4F0M

UNACTIVATED RUBISCO with MAGNESIUM AND A WATER MOLECULE BOUND

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	298	0.05 M potassium phosphate, 26% Ammonium Sulfate, pH 7.5, VAPOR DIFFUSION, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
1.98	37.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 136.325	α = 90
b = 136.325	β = 90
c = 121.524	γ = 90

Symmetry
Space Group	I 4 2 2

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++	confocal	2004-01-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.5418

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	2.25	96.23	98.9	0.101	12.1	3	27570	27220			42

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	2.25	2.3	93.1		0.751	1.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3RUB	2.25	96.23	27220	25853	1367	98.87	0.16288	0.15917	0.23416	RANDOM	36.128

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]
-0.39			-0.39		0.79

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.78
r_dihedral_angle_3_deg	17.251
r_dihedral_angle_4_deg	14.975
r_dihedral_angle_1_deg	7.359
r_scangle_it	4.257
r_scbond_it	2.818
r_mcangle_it	2.071
r_angle_refined_deg	1.774
r_mcbond_it	1.251
r_metal_ion_refined	0.318
r_nbtor_refined	0.311
r_nbd_refined	0.213
r_symmetry_vdw_refined	0.2
r_symmetry_hbond_refined	0.179
r_xyhbond_nbd_refined	0.172
r_chiral_restr	0.114
r_bond_refined_d	0.019
r_gen_planes_refined	0.007
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_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	4658
Nucleic Acid Atoms
Solvent Atoms	353
Heterogen Atoms	20

Software

Software
Software Name	Purpose
CrystalClear	data collection
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-3000	data scaling