1ehk

CRYSTAL STRUCTURE OF THE ABERRANT BA3-CYTOCHROME-C OXIDASE FROM THERMUS THERMOPHILUS

Method: X-RAY DIFFRACTION Dmax: 86.2 Å Quality: REASONABLE

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

BA3-TYPE CYTOCHROME-C OXIDASE

OrganismNot specified

UniProt Q5SJ79

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–562 Fragment:SUBUNIT I BA3-TYPE CYTOCHROME-C OXIDASE × 1 (Q5SJ80) BA3-TYPE CYTOCHROME-C OXIDASE × 1 (P82543) BNG nonyl beta-D-glucopyranoside × 3 CU COPPER (II) ION × 1 HEM PROTOPORPHYRIN IX CONTAINING FE × 1 HAS HEME-AS × 1 CUA DINUCLEAR COPPER ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;PEG 2000, Bis-Tris buffer, nonyl-beta-D-glucoside, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.40 Å R-free 0.264

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.

40 other PDB entries and 43 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name COX1_THET8
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–562; UniProt 1–562

BA3-TYPE CYTOCHROME-C OXIDASE

OrganismNot specified

UniProt Q5SJ80

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 1–168 Fragment:SUBUNIT II BA3-TYPE CYTOCHROME-C OXIDASE × 1 (Q5SJ79) BA3-TYPE CYTOCHROME-C OXIDASE × 1 (P82543) BNG nonyl beta-D-glucopyranoside × 3 CU COPPER (II) ION × 1 HEM PROTOPORPHYRIN IX CONTAINING FE × 1 HAS HEME-AS × 1 CUA DINUCLEAR COPPER ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;PEG 2000, Bis-Tris buffer, nonyl-beta-D-glucoside, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.40 Å R-free 0.264

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.

40 other PDB entries and 43 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name COX2_THET8
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–168; UniProt 1–168

BA3-TYPE CYTOCHROME-C OXIDASE

OrganismNot specified

UniProt P82543

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 2–34 Fragment:SUBUNIT IIA BA3-TYPE CYTOCHROME-C OXIDASE × 1 (Q5SJ79) BA3-TYPE CYTOCHROME-C OXIDASE × 1 (Q5SJ80) BNG nonyl beta-D-glucopyranoside × 3 CU COPPER (II) ION × 1 HEM PROTOPORPHYRIN IX CONTAINING FE × 1 HAS HEME-AS × 1 CUA DINUCLEAR COPPER ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;293 K;PEG 2000, Bis-Tris buffer, nonyl-beta-D-glucoside, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.40 Å R-free 0.264

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.

39 other PDB entries and 42 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name COXA_THET8
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–33; UniProt 2–34

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 1ehk

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1ehk
Deposition date deposition_date2000-02-21
Structure title titleCRYSTAL STRUCTURE OF THE ABERRANT BA3-CYTOCHROME-C OXIDASE FROM THERMUS THERMOPHILUS
Keywords keywordscytochrome-c oxidase, membrane protein, Thermus thermophilus, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.82
Radius of gyration Rg (electron density) rg_electron25.51
Forward intensity I(0) i088643500.00
Molecular weight molecular_weight85018.0 kDa
Excluded volume excluded_volume110690 ų
Envelope volume envelope_volume119790 ų
Hydration-shell volume shell_volume37311 ų
Envelope diameter envelope_diameter89.8
Shell Rg shell_rg34.52
Envelope Rg envelope_rg26.03
Shape Rg shape_rg25.49
Total Rg total_rg26.55
Total atoms total_atoms6025
Residues n_residues743
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 dmax86.2
Rg (real space) rg_real26.75
Rg uncertainty (real space) rg_real_error0.50
I(0) (real space) i0_real8.8640e+07
I(0) uncertainty (real space) i0_real_error1.0850e+06
Rg (reciprocal space) rg_reciprocal26.77
I(0) (reciprocal space) i0_reciprocal88640000.0000
Solution quality estimate total_estimate0.6643
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary32.1
Skewness Skewness skewness0.317
Kurtosis Kurtosis kurtosis-0.307
Angular range angular_range— – 0.2950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha22620000.0000
Real-space data points n_real_points60
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.870; Stabil: 1.000; Sysdev: 0.089; Positv: 1.000; Valcen: 1.000; Smooth: 0.754

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

7. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1ehka_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.24 — Cytochrome c oxidase subunit I-like
Superfamily Superfamily superfamilyf.24.1 — Cytochrome c oxidase subunit I-like
Family Family familyf.24.1.1 — Cytochrome c oxidase subunit I-like
Domain ID domain_idd1ehkb1
Class classb — All beta proteins
Fold Fold foldb.6 — Cupredoxin-like
Superfamily Superfamily superfamilyb.6.1 — Cupredoxins
Family Family familyb.6.1.2 — Periplasmic domain of cytochrome c oxidase subunit II
Domain ID domain_idd1ehkb2
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.17 — Transmembrane helix hairpin
Superfamily Superfamily superfamilyf.17.2 — Cytochrome c oxidase subunit II-like, transmembrane region
Family Family familyf.17.2.1 — Cytochrome c oxidase subunit II-like, transmembrane region
Domain ID domain_idd1ehkc_
Class classf — Membrane and cell surface proteins and peptides
Fold Fold foldf.23 — Single transmembrane helix
Superfamily Superfamily superfamilyf.23.9 — Bacterial ba3 type cytochrome c oxidase subunit IIa
Family Family familyf.23.9.1 — Bacterial ba3 type cytochrome c oxidase subunit IIa

CATH v4.4 (3 domains)

Domain ID domain_id1ehkA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology210 — Cytochrome C Oxidase; Chain A
Homologous superfamily homologous superfamily10 — Cytochrome c oxidase-like, subunit I domain
Domain ID domain_id1ehkB01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1070 — Rhopdopsin 7-helix transmembrane proteins
Homologous superfamily homologous superfamily10 — Rhodopsin 7-helix transmembrane proteins
Domain ID domain_id1ehkB02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily420 — Cupredoxins - blue copper proteins

8. Citations (1)

9. Files and Curves (10)