6nj4

Thermostable variant of human carbonic anhydrase with disordered tetrazine 2.0 reacted with strained trans-cyclooctene at site 233

Method: X-RAY DIFFRACTION Dmax: 69.8 Å Quality: GOOD

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

Carbonic anhydrase 2

Homo sapiens

UniProt P00918

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 3–260 Mutation:A64T, L99H, K153N, L223S, L239P, A247T Non-standard monomer:Yes (specific site not provided by mmCIF) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;278 K;0.2 M SODIUM CHLORIDE, 0.1 M TRIS PH 8.5, 25% PEG 3350, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 278K Resolution 1.30 Å R-free 0.178

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.

1239 other PDB entries and 1272 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CAH2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–260; UniProt 3–260

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 6nj4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6nj4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6nj4
Deposition date deposition_date2019-01-02
Structure title titleThermostable variant of human carbonic anhydrase with disordered tetrazine 2.0 reacted with strained trans-cyclooctene at site 233
Keywords keywordsgenetic code expansion, thermostability, protein engineering, LYASE; LYASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.13
Radius of gyration Rg (electron density) rg_electron17.73
Forward intensity I(0) i016027300.00
Molecular weight molecular_weight29989.0 kDa
Excluded volume excluded_volume37354 ų
Envelope volume envelope_volume42047 ų
Hydration-shell volume shell_volume19371 ų
Envelope diameter envelope_diameter71.5
Shell Rg shell_rg24.52
Envelope Rg envelope_rg18.17
Shape Rg shape_rg17.73
Total Rg total_rg18.68
Total atoms total_atoms4147
Residues n_residues264
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 dmax69.8
Rg (real space) rg_real19.00
Rg uncertainty (real space) rg_real_error0.58
I(0) (real space) i0_real1.6030e+07
I(0) uncertainty (real space) i0_real_error2.2880e+05
Rg (reciprocal space) rg_reciprocal19.02
I(0) (reciprocal space) i0_reciprocal16030000.0000
Solution quality estimate total_estimate0.7528
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary25.2
Skewness Skewness skewness0.144
Kurtosis Kurtosis kurtosis-0.286
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3039000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.599; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.985; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd6nj4a1
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
Domain ID domain_idd6nj4a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd6nj4a3
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

8. Citations (1)

9. Files and Curves (10)