2A9R

RR02-Rec Phosphate in the active site

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1NXW	PDB ENTRY 1NXW

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5	298	40% PEG300, Phosphate/citrate buffer, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.49	50.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.673	α = 90
b = 92.829	β = 90
c = 36.789	γ = 90

Symmetry
Space Group	C 2 2 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	CCD	MARRESEARCH		2003-07-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R		ELETTRA	5.2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.34	46.4				6052	5980

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 1NXW	2.342	46.4	5400	579	98.92	0.202	0.20222	0.1976	0.24617	RANDOM	38.402

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]
2.61			-1.29		-1.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.88
r_scangle_it	5.246
r_scbond_it	2.919
r_mcangle_it	1.921
r_angle_refined_deg	1.875
r_mcbond_it	1.005
r_angle_other_deg	0.936
r_symmetry_vdw_other	0.279
r_nbd_other	0.244
r_nbd_refined	0.223
r_symmetry_vdw_refined	0.213
r_xyhbond_nbd_refined	0.193
r_symmetry_hbond_refined	0.184
r_chiral_restr	0.105
r_nbtor_other	0.097
r_bond_refined_d	0.021
r_gen_planes_refined	0.007
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	938
Nucleic Acid Atoms
Solvent Atoms	16
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
EPMR	phasing