4XUC

Synthesis and evaluation of heterocyclic catechol mimics as inhibitors of catechol-O-methyltransferase (COMT): Structure with Cmpd18 (1-(biphenyl-3-yl)-3-hydroxypyridin-4(1H)-one)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION		298	0.1M MES, pH 6.5, 0.1M NaOAc, 30% PEG 2000MME; MA000417 (PEGsII), drop b10 :100uM ligand, 11mg/ml protein

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.741	α = 90
b = 57.201	β = 90
c = 98.182	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	RIGAKU SATURN 944+		2008-05-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.8	50	99.2	0.073	13.4	6.9		23411

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.83	96.5		0.471		4.5	1116

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	1.8	49.45	22153	1206	99.17	0.1757	0.1736	0.2156	RANDOM	20.192

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
1.73			-0.82		-0.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.851
r_dihedral_angle_4_deg	17.588
r_dihedral_angle_3_deg	12.779
r_dihedral_angle_1_deg	11.96
r_scangle_it	3.336
r_scbond_it	2.192
r_angle_refined_deg	1.443
r_mcangle_it	1.254
r_mcbond_it	0.787
r_nbtor_refined	0.314

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.851
r_dihedral_angle_4_deg	17.588
r_dihedral_angle_3_deg	12.779
r_dihedral_angle_1_deg	11.96
r_scangle_it	3.336
r_scbond_it	2.192
r_angle_refined_deg	1.443
r_mcangle_it	1.254
r_mcbond_it	0.787
r_nbtor_refined	0.314
r_nbd_refined	0.197
r_symmetry_vdw_refined	0.159
r_symmetry_hbond_refined	0.154
r_xyhbond_nbd_refined	0.139
r_chiral_restr	0.103
r_bond_refined_d	0.013
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1699
Nucleic Acid Atoms
Solvent Atoms	291
Heterogen Atoms	60

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data scaling
MOLREP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.