1ar1

Structure at 2.7 Angstrom Resolution of the Paracoccus Denitrificans two-subunit Cytochrome C Oxidase Complexed with an Antibody Fv Fragment

Method: X-RAY DIFFRACTION Dmax: 115.0 Å Quality: GOOD

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

CYTOCHROME C OXIDASE

Paracoccus denitrificans

UniProt P98002

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–558 Not recorded CYTOCHROME C OXIDASE × 1 (P08306) ANTIBODY FV FRAGMENT × 1 ANTIBODY FV FRAGMENT × 1 CU COPPER (II) ION × 3 MG MAGNESIUM ION × 1 CA CALCIUM ION × 1 HEA HEME-A × 2 LDA LAURYL DIMETHYLAMINE-N-OXIDE × 9 X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.5;pH 5.5 Resolution 2.70 Å R-free 0.261

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.

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CX1B_PARDE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–558; UniProt 1–558

CYTOCHROME C OXIDASE

Paracoccus denitrificans

UniProt P08306

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain B; UniProt 1–298 Not recorded CYTOCHROME C OXIDASE × 1 (P98002) ANTIBODY FV FRAGMENT × 1 ANTIBODY FV FRAGMENT × 1 CU COPPER (II) ION × 3 MG MAGNESIUM ION × 1 CA CALCIUM ION × 1 HEA HEME-A × 2 LDA LAURYL DIMETHYLAMINE-N-OXIDE × 9 X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.5;pH 5.5 Resolution 2.70 Å R-free 0.261

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.

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name COX2_PARDE
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–298; UniProt 1–298

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 1ar1

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1ar1
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1ar1
Deposition date deposition_date1997-08-08
Structure title titleStructure at 2.7 Angstrom Resolution of the Paracoccus Denitrificans two-subunit Cytochrome C Oxidase Complexed with an Antibody Fv Fragment
Keywords keywords;COMPLEX (OXIDOREDUCTASE-ANTIBODY), ELECTRON TRANSPORT, TRANSMEMBRANE, CYTOCHROME OXIDASE, ANTIBODY COMPLEX, COMPLEX (OXIDOREDUCTASE-ANTIBODY) complex ;; COMPLEX (OXIDOREDUCTASE/ANTIBODY)
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier33.85
Radius of gyration Rg (electron density) rg_electron33.13
Forward intensity I(0) i0174128000.00
Molecular weight molecular_weight116060.0 kDa
Excluded volume excluded_volume148940 ų
Envelope volume envelope_volume170100 ų
Hydration-shell volume shell_volume43595 ų
Envelope diameter envelope_diameter123.7
Shell Rg shell_rg39.21
Envelope Rg envelope_rg33.61
Shape Rg shape_rg33.12
Total Rg total_rg33.64
Total atoms total_atoms8191
Residues n_residues1007
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 dmax115.0
Rg (real space) rg_real34.00
Rg uncertainty (real space) rg_real_error0.99
I(0) (real space) i0_real1.7410e+08
I(0) uncertainty (real space) i0_real_error3.1070e+06
Rg (reciprocal space) rg_reciprocal33.91
I(0) (reciprocal space) i0_reciprocal174100000.0000
Solution quality estimate total_estimate0.8568
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary34.3
Skewness Skewness skewness0.490
Kurtosis Kurtosis kurtosis-0.314
Angular range angular_range— – 0.2350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha40550000.0000
Real-space data points n_real_points48
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.796; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.855; Smooth: 0.890

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (10)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (5 domains)

Domain ID domain_idd1ar1a_
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_idd1ar1b1
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_idd1ar1b2
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_idd1ar1c_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd1ar1d_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)

CATH v4.4 (5 domains)

Domain ID domain_id1ar1A00
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_id1ar1B01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily420 — Cupredoxins - blue copper proteins
Domain ID domain_id1ar1B02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology287 — Helix Hairpins
Homologous superfamily homologous superfamily90
Domain ID domain_id1ar1C00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id1ar1D00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)