2BN1

Insulin after a high dose x-ray burn

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				.4 M NAPO4/NA2HPO4 PH10.4, 0.001M EDTA, 30% ETHYLENE GLYCOL

Crystal Properties
Matthews coefficient	Solvent content
2.73	54.62

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.9	α = 90
b = 77.9	β = 90
c = 77.9	γ = 90

Symmetry
Space Group	I 21 3

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 CCD	BENT MIRROR	2004-12-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	1.5	50	97.9	0.04	18.99	3.8		24081		-3

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	1.5	1.59	95.9		0.33	4.12	3.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	OTHER	THROUGHOUT	1.4	45	14870	779	99.8	0.133	0.131	0.165	RANDOM	14.39

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	44.113
r_dihedral_angle_3_deg	12.677
r_dihedral_angle_1_deg	5.984
r_scangle_it	4.933
r_scbond_it	4.301
r_mcangle_it	2.989
r_mcbond_it	2.442
r_angle_refined_deg	1.72
r_angle_other_deg	0.946
r_mcbond_other	0.933
r_dihedral_angle_4_deg	0.896
r_symmetry_hbond_refined	0.41
r_nbd_refined	0.292
r_xyhbond_nbd_refined	0.29
r_symmetry_vdw_other	0.286
r_symmetry_vdw_refined	0.237
r_nbd_other	0.235
r_nbtor_refined	0.196
r_chiral_restr	0.113
r_nbtor_other	0.093
r_bond_refined_d	0.02
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	400
Nucleic Acid Atoms
Solvent Atoms	78
Heterogen Atoms

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
SHELXD	phasing
SHELXE	phasing
REFMAC	refinement