Experiment: 3BXQ

The structure of a mutant insulin uncouples receptor binding from protein allostery. An electrostatic block to the TR transition

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4INS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	298	0.02 M Tris, 0.05 M sodium citrate, 5% acetone, 0.03% phenol, 0.01% zinc acetate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
1.86	33.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.39	α = 90
b = 81.39	β = 90
c = 34	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		mirros	2006-09-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 4.2.2	1.033	ALS	4.2.2

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	1.3	30.62	95.4	0.04	21.2	5.11	40193	39411			13.9

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)
	1.3	1.38	77.9		0.132	10	2.89	4876

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-Work (Depositor)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4INS	1.3	30.62	20156	20156	3817	95.4	0.206	0.232	0.2579	random	18.3

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]
0.13	0.39		0.13		-0.25

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	21
c_angle_deg	1.2
c_improper_angle_d	0.64
c_angle_d	0.17

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1594
Nucleic Acid Atoms
Solvent Atoms	127
Heterogen Atoms	2

Software

Software
Software Name	Purpose
HKL-2000	data collection
CNS	refinement
d*TREK	data reduction
d*TREK	data scaling
CNS	phasing