2ZLB

Crystal structure of APO form of rat catechol-O-methyltransferase

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1VID	PDB entry 1VID

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	0.2M (NH4)2SO4, 30% PEG 8000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.262	α = 90
b = 56.262	β = 90
c = 117.483	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	CCD	RIGAKU JUPITER 210		2003-07-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL32B2	1.0	SPring-8	BL32B2

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	2.2	39.16	98.7	0.07	20	7.2		11356			34.11

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)
	2.2	2.32	94.6		0.241	7.5	7.1	1565

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1VID	2.2	15	10735	535	98.57	0.198	0.18159	0.17877	0.23747	RANDOM	25.767

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]
-0.66	-0.33		-0.66		0.99

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.751
r_dihedral_angle_3_deg	20.761
r_dihedral_angle_4_deg	16.708
r_dihedral_angle_1_deg	10.114
r_scangle_it	4.309
r_scbond_it	2.8
r_angle_refined_deg	2.144
r_mcangle_it	2.052
r_mcbond_it	1.292
r_nbtor_refined	0.32
r_xyhbond_nbd_refined	0.28
r_nbd_refined	0.252
r_symmetry_vdw_refined	0.187
r_symmetry_hbond_refined	0.187
r_chiral_restr	0.159
r_bond_refined_d	0.02
r_gen_planes_refined	0.008
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1672
Nucleic Acid Atoms
Solvent Atoms	149
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
BSS	data collection
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing