1w28

Conformational flexibility of the C-terminus with implications for substrate binding and catalysis in a new crystal form of deacetoxycephalosporin C synthase

Method: X-RAY DIFFRACTION Dmax: 61.9 Å Quality: EXCELLENT

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

DEACETOXYCEPHALOSPORIN C SYNTHASE

STREPTOMYCES CLAVULIGERUS

UniProt P18548

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 1–311 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 8;100 MM HEPES-NAOH PH 8, 0.9-1.1 M AMSO4 Resolution 2.30 Å R-free 0.223

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.

16 other PDB entries and 17 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CEFE_STRCL
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 21–331; UniProt 1–311

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 1w28

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1w28
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1w28
Deposition date deposition_date2004-06-30
Structure title titleConformational flexibility of the C-terminus with implications for substrate binding and catalysis in a new crystal form of deacetoxycephalosporin C synthase
Keywords keywordsOXIDOREDUCTASE, CEPHALOSPORIN, PENICILLIN, MONONUCLEAR FERROUS ENZYMES, 2-OXOGLUTARATE DEPENDENT OXYGENASES; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.97
Radius of gyration Rg (electron density) rg_electron18.64
Forward intensity I(0) i016219500.00
Molecular weight molecular_weight29927.0 kDa
Excluded volume excluded_volume37262 ų
Envelope volume envelope_volume44174 ų
Hydration-shell volume shell_volume19686 ų
Envelope diameter envelope_diameter62.9
Shell Rg shell_rg25.07
Envelope Rg envelope_rg18.90
Shape Rg shape_rg18.63
Total Rg total_rg19.60
Total atoms total_atoms2109
Residues n_residues272
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 dmax61.9
Rg (real space) rg_real19.85
Rg uncertainty (real space) rg_real_error0.25
I(0) (real space) i0_real1.6220e+07
I(0) uncertainty (real space) i0_real_error1.9040e+05
Rg (reciprocal space) rg_reciprocal19.87
I(0) (reciprocal space) i0_reciprocal16220000.0000
Solution quality estimate total_estimate0.9037
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.3
Skewness Skewness skewness0.170
Kurtosis Kurtosis kurtosis-0.430
Angular range angular_range— – 0.4000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3810000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.918; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.994

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1w28a_
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_id1w28A00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily330 — B-lactam Antibiotic, Isopenicillin N Synthase; Chain

8. Citations (1)

9. Files and Curves (10)