3D2S

Crystal structure of MBNL1 tandem zinc finger 3 and 4 domain in complex with CGCUGU RNA

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	5.5	277	25% PEG 3350, 0.1M Bis-Tris, pH 5.5, VAPOR DIFFUSION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.421	α = 90
b = 56.899	β = 108.81
c = 58.222	γ = 90

Symmetry
Space Group	P 1 21 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	ADSC QUANTUM 315		2006-12-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-C	0.9795	APS	24-ID-C

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	1.7	50	99.9	0.074	17.7			38651		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.7	1.76	100		0.44	3.6	4.8	3846

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	MBNL1 ZnF3/4 structure	1.7	20	36684	1935	99.88	0.2263	0.22448	0.25984	RANDOM	14.101

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]
-0.29		0.37	-0.12		0.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.674
r_dihedral_angle_4_deg	18.27
r_dihedral_angle_3_deg	14.932
r_dihedral_angle_1_deg	6.108
r_scangle_it	3.454
r_scbond_it	2.27
r_mcangle_it	1.845
r_angle_refined_deg	1.631
r_angle_other_deg	1.293
r_mcbond_it	1.188
r_symmetry_vdw_other	0.3
r_mcbond_other	0.233
r_nbd_other	0.212
r_nbd_refined	0.195
r_xyhbond_nbd_refined	0.19
r_nbtor_refined	0.179
r_symmetry_hbond_refined	0.172
r_symmetry_vdw_refined	0.113
r_nbtor_other	0.088
r_chiral_restr	0.084
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other	0.001
r_metal_ion_refined
r_metal_ion_other
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	2178
Nucleic Acid Atoms	364
Solvent Atoms	402
Heterogen Atoms	8

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling
AMoRE	phasing