Experiment: 4IDW

Polycrystalline T6 Bovine Insulin: Anisotropic Lattice Evolution and Novel Structure Refinement Strategy

POWDER DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Batch	6	295	polycrystalline samples of T6 hexameric insulin (Zn2[(AB)2]3, the pH was adjusted by mixing different ratios of 0.2M solutions of sodium monobasic monohydrate phosphate and potassium phosphate., Batch, temperature 295K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.607	α = 90
b = 82.607	β = 90
c = 33.632	γ = 120

Symmetry
Space Group	H 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	295	CCD	Frelon4M 2k x 2k CCD camera	DOUBLE SI(111) monochromator	2006-11-07	M	SINGLE WAVELENGTH
2	1	x-ray		NINE AVALANCHE PHOTODIODE (APD) DETECTORS (SI BASED)	APD	DOUBLE SI(111)monochromator	2006-11-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID13	1.29967, 0.53395	ESRF	ID13

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.7	18.2	70			2140	2140	3	3

Software

Software
Software Name	Purpose
ID31sum	data collection
MOLREP	phasing
GSAS	refinement
FIT2D	data reduction
ID31sum	data scaling