Experiment: 4YX9

Crystal structure of the CFTR inhibitory factor Cif bound to tiratricol

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3KD2

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	291	15% [wt/vol] PEG 8000, 0.125M calcium chloride, 0.1M sodium acetate, 0.0002M [4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]acetic acid, 0.2% [vol/vol] dimethyl sulfoxide

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 169.628	α = 90
b = 84.016	β = 100.48
c = 89.522	γ = 90

Symmetry
Space Group	C 1 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	100	CCD	ADSC QUANTUM 270	Toroidal focusing mirror	2012-02-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A	1.0000	NSLS	X6A

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	1.75	42.23	100	0.081	12.4	4.2		124414

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.8	100		3.7	4.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3KD2	1.75	42.226	1.99	124405	6197	99.98	0.1653	0.1637	0.1589	0.1948	0.1904	thin shells

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]
-1.4108		0.8641	-1.0729		2.4836

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.003
f_angle_d	1.105
f_chiral_restr	0.078
f_bond_d	0.007
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9352
Nucleic Acid Atoms
Solvent Atoms	1168
Heterogen Atoms	84

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHENIX	phasing