1NIG

2.0 A Structure of Protein of Unknown Function from Thermoplasma acidophilum

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.41	49

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.23	α = 90
b = 101.23	β = 90
c = 101.23	γ = 90

Symmetry
Space Group	I 2 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	CUSTOM-MADE	mirror	2002-02-11	M	MAD
2	1	x-ray	100	CCD	CUSTOM-MADE	mirror	2002-03-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9795, 0.9793, 0.9537	APS	19-BM
2	SYNCHROTRON	APS BEAMLINE 19-ID	1.0332	APS	19-ID

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	MAD	THROUGHOUT	2	70.71	11270	10810	533	95.93	0.21346	0.21346	0.21132	0.25613	RANDOM	32.854

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
r_dihedral_angle_1_deg	7.956
r_scangle_it	3.9
r_scbond_it	2.744
r_angle_refined_deg	1.881
r_mcangle_it	1.759
r_mcbond_it	1.112
r_angle_other_deg	0.986
r_symmetry_vdw_other	0.267
r_nbd_other	0.244
r_xyhbond_nbd_refined	0.24
r_nbd_refined	0.23
r_symmetry_vdw_refined	0.227
r_symmetry_hbond_refined	0.179
r_chiral_restr	0.127
r_nbtor_other	0.091
r_bond_refined_d	0.024
r_gen_planes_refined	0.016
r_gen_planes_other	0.006
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1172
Nucleic Acid Atoms
Solvent Atoms	40
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
d*TREK	data reduction
HKL-2000	data scaling
CNS	phasing