3IV5

Crystal structure of Fis bound to 27 bp optimal binding sequence F1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	277	0.2 M Sodium citrate, 0.1 M TRIS-HCl pH 8.5, 36% PEG 400, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.96	68.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.08	α = 90
b = 92.98	β = 90
c = 154.51	γ = 90

Symmetry
Space Group	P 21 21 21

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		2007-03-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.000	ALS	8.2.2

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	2.9	90	98.7	0.092	10.1	7		14386

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)
1	2.9	3	90.7		0.657		5.3	1274

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	1ETO	2.9	77.15	13160	656	91.24	0.203	0.201	0.24	RANDOM	41.728

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_2_deg	38.558
r_dihedral_angle_3_deg	17.687
r_dihedral_angle_4_deg	13.252
MAIN-CHAIN ANGLE REFINED ATOMS (A''2)	5.755
MAIN-CHAIN BOND REFINED ATOMS (A''2)	4.909
SIDE-CHAIN ANGLE REFINED ATOMS (A''2)	4.631
r_dihedral_angle_1_deg	4.538
SIDE-CHAIN BOND REFINED ATOMS (A''2)	3.097
r_angle_refined_deg	1.804
r_angle_other_deg	1.137
MAIN-CHAIN BOND OTHER ATOMS (A''2)	0.711
r_symmetry_vdw_other	0.257
r_nbd_other	0.225
r_nbd_refined	0.221
r_nbtor_refined	0.214
r_symmetry_vdw_refined	0.203
r_symmetry_hbond_refined	0.174
r_xyhbond_nbd_refined	0.129
r_nbtor_other	0.095
CHIRAL-CENTER RESTRAINTS (A''3)	0.072
r_bond_refined_d	0.014
r_bond_other_d	0.005
r_gen_planes_refined	0.005
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1505
Nucleic Acid Atoms	1101
Solvent Atoms	12
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
PHASER	phasing