3S5P

Crystal structure of ribose-5-phosphate isomerase B RpiB from Giardia lamblia

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	289	GilaA.01163.a.A1 PS00138 at 24 mg/mL with 5 mM ribose-5-phosphate against JCSG+ screen condition A6 0.2 M Li2SO4, 0.1 M phosphate/citrate pH 4.2, 20% PEG 1000, crystal tracking ID 215117a6, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.2	α = 90
b = 89.2	β = 90
c = 68.24	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	100	CCD	ADSC QUANTUM 315r		2010-04-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1	0.97946	SSRL	BL7-1

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	2.3		97.6	0.037	22.39	3.7	14267	13930		-3	55.729

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	2.3	2.36	96.3		0.535	2.53

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 2vvr	2.3	38.62	14267	13881	701	97.31	0.2	0.1982	0.2344	RANDOM	50.4842

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]
0.46	0.23		0.46		-0.69

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.831
r_dihedral_angle_4_deg	20.057
r_dihedral_angle_3_deg	14.996
r_dihedral_angle_1_deg	5.719
r_scangle_it	3.563
r_scbond_it	2.284
r_mcangle_it	1.552
r_angle_refined_deg	1.416
r_mcbond_it	0.833
r_chiral_restr	0.086
r_bond_refined_d	0.014
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1810
Nucleic Acid Atoms
Solvent Atoms	50
Heterogen Atoms	25

Software

Software
Software Name	Purpose
XSCALE	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction