1pi5

Structure of N289A mutant of AmpC in complex with SM2, carboxyphenylglycylboronic acid bearing the cephalothin R1 side chain

Method: X-RAY DIFFRACTION Dmax: 101.0 Å Quality: GOOD

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

Beta-lactamase

Escherichia coli

UniProt P00811

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 20–377 Fragment:AmpC Mutation:N289A PO4 PHOSPHATE ION × 1 K POTASSIUM ION × 1 SM2 (1R)-1-(2-THIENYLACETYLAMINO)-1-(3-CARBOXYPHENYL)METHYLBORONIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.7;295 K;Potassium Phosphate Buffer , pH 8.7, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 1.49 Å R-free 0.168
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 20–377 Fragment:AmpC Mutation:N289A K POTASSIUM ION × 1 SM2 (1R)-1-(2-THIENYLACETYLAMINO)-1-(3-CARBOXYPHENYL)METHYLBORONIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.7;295 K;Potassium Phosphate Buffer , pH 8.7, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 1.49 Å R-free 0.168

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.

114 other PDB entries and 228 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name AMPC_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–358; UniProt 20–377 Author chain B; PDBConstruct 1–358; UniProt 20–377

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 1pi5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1pi5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1pi5
Deposition date deposition_date2003-05-29
Structure title titleStructure of N289A mutant of AmpC in complex with SM2, carboxyphenylglycylboronic acid bearing the cephalothin R1 side chain
Keywords keywordsEnzyme Inhibitor Complex, Beta-Lactamase, hydrolase; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier29.32
Radius of gyration Rg (electron density) rg_electron28.67
Forward intensity I(0) i095711800.00
Molecular weight molecular_weight80119.0 kDa
Excluded volume excluded_volume101360 ų
Envelope volume envelope_volume118400 ų
Hydration-shell volume shell_volume34707 ų
Envelope diameter envelope_diameter105.4
Shell Rg shell_rg35.39
Envelope Rg envelope_rg28.94
Shape Rg shape_rg28.67
Total Rg total_rg29.31
Total atoms total_atoms5665
Residues n_residues716
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 dmax101.0
Rg (real space) rg_real29.38
Rg uncertainty (real space) rg_real_error0.85
I(0) (real space) i0_real9.5710e+07
I(0) uncertainty (real space) i0_real_error1.4920e+06
Rg (reciprocal space) rg_reciprocal29.35
I(0) (reciprocal space) i0_reciprocal95710000.0000
Solution quality estimate total_estimate0.8657
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.9
Skewness Skewness skewness0.412
Kurtosis Kurtosis kurtosis-0.391
Angular range angular_range— – 0.2700 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha35310000.0000
Real-space data points n_real_points55
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.772; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.961; Smooth: 0.974

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1pi5a_
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.3.1.1 — beta-Lactamase/D-ala carboxypeptidase
Domain ID domain_idd1pi5b_
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.3.1.1 — beta-Lactamase/D-ala carboxypeptidase

CATH v4.4 (2 domains)

Domain ID domain_id1pi5A00
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_id1pi5B00
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)