2GKT

Crystal structure of the P14'-Ala32 variant of the N-terminally truncated OMTKY3-del(1-5)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	0.1M HEPES-Na pH 7.5, 10% v/v isopropanol, 20% PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

Crystal Properties
Matthews coefficient	Solvent content
1.83	32.64

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 23.049	α = 90
b = 34.692	β = 97.3
c = 25.795	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		CCD	ADSC QUANTUM 210		2003-10-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	0.954	ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.23	40	97.7				11526

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.23	1.27	91.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	1.23	25.58	10393	1131	97.56	0.13183	0.12971	0.15067	RANDOM	14.525

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]
-0.44		0.05	0.3		0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.849
r_dihedral_angle_3_deg	11.041
r_dihedral_angle_1_deg	6.176
r_scangle_it	3.28
r_scbond_it	2.682
r_mcangle_it	2.502
r_dihedral_angle_4_deg	2.384
r_angle_other_deg	2.358
r_mcbond_it	2.238
r_angle_refined_deg	1.895
r_mcbond_other	0.912
r_nbd_refined	0.174
r_symmetry_vdw_other	0.162
r_nbtor_refined	0.145
r_chiral_restr	0.138
r_nbd_other	0.112
r_xyhbond_nbd_refined	0.076
r_nbtor_other	0.062
r_symmetry_hbond_refined	0.055
r_symmetry_vdw_refined	0.05
r_bond_refined_d	0.021
r_gen_planes_refined	0.018
r_gen_planes_other	0.014
r_bond_other_d	0.011
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	393
Nucleic Acid Atoms
Solvent Atoms	64
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
MOLREP	phasing