1N0Q

3ANK: A designed ankyrin repeat protein with three identical consensus repeats

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	HEPES, MPD, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 39.636	α = 90
b = 43.159	β = 90
c = 105.574	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	77	CCD	ADSC QUANTUM 210		2002-03-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.000	ALS	8.3.1

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	1.26	19.96	99.52	0.087	11.8		43548	41302

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4ANK	1.26	19.96	1	43548	41302	2246	97.52	0.17136	0.17218	0.17136	0.18731	RANDOM	12.618

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]
0.98			-0.1		-0.88

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4.985
r_scangle_it	4.336
r_scbond_it	2.742
r_mcangle_it	1.415
r_angle_refined_deg	1.405
r_mcbond_it	0.752
r_symmetry_hbond_refined	0.254
r_xyhbond_nbd_refined	0.239
r_nbd_refined	0.226
r_symmetry_vdw_refined	0.143

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	4.985
r_scangle_it	4.336
r_scbond_it	2.742
r_mcangle_it	1.415
r_angle_refined_deg	1.405
r_mcbond_it	0.752
r_symmetry_hbond_refined	0.254
r_xyhbond_nbd_refined	0.239
r_nbd_refined	0.226
r_symmetry_vdw_refined	0.143
r_chiral_restr	0.081
r_bond_refined_d	0.011
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1388
Nucleic Acid Atoms
Solvent Atoms	183
Heterogen Atoms	6

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
EPMR	phasing
REFMAC	refinement
CCP4	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.