2OLY

Structure of human insulin in presence of urea at pH 7.0

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	291	2.5M NaCl, 4M urea, 100mM phosphate buffer, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.24	α = 90
b = 60.15	β = 116.21
c = 62.92	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	MARMOSAIC 225 mm CCD		2006-01-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	MAX II BEAMLINE I911-3	1.1	MAX II	I911-3

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	1.7	50	92.1	0.034	13.75	2.1	37140	34195			29.6

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	1.7	1.75	63.8		0.169	4	1.8	3059

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	insulin hexamer R6 conformation	1.7	19.57	32471	1715	92.33	0.18558	0.18361	0.22122	RANDOM	27.228

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]
			0.01		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.496
r_dihedral_angle_3_deg	11.085
r_dihedral_angle_1_deg	5.692
r_dihedral_angle_4_deg	4.78
r_scangle_it	3.259
r_scbond_it	2.213
r_mcangle_it	1.527
r_angle_refined_deg	1.256
r_mcbond_it	0.933
r_nbtor_refined	0.307
r_symmetry_hbond_refined	0.233
r_nbd_refined	0.216
r_xyhbond_nbd_refined	0.178
r_symmetry_vdw_refined	0.172
r_metal_ion_refined	0.132
r_chiral_restr	0.109
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2332
Nucleic Acid Atoms
Solvent Atoms	235
Heterogen Atoms	105

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data scaling
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing