4FG3 | pdb_00004fg3

Crystal Structure Analysis of the Human Insulin

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	293	Hanging drop: 2 uL 0.1 M sodium phosphate, 10% w/v PEG 6K + 2 uL Human Insulin 100 U/mL (Humulin R, lot #A 405936). Cryo = mother liquor + 10% glycerol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
1.84	33.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.559	α = 90
b = 81.559	β = 90
c = 33.538	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	CCD	OXFORD TITAN CCD		2012-02-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SEALED TUBE	OXFORD DIFFRACTION ENHANCE ULTRA	1.54056

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	40.78	32.6	0.098	6.5	1.9	5487	5487

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	2	2.11	31.6		0.481	0.481	0.9	1.5	787

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.001	40.78	5485	485	97.63	0.2014	0.1962	0.204	0.2519	0.2616	RANDOM	29.1673

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]
0.32	0.16		0.32		-0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.673
r_sphericity_free	28.52
r_dihedral_angle_4_deg	21.236
r_dihedral_angle_3_deg	12.245
r_sphericity_bonded	5.323
r_dihedral_angle_1_deg	5.217
r_rigid_bond_restr	0.836
r_angle_refined_deg	0.755
r_angle_other_deg	0.733
r_chiral_restr	0.045
r_bond_refined_d	0.004
r_gen_planes_refined	0.002
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	808
Nucleic Acid Atoms
Solvent Atoms	36
Heterogen Atoms	10

Software

Software
Software Name	Purpose
SCALA	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrysalisPro	data reduction