamily homologous superfamily10 — Ribonuclease Z/Hydroxyacylglutathione hydrolase-like
Domain ID domain_id3knrD00
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology15 — Metallo-beta-lactamase; Chain A
Homologous superfamily homologous superfamily10 — Ribonuclease Z/Hydroxyacylglutathione hydrolase-like

8. Citations (1)

9. Files and Curves (10)