3FTB

The crystal structure of the histidinol-phosphate aminotransferase from Clostridium acetobutylicum

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	298	20% Ethanol, 0.1M Tris , pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 250K, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.556	α = 90
b = 121.663	β = 90.09
c = 94.185	γ = 90

Symmetry
Space Group	P 1 21 1

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	ADSC QUANTUM 315	mirrors	2008-02-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.9794	APS	19-ID

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	37.25	89.44	0.113	25.2	8.8	211748	178715	2	2	44

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	2.03	62.45		0.5	1.89	8	14882

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	SAD	THROUGHOUT	2	37.248	1.89	211748	178715	9317	89.44	0.1764	0.1745	0.2123	RANDOM	43.88

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]
-1.7277		0.4612	-14.9804		14.9519

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_1_deg	18.375
f_angle_refined_deg	1.008
f_chiral_restr	0.075
f_bond_refined_d	0.008
f_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10727
Nucleic Acid Atoms
Solvent Atoms	601
Heterogen Atoms	50

Software

Software
Software Name	Purpose
PHENIX	refinement
CNS	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.