2jb4

Isopenicillin N synthase with a 2-thiabicycloheptan-6-one product analogue

Method: X-RAY DIFFRACTION Dmax: 66.6 Å Quality: GOOD

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

Isopenicillin N synthase

Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139)

UniProt P05326

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 1–331 Not recorded A14 (1S,4S,5S,7R)-7-{[(5S)-5-AMINO-5-CARBOXYPENTANOYL]AMINO}-3,3-DIMETHYL-6-OXO-2-THIABICYCLO[3.2.0]HEPTANE-4-CARBOXYLIC ACID × 1 FE FE (III) ION × 1 SO4 SULFATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 8.5;1.0M LITHIUM SULPHATE, 76MM TRIS/HCL, PH 8.5, 2.0MM FERROUS SULPHATE, 6.8 MM SUBSTRATE, 25MG/ML IPNS Resolution 1.30 Å R-free 0.176

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.

88 other PDB entries and 88 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IPNA_EMENI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–331; UniProt 1–331

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 2jb4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2jb4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2jb4
Deposition date deposition_date2006-12-01
Structure title titleIsopenicillin N synthase with a 2-thiabicycloheptan-6-one product analogue
Keywords keywordsANTIBIOTIC BIOSYNTHESIS, PENICILLIN BIOSYNTHESIS, IRON, OXYGENASE, VITAMIN C, METAL-BINDING, OXIDOREDUCTASE, B-LACTAM ANTIBIOTIC; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.66
Radius of gyration Rg (electron density) rg_electron19.30
Forward intensity I(0) i024885900.00
Molecular weight molecular_weight37902.0 kDa
Excluded volume excluded_volume47211 ų
Envelope volume envelope_volume53475 ų
Hydration-shell volume shell_volume22551 ų
Envelope diameter envelope_diameter66.8
Shell Rg shell_rg26.37
Envelope Rg envelope_rg19.62
Shape Rg shape_rg19.28
Total Rg total_rg20.26
Total atoms total_atoms2678
Residues n_residues329
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 dmax66.6
Rg (real space) rg_real20.52
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real2.4890e+07
I(0) uncertainty (real space) i0_real_error3.2520e+05
Rg (reciprocal space) rg_reciprocal20.54
I(0) (reciprocal space) i0_reciprocal24890000.0000
Solution quality estimate total_estimate0.8861
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.0
Skewness Skewness skewness0.137
Kurtosis Kurtosis kurtosis-0.409
Angular range angular_range— – 0.3850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6547000.0000
Real-space data points n_real_points70
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.841; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 1.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2jb4a_
Class classb — All beta proteins
Fold Fold foldb.82 — Double-stranded beta-helix
Superfamily Superfamily superfamilyb.82.2 — Clavaminate synthase-like
Family Family familyb.82.2.1 — Penicillin synthase-like

CATH v4.4 (1 domains)

Domain ID domain_id2jb4A00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily330 — B-lactam Antibiotic, Isopenicillin N Synthase; Chain

8. Citations (2)

9. Files and Curves (10)