6ztv

Crystal Structure of catalase HPII from Escherichia coli (serendipitously crystallized)

Method: X-RAY DIFFRACTION Dmax: 134.8 Å Quality: REASONABLE

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

Catalase HPII

OrganismNot specified

UniProt P21179

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 homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–753 Chain B; UniProt 1–753 Chain C; UniProt 1–753 Chain D; UniProt 1–753 Mutation:S99N Non-standard monomer:Yes (specific site not provided by mmCIF) HDD CIS-HEME D HYDROXYCHLORIN GAMMA-SPIROLACTONE × 4 GOL GLYCEROL × 1 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;292 K;0.2 M NaCl, 0.1 M Tris pH 7.5, 20% w/v PEG 4000, 10% MPD Resolution 1.78 Å R-free 0.229

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.

46 other PDB entries and 48 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CATE_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–753; UniProt 1–753 Author chain B; PDBConstruct 1–753; UniProt 1–753 Author chain C; PDBConstruct 1–753; UniProt 1–753 Author chain D; PDBConstruct 1–753; UniProt 1–753

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 6ztv

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id6ztv
Deposition date deposition_date2020-07-20
Structure title titleCrystal Structure of catalase HPII from Escherichia coli (serendipitously crystallized)
Keywords keywordscatalase, hydrogen-peroxide, heme, iron, oxidative stress, artifact crystallization, impurities, contaminations, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier41.78
Radius of gyration Rg (electron density) rg_electron41.47
Forward intensity I(0) i01563530000.00
Molecular weight molecular_weight327350.0 kDa
Excluded volume excluded_volume408810 ų
Envelope volume envelope_volume481860 ų
Hydration-shell volume shell_volume90453 ų
Envelope diameter envelope_diameter145.9
Shell Rg shell_rg50.68
Envelope Rg envelope_rg41.86
Shape Rg shape_rg41.41
Total Rg total_rg42.06
Total atoms total_atoms23158
Residues n_residues2900
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 dmax134.8
Rg (real space) rg_real41.71
Rg uncertainty (real space) rg_real_error0.87
I(0) (real space) i0_real1.5640e+09
I(0) uncertainty (real space) i0_real_error2.7530e+07
Rg (reciprocal space) rg_reciprocal41.78
I(0) (reciprocal space) i0_reciprocal1564000000.0000
Solution quality estimate total_estimate0.6408
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary49.7
Skewness Skewness skewness0.374
Kurtosis Kurtosis kurtosis-0.173
Angular range angular_range— – 0.1900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha651700000.0000
Real-space data points n_real_points39
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.846; Stabil: 1.000; Sysdev: 0.008; Positv: 1.000; Valcen: 0.978; Smooth: 0.787

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd6ztva1
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamilye.5.1 — Heme-dependent catalase-like
Family Family familye.5.1.1 — Heme-dependent catalases
Domain ID domain_idd6ztva2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.16 — Class I glutamine amidotransferase-like
Family Family familyc.23.16.0 — automated matches
Domain ID domain_idd6ztvb1
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamilye.5.1 — Heme-dependent catalase-like
Family Family familye.5.1.1 — Heme-dependent catalases
Domain ID domain_idd6ztvb2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.16 — Class I glutamine amidotransferase-like
Family Family familyc.23.16.0 — automated matches
Domain ID domain_idd6ztvc1
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamilye.5.1 — Heme-dependent catalase-like
Family Family familye.5.1.1 — Heme-dependent catalases
Domain ID domain_idd6ztvc2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.16 — Class I glutamine amidotransferase-like
Family Family familyc.23.16.0 — automated matches
Domain ID domain_idd6ztvd1
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.5 — Heme-dependent catalase-like
Superfamily Superfamily superfamilye.5.1 — Heme-dependent catalase-like
Family Family familye.5.1.1 — Heme-dependent catalases
Domain ID domain_idd6ztvd2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.16 — Class I glutamine amidotransferase-like
Family Family familyc.23.16.0 — automated matches

8. Citations (1)

9. Files and Curves (10)