Experiment: 3NTQ

Crystal structure of K97V mutant myo-inositol dehydrogenase from Bacillus subtilis with bound cofactor NAD

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3NT2	PDB ENTRY 3NT2 (holo-IDH)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	5.4	298	0.1M tri-sodium citrate pH 5.4, 2.6M ammonium sulfate, microbatch, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.4	63.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 184.387	α = 90
b = 184.387	β = 90
c = 184.387	γ = 90

Symmetry
Space Group	I 21 3

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	MARMOSAIC 225 mm CCD		2009-06-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.97934	CLSI	08ID-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	2.6	19.883	99.5	0.092	8	6.5		31891			63.8

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)
	2.6	2.69	100		0.856	1.6	6.36	3176

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3NT2 (holo-IDH)	2.6004	19.883	1.34	31882	1645	99.48	0.2315	0.2297	0.2658	0.2731	RANDOM	91.5175

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
f_dihedral_angle_d	19.692
f_angle_d	1.165
f_chiral_restr	0.079
f_bond_d	0.009
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5276
Nucleic Acid Atoms
Solvent Atoms	47
Heterogen Atoms	88

Software

Software
Software Name	Purpose
d*TREK	data scaling
MOLREP	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
MxDC	data collection
d*TREK	data reduction