1DL5

PROTEIN-L-ISOASPARTATE O-METHYLTRANSFERASE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	293	THREE MICROLITERS OF PROTEIN AT A CONCENTRATION OF 6.3MGS/ML IN 10MM TRIS PH 8.0, 200MM NACL, 5% GLYCEROL, LMM DTT, 5MM BME AND 0.1MM EDTA WERE MIXED WITH THREE MICROLITERS OF A RESERVOIR SOLUTION OF 28% PEG400, 100MM SODIUM ACETATE PH 4.5, AND 100MM CADMIUM CHLORIDE AND EQUILIBRATED AGAINST THE SAME., VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.57	51.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.06	α = 90
b = 98.91	β = 105.66
c = 76.86	γ = 90

Symmetry
Space Group	P 1 21 1

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	MSC/YALE MIRRORS	1999-06-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

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	15	97.6	0.053	18.3	7	67929	66308		-3	25.2

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)
	1.8	1.85	95.7		0.237	10	7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	MIR	1.8	15	2	67917	66212	4051	97.5	0.182	0.182	0.203	SHELLS	22.67

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]
0.265		3.536	-0.776		0.168

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.88
c_scangle_it	4.102
c_scbond_it	2.892
c_mcangle_it	2.393
c_mcbond_it	1.787
c_angle_deg	1.376
c_improper_angle_d	0.79
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5106
Nucleic Acid Atoms
Solvent Atoms	463
Heterogen Atoms	71

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing
CNS	refinement