Experiment: 4BS3

Bovin insulin structure determined by in situ crystal analysis and sulfur-SAD phasing at room temperature

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	10.2	293	INSULIN (30 MG/ML) WAS CRYSTALLIZED AT 293K BY VAPOR DIFFUSION (SITTING DROP) IN CRYSTALQUICK X MICROPLATE USING A RESERVOIR SOLUTION CONTAINING 0.275 M NAHPO4 / NA3PO4 PH 10.2, 0.01 M NA3EDTA.

Crystal Properties
Matthews coefficient	Solvent content
3.6	65.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.98	α = 90
b = 78.98	β = 90
c = 78.98	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	298	PIXEL	DECTRIS PILATUS 6M			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA		SLS	X10SA

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	2.3	55	97.4	0.07	33.1	15		3780		-3	28.3

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	2.3	2.4	81.3		0.13	14.9	9.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	SAD	NONE	2.301	32.243	2.03	3681	353	97.36	0.1568	0.1561	0.1589	0.1691	0.1674	26.01

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
f_dihedral_angle_d	14.897
f_angle_d	0.589
f_chiral_restr	0.052
f_bond_d	0.003
f_plane_restr	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	402
Nucleic Acid Atoms
Solvent Atoms	15
Heterogen Atoms

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
SHELX	phasing