1CKP

HUMAN CYCLIN DEPENDENT KINASE 2 COMPLEXED WITH THE INHIBITOR PURVALANOL B

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.4		pH 7.4

Crystal Properties
Matthews coefficient	Solvent content
2.02	36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.55	α = 90
b = 71.35	β = 90
c = 72	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	IMAGE PLATE	RIGAKU RAXIS II	MIRROR	1996-02-15	M	SINGLE WAVELENGTH

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

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	2.05	32	98.7	0.055	13.3	3		17655

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)
	2.05	2.11	91.6		0.185

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	OTHER	FREE-R	PDB ENTRY 1HCK	2.05	32	2	17381	1418	97.2	0.192	0.192	0.26	RANDOM	30.4

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
x_dihedral_angle_d	23.8
x_scangle_it	6
x_mcangle_it	4
x_scbond_it	3.6
x_mcbond_it	2.3
x_angle_deg	1.3
x_improper_angle_d	1.14
x_bond_d	0.007
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2260
Nucleic Acid Atoms
Solvent Atoms	91
Heterogen Atoms	30

Software

Software
Software Name	Purpose
CCP4	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing