4XUD

Synthesis and evaluation of heterocyclic catechol mimics as inhibitors of catechol-O-methyltransferase (COMT): Structure with Cmpd32 ([1-(biphenyl-3-yl)-5-hydroxy-4-oxo-1,4-dihydropyridin-3-yl]boronic acid)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4XUC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7	298	0.1M HEPES, 30% PEG 6000; MA000474 (JCSG core IV), drop e12 :100uM ligand, 12mg/ml protein

Crystal Properties
Matthews coefficient	Solvent content
2.56	51.89

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.812	α = 90
b = 57.631	β = 90
c = 98.249	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	IMAGE PLATE	RIGAKU RAXIS IV++		2008-06-25	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	2.4	50	100	0.198	7.2	7.7		10266

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	2.4	2.44	100		0.696		7.7	505

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	4XUC	2.4	49.69	9611	484	98.66	0.1713	0.1679	0.241	RANDOM	24.293

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]
1.66			-0.75		-0.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.931
r_dihedral_angle_3_deg	13.893
r_dihedral_angle_4_deg	10.626
r_dihedral_angle_1_deg	5.734
r_scangle_it	2.743
r_scbond_it	1.681
r_angle_refined_deg	1.316
r_mcangle_it	1.025
r_mcbond_it	0.618
r_nbtor_refined	0.305

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.931
r_dihedral_angle_3_deg	13.893
r_dihedral_angle_4_deg	10.626
r_dihedral_angle_1_deg	5.734
r_scangle_it	2.743
r_scbond_it	1.681
r_angle_refined_deg	1.316
r_mcangle_it	1.025
r_mcbond_it	0.618
r_nbtor_refined	0.305
r_symmetry_vdw_refined	0.202
r_nbd_refined	0.188
r_symmetry_hbond_refined	0.184
r_xyhbond_nbd_refined	0.164
r_chiral_restr	0.084
r_metal_ion_refined	0.017
r_bond_refined_d	0.011
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1699
Nucleic Acid Atoms
Solvent Atoms	162
Heterogen Atoms	63

Software

Software
Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
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.