7lk8

Crystal structure of KPC-2 T215P mutant

Method: X-RAY DIFFRACTION Dmax: 79.6 Å Quality: EXCELLENT

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

Beta-lactamase

Klebsiella pneumoniae

UniProt Q93LQ9

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 30–289 Mutation:T215P NA SODIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.15;298 K;2.5M NaCl, 0.1M Sodium Acetate pH:5.15 Resolution 1.43 Å R-free 0.186
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 30–289 Mutation:T215P NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.15;298 K;2.5M NaCl, 0.1M Sodium Acetate pH:5.15 Resolution 1.43 Å R-free 0.186

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.

9 other PDB entries and 29 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q93LQ9_KLEPN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–260; UniProt 30–289 Author chain B; PDBConstruct 1–260; UniProt 30–289

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 7lk8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7lk8
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7lk8
Deposition date deposition_date2021-02-01
Structure title titleCrystal structure of KPC-2 T215P mutant
Keywords keywordsKPC, Carbapenemase, Beta-lactamase, Hydrolase, Antibiotic Resistance, Enzyme, Beta-lactam, antibiotics; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.68
Radius of gyration Rg (electron density) rg_electron24.79
Forward intensity I(0) i050779200.00
Molecular weight molecular_weight55135.0 kDa
Excluded volume excluded_volume68949 ų
Envelope volume envelope_volume82140 ų
Hydration-shell volume shell_volume27329 ų
Envelope diameter envelope_diameter80.3
Shell Rg shell_rg31.99
Envelope Rg envelope_rg24.74
Shape Rg shape_rg24.78
Total Rg total_rg25.62
Total atoms total_atoms3887
Residues n_residues520
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 dmax79.6
Rg (real space) rg_real25.62
Rg uncertainty (real space) rg_real_error0.50
I(0) (real space) i0_real5.0780e+07
I(0) uncertainty (real space) i0_real_error6.4170e+05
Rg (reciprocal space) rg_reciprocal25.64
I(0) (reciprocal space) i0_reciprocal50780000.0000
Solution quality estimate total_estimate0.9113
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.3
Skewness Skewness skewness0.205
Kurtosis Kurtosis kurtosis-0.636
Angular range angular_range— – 0.3100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha11960000.0000
Real-space data points n_real_points63
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.956; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.976

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd7lk8a_
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.3 — beta-lactamase/transpeptidase-like
Superfamily Superfamily superfamilye.3.1 — beta-lactamase/transpeptidase-like
Family Family familye.3.1.0 — automated matches
Domain ID domain_idd7lk8b_
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.3 — beta-lactamase/transpeptidase-like
Superfamily Superfamily superfamilye.3.1 — beta-lactamase/transpeptidase-like
Family Family familye.3.1.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id7lk8A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology710 — Beta-lactamase
Homologous superfamily homologous superfamily10 — DD-peptidase/beta-lactamase superfamily
Domain ID domain_id7lk8B01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology710 — Beta-lactamase
Homologous superfamily homologous superfamily10 — DD-peptidase/beta-lactamase superfamily

8. Citations (1)

9. Files and Curves (10)