1FC3

THE CRYSTAL STRUCTURE OF TRANS-ACTIVATION DOMAIN OF THE SPORULATION RESPONSE REGULATOR, SPO0A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5		0.1 M HEPES pH 7.5, 20% w/v PEG 10K, 0.1 M MALTOSE, 10 mM BME

Crystal Properties
Matthews coefficient	Solvent content
2.63	52.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.118	α = 90.82
b = 53.414	β = 111.73
c = 53.718	γ = 111.32

Symmetry
Space Group	P 1

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	MARRESEARCH		1999-12-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	20	87.6	0.06	19.41	7.27		27976			29.38

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2	2.07	55.6		0.313	3.23	1.31

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	MAD	THROUGHOUT	2	20	24473	1221	87.6	0.1991	0.196	0.258	RANDOM	31.3

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]
1.6	-0.44	-1.64	-1.36	-0.95	-1.8

RMS Deviations
Key	Refinement Restraint Deviation
p_scangle_it	2.062
p_scbond_it	1.413
p_mcangle_it	0.973
p_mcbond_it	0.54
p_chiral_restr	0.142
p_bond_d	0.018
p_plane_restr	0.008
p_angle_d
p_angle_deg
p_planar_d
p_hb_or_metal_coord
p_singtor_nbd
p_multtor_nbd
p_xhyhbond_nbd
p_xyhbond_nbd
p_planar_tor
p_staggered_tor
p_orthonormal_tor
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2664
Nucleic Acid Atoms
Solvent Atoms	319
Heterogen Atoms

Software

Software
Software Name	Purpose
SOLVE	phasing
DM	model building
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
DM	phasing