3INC

Crystal structure of human insulin with Ni+2 complex

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.8	298	0.2M Sodium Citrate, 0.12M Nickel Chloride, 1M Ammonium Sulphate, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.86	33.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.654	α = 90
b = 81.654	β = 90
c = 33.767	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	100	IMAGE PLATE	MAR scanner 345 mm plate	Mirrors	2008-09-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.54

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.85	30.47	99.4	0.07	0.094	4.5	3.3	7167	6787			32.07

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.85	1.89	97		0.025	0.1742	1.1	3.1	6787

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	1MSO	1.85	30.47	7167	6787	333	99.36	0.20571	0.20328	0.25699	RANDOM	28.246

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		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.49
r_dihedral_angle_3_deg	17.635
r_dihedral_angle_1_deg	15.42
r_dihedral_angle_4_deg	9.163
r_scangle_it	4.205
r_scbond_it	3.461
r_mcangle_it	2.038
r_angle_refined_deg	2.002
r_mcbond_it	1.548
r_nbtor_refined	0.306
r_symmetry_vdw_refined	0.253
r_nbd_refined	0.247
r_symmetry_hbond_refined	0.217
r_xyhbond_nbd_refined	0.184
r_chiral_restr	0.147
r_bond_refined_d	0.02
r_gen_planes_refined	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	810
Nucleic Acid Atoms
Solvent Atoms	49
Heterogen Atoms	2

Software

Software
Software Name	Purpose
MAR345dtb	data collection
AMoRE	phasing
REFMAC	refinement
AUTOMAR	data reduction
SCALEPACK	data scaling