1QI9

X-RAY SIRAS STRUCTURE DETERMINATION OF A VANADIUM-DEPENDENT HALOPEROXIDASE FROM ASCOPHYLLUM NODOSUM AT 2.0 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8		2.0 M AMMONIUM SULPHATE, 50 MM TRIS/HCL, PH 8.0

Crystal Properties
Matthews coefficient	Solvent content
3.9	68

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.19	α = 90
b = 113.19	β = 90
c = 272.3	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	130	AREA DETECTOR	SIEMENS-NICOLET X100		1997-03-15	M	SINGLE WAVELENGTH

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

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	2.05	31.6	95	0.061		2.3		105540

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.05	2.15	85.7			1.4

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SIRAS	THROUGHOUT	2.05	31	100219	5320	95	0.165	0.219	RANDOM	9.56

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_transverse_tor	30.8
p_staggered_tor	14.6
p_planar_tor	3.9
p_scangle_it	2.255
p_mcangle_it	1.735
p_scbond_it	1.628
p_mcbond_it	1.286
p_multtor_nbd	0.249
p_singtor_nbd	0.172
p_chiral_restr	0.13
p_xyhbond_nbd	0.117
p_planar_d	0.034
p_angle_d	0.032
p_bond_d	0.014
p_angle_deg
p_hb_or_metal_coord
p_plane_restr
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8490
Nucleic Acid Atoms
Solvent Atoms	1759
Heterogen Atoms	15

Software

Software
Software Name	Purpose
X-GEN	data scaling
CCP4	data reduction
REFMAC	refinement
X-GEN	data reduction
CCP4	data scaling