2BKG

Crystal structure of E3_19 a designed ankyrin repeat protein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.6		15% PEG 4000, 200 MM KBR, 100MM TRIS-HCL, PH8.0, pH 7.60

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.579	α = 90
b = 72.67	β = 90
c = 83.325	γ = 90

Symmetry
Space Group	P 21 21 21

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	MARRESEARCH			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA		SLS	X06SA

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	1.9	25	99.9	0.08		4.1		24393		2

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 1MJ0	1.9	25	23178	1169	99.9	0.178	0.176	0.227	RANDOM	17.03

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]
-0.2			-0.47		0.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.487
r_scangle_it	5.202
r_scbond_it	3.16
r_mcangle_it	1.882
r_angle_other_deg	1.787
r_angle_refined_deg	1.746
r_mcbond_it	1.078
r_symmetry_vdw_other	0.283
r_nbd_other	0.244
r_symmetry_vdw_refined	0.243
r_nbd_refined	0.225
r_xyhbond_nbd_refined	0.214
r_symmetry_hbond_refined	0.202
r_chiral_restr	0.135
r_nbtor_other	0.095
r_bond_refined_d	0.02
r_gen_planes_other	0.011
r_gen_planes_refined	0.009
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2302
Nucleic Acid Atoms
Solvent Atoms	330
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing