6skt

Crystal structure of bovine carbonic anhydrase II in complex with a benzenesulfonamide-based ligand (SH0)

Method: X-RAY DIFFRACTION Dmax: 57.7 Å Quality: GOOD

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

Carbonic anhydrase 2

OrganismNot specified

UniProt P00921

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 1–260 Not recorded CU COPPER (II) ION × 2 ZN ZINC ION × 1 GOL GLYCEROL × 1 E6B ~{N}-[2-(1~{H}-imidazol-4-yl)ethyl]-4-sulfamoyl-benzamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;291 K;100mM HEPES pH7.5, 14% PEG3350, 20% Glycerol, 5mM CuCl2 Resolution 1.90 Å R-free 0.204

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.

13 other PDB entries and 21 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CAH2_BOVIN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–260; UniProt 1–260

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 6skt

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6skt
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6skt
Deposition date deposition_date2019-08-16
Structure title titleCrystal structure of bovine carbonic anhydrase II in complex with a benzenesulfonamide-based ligand (SH0)
Keywords keywordsCARBONIC ANHYDRASE II, CA2, SULFONAMIDE, COMPLEX, LYASE; LYASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.47
Radius of gyration Rg (electron density) rg_electron17.27
Forward intensity I(0) i015561200.00
Molecular weight molecular_weight29471.0 kDa
Excluded volume excluded_volume36709 ų
Envelope volume envelope_volume40722 ų
Hydration-shell volume shell_volume19114 ų
Envelope diameter envelope_diameter59.5
Shell Rg shell_rg24.05
Envelope Rg envelope_rg17.63
Shape Rg shape_rg17.24
Total Rg total_rg18.35
Total atoms total_atoms2077
Residues n_residues258
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 dmax57.7
Rg (real space) rg_real18.33
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real1.5560e+07
I(0) uncertainty (real space) i0_real_error1.8240e+05
Rg (reciprocal space) rg_reciprocal18.35
I(0) (reciprocal space) i0_reciprocal15560000.0000
Solution quality estimate total_estimate0.8112
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary23.7
Skewness Skewness skewness0.062
Kurtosis Kurtosis kurtosis-0.465
Angular range angular_range— – 0.4300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2750000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.855; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.982; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd6skta_
Class classb — All beta proteins
Fold Fold foldb.74 — Carbonic anhydrase
Superfamily Superfamily superfamilyb.74.1 — Carbonic anhydrase
Family Family familyb.74.1.1 — Carbonic anhydrase

8. Citations (1)

9. Files and Curves (10)