3JRB

Crystal structure of Fis bound to 27 bp DNA F24 containing T-tract at center

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3IV5

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
4.08	69.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.573	α = 90
b = 94.264	β = 90
c = 155.336	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		2007-04-27	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	3.1	90	99.2	0.141	6.7	4.6		11692

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	3.1	3.21	99		0.626		4.6	1130

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	3IV5	3.1	80.58	11659	557	95.07	0.242	0.239	0.29	RANDOM	75.589

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	37.756
r_dihedral_angle_3_deg	19.999
r_dihedral_angle_4_deg	12.462
r_dihedral_angle_1_deg	6.848
MAIN-CHAIN ANGLE REFINED ATOMS (A''2)	3.8
MAIN-CHAIN BOND REFINED ATOMS (A''2)	2.961
SIDE-CHAIN ANGLE REFINED ATOMS (A''2)	2.435
r_angle_refined_deg	1.739
SIDE-CHAIN BOND REFINED ATOMS (A''2)	1.532
r_angle_other_deg	1.109
r_symmetry_hbond_refined	0.449
MAIN-CHAIN BOND OTHER ATOMS (A''2)	0.444
r_nbd_refined	0.234
r_nbtor_refined	0.215
r_nbd_other	0.207
r_symmetry_vdw_other	0.207
r_xyhbond_nbd_refined	0.161
r_symmetry_vdw_refined	0.159
r_nbtor_other	0.088
CHIRAL-CENTER RESTRAINTS (A''3)	0.07
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
r_bond_other_d	0.001
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	15
Heterogen Atoms

Software

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