Experiment: 1I6N

1.8 A Crystal structure of IOLI protein with a binding zinc atom

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1I60	PDB ENTRY 1I60

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.1	298	Ammonium sulfate, Tris buffer, sodium chloride, EDTA, pH 8.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.93	58.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.015	α = 90
b = 104.616	β = 90
c = 48.462	γ = 90

Symmetry
Space Group	P 21 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	SBC-2	mirrors	2000-08-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.0332	APS	19-ID

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	1.8	500	99.4	0.068	22.5	6.2	35838	35623	6	6	9.6

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)
	1.8	1.86	97.7		0.223	6.1	5.1	3449

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (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	THROUGHOUT	PDB ENTRY 1I60	1.8	19.9	10000	35606	34966	1737	98.2	0.201	0.2011	0.238	0.2381	RANDOM	12.6

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]
0.02			-3.07		3.05

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21.4
c_scangle_it	3.38
c_scbond_it	2.37
c_mcangle_it	1.67
c_angle_deg	1.4
c_mcbond_it	1.31
c_improper_angle_d	0.69
c_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2229
Nucleic Acid Atoms
Solvent Atoms	174
Heterogen Atoms	1

Software

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