3D5V

Crystal structure of an activated (Thr->Asp) Polo-like kinase 1 (Plk1) catalytic domain.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1MQ4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	277	hanging-drop vapor diffusion at 4 C (277K); protein at 7 mg/ml in 50 mM Tris-HCl pH 7.5, 200 mM NaCl and 3 mM DTT; crystallization condition: 0.1 M HEPES pH 7.5, 0.2 M (NH4)2SO4, 25% PEG 3350, and 5% glycerol; cryoprotectant: 15% ethylene glycol., VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 134.767	α = 90
b = 134.767	β = 90
c = 134.767	γ = 90

Symmetry
Space Group	I 2 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	180	CCD	ADSC QUANTUM 315		2006-12-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.98	SSRL	BL11-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.4	30	99.7	0.057	9.8	5.4		16020

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.4	2.53	100		0.376	2

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	1mq4	2.4	30	14785	1227	99.63	0.23665	0.23396	0.26897	RANDOM	53.555

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.487
r_dihedral_angle_4_deg	13.88
r_dihedral_angle_3_deg	13.736
r_dihedral_angle_1_deg	4.169
r_mcangle_it	2.372
r_scangle_it	1.778
r_mcbond_it	1.357
r_scbond_it	1.038
r_angle_refined_deg	0.866
r_nbtor_refined	0.294
r_nbd_refined	0.161
r_symmetry_vdw_refined	0.116
r_xyhbond_nbd_refined	0.092
r_symmetry_hbond_refined	0.075
r_chiral_restr	0.059
r_bond_refined_d	0.006
r_gen_planes_refined	0.002
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2091
Nucleic Acid Atoms
Solvent Atoms	116
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
CrystalClear	data collection
CrystalClear	data reduction
d*TREK	data scaling
MOLREP	phasing