Experiment: 7QOU

A mutant of the nitrile hydratase from Geobacillus pallidus having enhanced thermostability

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2DPP

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	295	30% PEG400, 100mM magnesium chloride, 100mM MES (2[N-Morpholino]ethanesulfonic acid), 10-40mg/ml protein, pH 6.5, vapor diffusion, hanging drop, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.28	45.98

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.084	α = 90
b = 106.084	β = 90
c = 82.975	γ = 90

Symmetry
Space Group	P 41 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	MARMOSAIC 225 mm CCD	mirrors	2007-07-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.979	ESRF	BM14

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	1.3	74.95	98.5	0.046	11	3.42		294741

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	1.43	1.48	99.8		0.298	3	3.33

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	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	THROUGHOUT	2dpp	1.3	74.95	108677	5740	98.59	0.1542	0.1527	0.1571	0.1824	0.1829	RANDOM	12.672

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]
0.04			0.04		-0.08

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3488
Nucleic Acid Atoms
Solvent Atoms	391
Heterogen Atoms	4

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
d*TREK	data reduction
d*TREK	data scaling
PHASER	phasing