Experiment: 4QDP

Joint X-ray and neutron structure of Streptomyces rubiginosus D-xylose isomerase in complex with two Cd2+ ions and cyclic beta-L-arabinose

NEUTRON DIFFRACTION - X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	batch	7.7	291	0.1M HEPES, pH 7.7, 30% ammonium sulfate, batch, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.78	55.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 93.93	α = 90
b = 99.693	β = 90
c = 102.973	γ = 90

Symmetry
Space Group	I 2 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	291	IMAGE PLATE	RIGAKU RAXIS IV++	OSMIC VARIMAX	2011-10-10	M	SINGLE WAVELENGTH
2	1	neutron	291	AREA DETECTOR	3He position sensitive detector		2011-10-20	L	LAUE

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.54
2	NUCLEAR REACTOR	LANSCE BEAMLINE PCS	0.7-6.0	LANSCE	PCS

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	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
2	2	39.28	87.7	0.208						29.3			28786	2.5	1.4
1	1.6	40	99.9	0.055						29	7.1		63773	2.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	R Split (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.6	1.66		0.379						5.3	6.8
	2	2.11		0.37						1.6	1.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	2	20		2.5	28786	25245	1254		0.231	0.231	0.231	0.155	0.247	0.1647	random	30.06

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
x_torsion_deg	18.2
x_angle_deg	1
x_torsion_impr_deg	0.89
x_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3054
Nucleic Acid Atoms
Solvent Atoms	312
Heterogen Atoms	12

Software

Software
Software Name	Purpose
nCNS	refinement
d*TREK	data scaling
HKL-3000	data reduction
RETREAT	data reduction
HKL-3000	data scaling
RETREAT	data scaling
CNS	phasing