1ZDT

The Crystal Structure of Human Steroidogenic Factor-1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	277	PEG3350, ammonium sulfate, sucrose, pH 5.5, temperature 277K, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.601	α = 90
b = 73.601	β = 90
c = 195.678	γ = 120

Symmetry
Space Group	P 31 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	93	CCD	ADSC QUANTUM 4		2004-01-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.11587	ALS	8.3.1

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	2.1	100	99.31	0.112	3.8	4.2	34885	34644			38.74

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)
1	2.1	2.21	94.6		0.77	0.8	3.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.1	50	34885	34644	1565	99.31	0.21823	0.21823	0.21597	0.26532	RANDOM	21.368

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]
1.34	0.67		1.34		-2.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.106
r_scangle_it	2.579
r_scbond_it	1.532
r_angle_refined_deg	1.449
r_mcangle_it	0.939
r_angle_other_deg	0.87
r_mcbond_it	0.483
r_symmetry_hbond_refined	0.283
r_nbd_other	0.222
r_xyhbond_nbd_refined	0.216
r_nbd_refined	0.204
r_symmetry_vdw_other	0.202
r_symmetry_vdw_refined	0.195
r_nbtor_other	0.095
r_chiral_restr	0.083
r_bond_refined_d	0.014
r_gen_planes_refined	0.004
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3991
Nucleic Acid Atoms
Solvent Atoms	235
Heterogen Atoms	94

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
EPMR	phasing