2NN2

Crystal structure of the BTB domain from the LRF/ZBTB7 transcriptional regulator

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.4	293	0.7 M sodium citrate, pH 5.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.69	54.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.143	α = 90
b = 72.143	β = 90
c = 116.048	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	100	CCD	ADSC QUANTUM 210		2005-07-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1	0.978	CHESS	A1

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	2.05	61.31	96.7	0.067	15.45	4.5	19243	19243		-3	34.7

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)
	2.05	2.1	95.6		0.442	3.08		1236

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB Entry 1BUO	2.1	61.31	16966	979	96.73	0.21647	0.21366	0.26749	RANDOM	35.922

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]
1.38			1.38		-2.76

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.432
r_dihedral_angle_4_deg	24.323
r_dihedral_angle_3_deg	15.183
r_dihedral_angle_1_deg	5.955
r_scangle_it	4.795
r_scbond_it	3.173
r_mcangle_it	2.036
r_angle_refined_deg	1.642
r_mcbond_it	1.292
r_nbtor_refined	0.308
r_symmetry_vdw_refined	0.269
r_nbd_refined	0.228
r_symmetry_hbond_refined	0.223
r_xyhbond_nbd_refined	0.157
r_chiral_restr	0.117
r_bond_refined_d	0.017
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1769
Nucleic Acid Atoms
Solvent Atoms	113
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing