1Y42

Crystal structure of a C-terminally truncated CYT-18 protein

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8	298	pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.26	45.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 104.88	α = 90
b = 73.21	β = 111.35
c = 56.79	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					M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.54

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	1.95	20	97.8	0.107	20.7			28540		3

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	1.95	2	89.1		0.254	3		1571

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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	pdb entry 2TS1	1.95	20	25832	25832	1936	94.98	0.17886	0.17886	0.17395	0.23541	RANDOM	23.176

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]
-0.97		-0.46	1.48		-0.85

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.832
r_dihedral_angle_4_deg	16.683
r_dihedral_angle_3_deg	14.754
r_sphericity_free	9.244
r_dihedral_angle_1_deg	6.204
r_scangle_it	4.211
r_rigid_bond_restr	3.297
r_scbond_it	3.255
r_sphericity_bonded	2.561
r_mcangle_it	2.084
r_angle_refined_deg	1.621
r_mcbond_it	1.494
r_angle_other_deg	0.947
r_mcbond_other	0.489
r_symmetry_hbond_refined	0.4
r_symmetry_vdw_other	0.216
r_nbd_refined	0.215
r_nbd_other	0.201
r_symmetry_vdw_refined	0.191
r_xyhbond_nbd_refined	0.19
r_nbtor_refined	0.187
r_chiral_restr	0.111
r_nbtor_other	0.088
r_xyhbond_nbd_other	0.05
r_bond_refined_d	0.018
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2950
Nucleic Acid Atoms
Solvent Atoms	198
Heterogen Atoms	13

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
SCALEPACK	data scaling
CNS	phasing