1UNH

Structural mechanism for the inhibition of CDK5-p25 by roscovitine, aloisine and indirubin.

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1H4L	PDB ENTRY 1H4L

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7		13% PEG 3350, 0.1 M KI 0.1 M BISTRISPROPANE PH 7.0, 10 MM DTT

Crystal Properties
Matthews coefficient	Solvent content
2.6	51.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 149.541	α = 90
b = 90.124	β = 93.29
c = 83.158	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	287	CCD	ADSC CCD		2001-04-15	M	SINGLE WAVELENGTH

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

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	2.25	30	98.8	0.075	20.4	17.2		50596		2.5

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	2.25	2.3	99.9		0.39	4.5

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 1H4L	2.35	19.88	43327	2303	99.3	0.229	0.229	0.23	RANDOM	38.5

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]
0.08		0.02	-0.28		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.219
r_angle_other_deg	3.711
r_scangle_it	3.288
r_scbond_it	2.154
r_angle_refined_deg	2.046
r_mcangle_it	1.286
r_mcbond_it	0.682
r_nbd_other	0.309
r_nbd_refined	0.287
r_xyhbond_nbd_refined	0.287
r_symmetry_vdw_other	0.273
r_symmetry_vdw_refined	0.173
r_symmetry_hbond_refined	0.173
r_nbtor_other	0.111
r_chiral_restr	0.096
r_bond_refined_d	0.016
r_gen_planes_other	0.007
r_gen_planes_refined	0.005
r_bond_other_d
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
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_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	6834
Nucleic Acid Atoms
Solvent Atoms	210
Heterogen Atoms	42

Software

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