1GQT

Activation of Ribokinase by Monovalent Cations

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.8		CRYSTALS WERE GROWN IN DROPS CONTAINING 0.3 MM WILD-TYPE RK, 5 MM D-RIBOSE, 10 MM AMP-PCP, 75 MM MGCL2, 60 MM CSCL, 10% 2-METHYL-2,4-PENTANEDIOL, 10% POLYETHYLENE GLYCOL 4000 AND 50 MM SODIUM ACETATE, PH 4.8.

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.453	α = 90
b = 62.767	β = 90
c = 339.277	γ = 90

Symmetry
Space Group	P 21 21 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		2000-02-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	2.34	17	98.2	0.091	10.9	4.9		50296

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	2.34	2.38	99.9		0.377	3.8

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	2.34	17	50296	2480	98.2	0.196	0.193	0.257	RANDOM

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
r_scangle_it	8.007
r_scbond_it	5.394
r_mcangle_it	3.154
r_mcbond_it	1.924
r_angle_other_deg	1.574
r_nbd_refined	0.268
r_symmetry_vdw_refined	0.254
r_symmetry_hbond_refined	0.16
r_xyhbond_nbd_refined	0.157
r_metal_ion_refined	0.148
r_chiral_restr	0.114
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_refined_deg
r_dihedral_angle_1_deg
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_gen_planes_other
r_nbd_other
r_nbtor_refined
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_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8976
Nucleic Acid Atoms
Solvent Atoms	242
Heterogen Atoms	137

Software

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