4CFN

Structure-based design of C8-substituted O6-cyclohexylmethoxyguanine CDK1 and 2 inhibitors.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1H1S	PDB ENTRY 1H1S

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				50 MM AMMONIUM ACETATE, 10% PEG-3350, 15 MM NACL, 100 MM HEPES, PH = 7.4, 10% DMSO

Crystal Properties
Matthews coefficient	Solvent content
2.87	57.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.981	α = 90
b = 134.416	β = 90
c = 147.865	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	100	CCD	ADSC CCD			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	2.2	2.32	92	0.07	10.8	2.33		68917

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)
1	2.2	2.32	77.4		0.42	2.1

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1H1S	2.2	99.5	65427	3463	91.17	0.19932	0.19714	0.2	0.24087	0.24	RANDOM	36.479

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]
-0.11			-1.82		1.93

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	42.02
r_dihedral_angle_3_deg	17.517
r_dihedral_angle_4_deg	17.412
r_dihedral_angle_1_deg	6.321
r_angle_other_deg	2.492
r_angle_refined_deg	1.826
r_mcangle_it	0.947
r_scbond_it	0.741
r_mcbond_it	0.611
r_mcbond_other	0.611
r_chiral_restr	0.161
r_bond_refined_d	0.017
r_gen_planes_refined	0.008
r_gen_planes_other	0.008
r_bond_other_d	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8880
Nucleic Acid Atoms
Solvent Atoms	555
Heterogen Atoms	60

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing