1RKS

E. COLI RIBOKINASE IN COMPLEX WITH D-RIBOSE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.4		5 MM RIBOSE, 10 MM MGCL2 IN THE DROP, 0.1 M TRIS-HCL BUFFER, PH 8.4 WITH 2.1-2.4 M NH4H2PO4 AS PRECIPITANT, VAPOR DIFFUSION, HANGING DROP CRYO-SOLUTION: MOTHER LIQUOR CONTAINING 20% GLYCEROL. SOAK-TIME: 2-3 MINUTES.

Crystal Properties
Matthews coefficient	Solvent content
3.1	48.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.21	α = 90
b = 95.21	β = 90
c = 154.46	γ = 120

Symmetry
Space Group	P 61 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 II	MSC MIRRORS	1997-11-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	2.4	29	99.9	0.069	30.2	10.5		16814			40

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	2.4	2.44	99.8		0.354	5.8	7.5

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-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	2.4	15	16740	1668	99.9	0.231	0.229	0.288	RANDOM	45.3

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	31.2
p_staggered_tor	14
p_scangle_it	3.982
p_planar_tor	3.9
p_scbond_it	2.876
p_mcangle_it	1.342
p_mcbond_it	0.753
p_multtor_nbd	0.26
p_singtor_nbd	0.188
p_xyhbond_nbd	0.167
p_chiral_restr	0.113
p_planar_d	0.036
p_angle_d	0.032
p_plane_restr	0.021
p_bond_d	0.011
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2236
Nucleic Acid Atoms
Solvent Atoms	89
Heterogen Atoms	20

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling