2WFY

Truncation and Optimisation of Peptide Inhibitors of CDK2, Cyclin A Through Structure Guided Design

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.8		PEG3350 30% V/V, 0.1M TRI-SODIUM CITRATE, pH 7.8

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.621	α = 90
b = 115.813	β = 90
c = 157.911	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	MIRRORS		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.1		SRS	PX14.1

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	2.53	40	80	0.3	9	13		46387		1.3

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	2.53	2.56	70		0.3	1.34

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	PDB ENTRY 1OKV	2.53	40	41853	880	92.17	0.19466	0.19328	0.25878	RANDOM	52.652

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]
-3.49			1		2.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.514
r_dihedral_angle_4_deg	22.41
r_dihedral_angle_3_deg	20.113
r_dihedral_angle_1_deg	6.764
r_scangle_it	5.578
r_scbond_it	3.692
r_mcangle_it	2.262
r_angle_refined_deg	1.608
r_mcbond_it	1.411
r_nbtor_refined	0.327
r_nbd_refined	0.244
r_symmetry_vdw_refined	0.226
r_xyhbond_nbd_refined	0.195
r_symmetry_hbond_refined	0.161
r_chiral_restr	0.114
r_bond_refined_d	0.013
r_gen_planes_refined	0.005
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_mcangle_other
r_scbond_other
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	9017
Nucleic Acid Atoms
Solvent Atoms	443
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing