1a2f

PROBING THE STRENGTH AND CHARACTER OF AN ASP-HIS-X HYDROGEN BOND BY INTRODUCING BURIED CHARGES

Method: X-RAY DIFFRACTION Dmax: 62.6 Å Quality: GOOD

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

CYTOCHROME C PEROXIDASE

Saccharomyces cerevisiae

UniProt P00431

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 71–361 Mutation:M172K HEM PROTOPORPHYRIN IX CONTAINING FE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:dialysis;DIALYSIS AGAINST DISTILLED WATER, dialysis Resolution 2.10 Å

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.

175 other PDB entries and 193 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CCPR_YEAST
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–291; UniProt 71–361

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 1a2f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1a2f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1a2f
Deposition date deposition_date1998-01-02
Structure title titlePROBING THE STRENGTH AND CHARACTER OF AN ASP-HIS-X HYDROGEN BOND BY INTRODUCING BURIED CHARGES
Keywords keywordsOXIDOREDUCTASE, PEROXIDASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.52
Radius of gyration Rg (electron density) rg_electron18.41
Forward intensity I(0) i019471600.00
Molecular weight molecular_weight33791.0 kDa
Excluded volume excluded_volume42233 ų
Envelope volume envelope_volume46802 ų
Hydration-shell volume shell_volume20755 ų
Envelope diameter envelope_diameter66.6
Shell Rg shell_rg25.24
Envelope Rg envelope_rg18.73
Shape Rg shape_rg18.38
Total Rg total_rg19.42
Total atoms total_atoms2909
Residues n_residues291
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 dmax62.6
Rg (real space) rg_real19.37
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.9470e+07
I(0) uncertainty (real space) i0_real_error2.7480e+05
Rg (reciprocal space) rg_reciprocal19.40
I(0) (reciprocal space) i0_reciprocal19470000.0000
Solution quality estimate total_estimate0.8069
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.6
Skewness Skewness skewness0.142
Kurtosis Kurtosis kurtosis-0.371
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5622000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.831; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; 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 (1 domains)

Domain ID domain_idd1a2fa_
Class classa — All alpha proteins
Fold Fold folda.93 — Heme-dependent peroxidases
Superfamily Superfamily superfamilya.93.1 — Heme-dependent peroxidases
Family Family familya.93.1.1 — CCP-like

CATH v4.4 (2 domains)

Domain ID domain_id1a2fA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology520 — Peroxidase; domain 1
Homologous superfamily homologous superfamily10
Domain ID domain_id1a2fA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology420 — Peroxidase; domain 2
Homologous superfamily homologous superfamily10 — Peroxidase, domain 2

8. Citations (2)

9. Files and Curves (10)