2cl5

Catechol-O-methyltransferase in complex with an inhibitor

Method: X-RAY DIFFRACTION Dmax: 75.2 Å Quality: GOOD

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 44–264 Not recorded MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1 BIE (3,4-DIHYDROXY-2-NITROPHENYL)(PHENYL)METHANONE × 1 BU3 (R,R)-2,3-BUTANEDIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;8% PEG6K, 0.1 M MES PH 6.0 Resolution 1.60 Å R-free 0.178
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 44–264 Not recorded MG MAGNESIUM ION × 1 SAM S-ADENOSYLMETHIONINE × 1 BIE (3,4-DIHYDROXY-2-NITROPHENYL)(PHENYL)METHANONE × 1 BU3 (R,R)-2,3-BUTANEDIOL × 1 MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;8% PEG6K, 0.1 M MES PH 6.0 Resolution 1.60 Å R-free 0.178

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
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–221; UniProt 44–264 Author chain B; PDBConstruct 1–221; UniProt 44–264

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 2cl5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2cl5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2cl5
Deposition date deposition_date2006-04-26
Structure title titleCatechol-O-methyltransferase in complex with an inhibitor
Keywords keywords;TRANSFERASE, ALTERNATIVE INITIATION, CATECHOLAMINE METABOLISM, NEUROTRANSMITTER DEGRADATION, CATECHOL-O-METHYLTRANSFERASE, PHOSPHORYLATION, METHYLTRANSFERASE, SIGNAL-ANCHOR, TRANSMEMBRANE, COMT INHIBITOR, MEMBRANE, MAGNESIUM, METAL-BINDING ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.51
Radius of gyration Rg (electron density) rg_electron22.65
Forward intensity I(0) i040804800.00
Molecular weight molecular_weight49878.0 kDa
Excluded volume excluded_volume62577 ų
Envelope volume envelope_volume70303 ų
Hydration-shell volume shell_volume25647 ų
Envelope diameter envelope_diameter77.9
Shell Rg shell_rg29.73
Envelope Rg envelope_rg22.92
Shape Rg shape_rg22.65
Total Rg total_rg23.46
Total atoms total_atoms3493
Residues n_residues430
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 dmax75.2
Rg (real space) rg_real23.49
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real4.0800e+07
I(0) uncertainty (real space) i0_real_error5.4500e+05
Rg (reciprocal space) rg_reciprocal23.49
I(0) (reciprocal space) i0_reciprocal40800000.0000
Solution quality estimate total_estimate0.8944
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.4
Skewness Skewness skewness0.338
Kurtosis Kurtosis kurtosis-0.384
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha16130000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.885; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.968

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2cl5a_
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_idd2cl5b_
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_id2cl5A00
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_id2cl5B00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily150 — Vaccinia Virus protein VP39

8. Citations (2)

9. Files and Curves (10)