2ZP6

Crystal structure of Bovine Insulin (Hexameric form)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	291	15% acetone, 0.6M Ammonium formate (metal basis), 0.6M sodium citrate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.93	36.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.465	α = 90
b = 82.465	β = 90
c = 33.843	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	291	IMAGE PLATE	MAR scanner 345 mm plate		2008-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.56	14.75		0.103			2464	2479

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.56	2.64			4.3

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	PDB ENTRY 2A3G	2.56	14.75	2468	283	99.14	0.20007	0.19788	0.21956	RANDOM	29.369

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	38.51
r_dihedral_angle_3_deg	17.972
r_dihedral_angle_4_deg	6.291
r_dihedral_angle_1_deg	5.957
r_scangle_it	1.817
r_angle_refined_deg	1.227
r_scbond_it	1.154
r_mcangle_it	1.038
r_mcbond_it	0.56
r_xyhbond_nbd_refined	0.34
r_nbtor_refined	0.306
r_nbd_refined	0.274
r_symmetry_hbond_refined	0.216
r_symmetry_vdw_refined	0.206
r_chiral_restr	0.087
r_bond_refined_d	0.011
r_gen_planes_refined	0.004
r_symmetry_metal_ion_refined	0.002
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	800
Nucleic Acid Atoms
Solvent Atoms	35
Heterogen Atoms	2

Software

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