2FU3

Crystal structure of gephyrin E-domain

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	311	0.1M Tris-HCl (pH 7.5-8.5), 0.1M Na Acetate, and 25-30% PEG 4000, vapor diffusion, hanging drop, temperature 311K, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.82	α = 90
b = 156.195	β = 90
c = 51.362	γ = 90

Symmetry
Space Group	P 21 21 2

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	ADSC QUANTUM 4		2004-08-24	M	MAD
2	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X26C	1.1	NSLS	X26C

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	2.7	50	99.8	0.095	16.4			35018

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	2.7	2.75		99.9	0.572

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 (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	and MAD	THROUGHOUT	2.7	20	24732	1259	99.93	0.205	0.202	0.273	RANDOM	63.896

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]
1.44			2.7		-4.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.832
r_dihedral_angle_3_deg	16.218
r_dihedral_angle_4_deg	15.119
r_dihedral_angle_1_deg	4.217
r_scangle_it	2.081
r_angle_refined_deg	1.541
r_scbond_it	1.28
r_mcangle_it	0.838
r_angle_other_deg	0.831
r_mcbond_it	0.493
r_symmetry_vdw_other	0.252
r_nbd_refined	0.223
r_nbd_other	0.191
r_nbtor_refined	0.181
r_xyhbond_nbd_refined	0.169
r_symmetry_vdw_refined	0.159
r_symmetry_hbond_refined	0.12
r_chiral_restr	0.095
r_nbtor_other	0.09
r_mcbond_other	0.089
r_bond_refined_d	0.021
r_xyhbond_nbd_other	0.019
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6191
Nucleic Acid Atoms
Solvent Atoms	66
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction