3UD2

Crystal structure of Selenomethionine ZU5A-ZU5B protein domains of human erythrocyte ankyrin

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	283.15	25% ethanol, 0.1 M Tris pH 7, VAPOR DIFFUSION, SITTING DROP, temperature 283.15K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.76

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 279.48	α = 90
b = 40.873	β = 92.01
c = 95.249	γ = 90

Symmetry
Space Group	C 1 2 1

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	MARMOSAIC 300 mm CCD		2009-10-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97626	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.2	38.7	99.9	0.042	0.042	14.2		55529	55529

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.3	99.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	2.21	24.9	51531	51530	2720	98.69	0.22258	0.22064	0.25878	RANDOM	35.142

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		-0.3	0.28		0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.717
r_dihedral_angle_4_deg	16.897
r_dihedral_angle_3_deg	13.652
r_dihedral_angle_1_deg	6.695
r_scangle_it	2.673
r_scbond_it	1.582
r_angle_refined_deg	1.346
r_mcangle_it	0.917
r_angle_other_deg	0.845
r_mcbond_it	0.476
r_mcbond_other	0.108
r_chiral_restr	0.075
r_bond_refined_d	0.009
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7508
Nucleic Acid Atoms
Solvent Atoms	189
Heterogen Atoms	39

Software

Software
Software Name	Purpose
MAR345dtb	data collection
SHARP	phasing
REFMAC	refinement
XDS	data reduction
SCALA	data scaling