5lqj

Crystal Structure of COMT in complex with 3-cyclopropyl-5-methyl-4-phenyl-1,2,4-triazole

Method: X-RAY DIFFRACTION Dmax: 123.8 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 1–221 Fragment:SOLUBLE FORM, RESIDUES 44-264 NA SODIUM ION × 1 72N 3-cyclopropyl-5-methyl-4-phenyl-1,2,4-triazole × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 9;295 K;AMMONIUM SULPHATE, CHES, PH 9 Resolution 2.41 Å R-free 0.237
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–221 Chain D; UniProt 1–221 Fragment:SOLUBLE FORM, RESIDUES 44-264 NA SODIUM ION × 1 72N 3-cyclopropyl-5-methyl-4-phenyl-1,2,4-triazole × 2 CL CHLORIDE ION × 1 K POTASSIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 9;295 K;AMMONIUM SULPHATE, CHES, PH 9 Resolution 2.41 Å R-free 0.237
3 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–221 Chain D; UniProt 1–221 Fragment:SOLUBLE FORM, RESIDUES 44-264 NA SODIUM ION × 1 72N 3-cyclopropyl-5-methyl-4-phenyl-1,2,4-triazole × 2 CL CHLORIDE ION × 1 K POTASSIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 9;295 K;AMMONIUM SULPHATE, CHES, PH 9 Resolution 2.41 Å R-free 0.237
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 1–221 Fragment:SOLUBLE FORM, RESIDUES 44-264 NA SODIUM ION × 1 72N 3-cyclopropyl-5-methyl-4-phenyl-1,2,4-triazole × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 9;295 K;AMMONIUM SULPHATE, CHES, PH 9 Resolution 2.41 Å R-free 0.237

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 157 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 1–221; UniProt 1–221 Author chain B; PDBConstruct 1–221; UniProt 1–221 Author chain C; PDBConstruct 1–221; UniProt 1–221 Author chain D; PDBConstruct 1–221; UniProt 1–221

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 5lqj

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5lqj
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5lqj
Deposition date deposition_date2016-08-17
Structure title titleCrystal Structure of COMT in complex with 3-cyclopropyl-5-methyl-4-phenyl-1,2,4-triazole
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_guinier31.01
Radius of gyration Rg (electron density) rg_electron30.35
Forward intensity I(0) i0143493000.00
Molecular weight molecular_weight96831.0 kDa
Excluded volume excluded_volume121980 ų
Envelope volume envelope_volume156260 ų
Hydration-shell volume shell_volume41384 ų
Envelope diameter envelope_diameter130.6
Shell Rg shell_rg38.32
Envelope Rg envelope_rg31.05
Shape Rg shape_rg30.39
Total Rg total_rg30.96
Total atoms total_atoms6790
Residues n_residues855
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 dmax123.8
Rg (real space) rg_real30.90
Rg uncertainty (real space) rg_real_error1.16
I(0) (real space) i0_real1.4350e+08
I(0) uncertainty (real space) i0_real_error2.5900e+06
Rg (reciprocal space) rg_reciprocal30.95
I(0) (reciprocal space) i0_reciprocal143500000.0000
Solution quality estimate total_estimate0.7090
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary41.2
Skewness Skewness skewness0.247
Kurtosis Kurtosis kurtosis-0.224
Angular range angular_range— – 0.2550 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha125300000.0000
Real-space data points n_real_points52
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.474; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.790; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd5lqja_
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_idd5lqjb_
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_idd5lqjc_
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_idd5lqjd_
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 (4 domains)

Domain ID domain_id5lqjA00
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_id5lqjB01
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_id5lqjC00
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_id5lqjD01
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)