5k0g

Crystal Structure of COMT in complex with 4-[5-[1-(4-methoxyphenyl)ethyl]-1H-pyrazol-3-yl]-1,3-dimethylpyrazole

Method: X-RAY DIFFRACTION Dmax: 89.7 Å Quality: REASONABLE

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

Catechol O-methyltransferase

Rattus norvegicus

UniProt P22734

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 2–221 Not recorded NHE 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 6PM 5-[(1S)-1-(4-methoxyphenyl)ethyl]-1',3'-dimethyl-1'H,2H-3,4'-bipyrazole × 1 NA SODIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;295 K;0.1 M TRIS-HCL pH 7, 1.8 M ammonium sulfate, 0.2 M NaCl Resolution 1.89 Å R-free 0.211
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–221 Not recorded NHE 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 6PM 5-[(1S)-1-(4-methoxyphenyl)ethyl]-1',3'-dimethyl-1'H,2H-3,4'-bipyrazole × 1 NA SODIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;295 K;0.1 M TRIS-HCL pH 7, 1.8 M ammonium sulfate, 0.2 M NaCl Resolution 1.89 Å R-free 0.211

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.

96 other PDB entries and 159 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name COMT_RAT
Isoform P22734-2
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–220; UniProt 2–221 Author chain B; PDBConstruct 1–220; UniProt 2–221

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 5k0g

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5k0g
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id5k0g
Deposition date deposition_date2016-05-17
Structure title titleCrystal Structure of COMT in complex with 4-[5-[1-(4-methoxyphenyl)ethyl]-1H-pyrazol-3-yl]-1,3-dimethylpyrazole
Keywords keywordsMETHYLTRANSFERASE, NEUROTRANSMITTER DEGRADATION, CATECHOL, transferase; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.00
Radius of gyration Rg (electron density) rg_electron23.03
Forward intensity I(0) i040504400.00
Molecular weight molecular_weight50042.0 kDa
Excluded volume excluded_volume62952 ų
Envelope volume envelope_volume73149 ų
Hydration-shell volume shell_volume26464 ų
Envelope diameter envelope_diameter100.6
Shell Rg shell_rg29.93
Envelope Rg envelope_rg23.49
Shape Rg shape_rg23.04
Total Rg total_rg23.80
Total atoms total_atoms3506
Residues n_residues439
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 dmax89.7
Rg (real space) rg_real23.98
Rg uncertainty (real space) rg_real_error0.83
I(0) (real space) i0_real4.0500e+07
I(0) uncertainty (real space) i0_real_error5.6860e+05
Rg (reciprocal space) rg_reciprocal23.99
I(0) (reciprocal space) i0_reciprocal40500000.0000
Solution quality estimate total_estimate0.7398
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary26.6
Skewness Skewness skewness0.363
Kurtosis Kurtosis kurtosis-0.223
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha12820000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.579; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.879; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd5k0ga_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.66 — S-adenosyl-L-methionine-dependent methyltransferases
Superfamily Superfamily superfamilyc.66.1 — S-adenosyl-L-methionine-dependent methyltransferases
Family Family familyc.66.1.1 — COMT-like
Domain ID domain_idd5k0gb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.66 — S-adenosyl-L-methionine-dependent methyltransferases
Superfamily Superfamily superfamilyc.66.1 — S-adenosyl-L-methionine-dependent methyltransferases
Family Family familyc.66.1.1 — COMT-like

CATH v4.4 (2 domains)

Domain ID domain_id5k0gA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily150 — Vaccinia Virus protein VP39
Domain ID domain_id5k0gB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily150 — Vaccinia Virus protein VP39

8. Citations (1)

9. Files and Curves (10)