1XLX

Catalytic Domain Of Human Phosphodiesterase 4B In Complex With Cilomilast

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	10	277	ammonium sulfate and lithium sulfate , pH 10, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.274	α = 90
b = 94.259	β = 90
c = 106.078	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	93	CCD	ADSC QUANTUM 210		2003-08-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.1	ALS	8.3.1

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	2.19	70.71	92.75	0.072	6.6	4.6	41167	41167

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	2.19	2.247	95.9		0.666	1.1	4.5	3048

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.19	70.71	41167	41167	2198	92.75	0.23493	0.23493	0.23249	0.28225	RANDOM	12.326

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]
-5.78			-1.29		7.07

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	3.916
r_dihedral_angle_1_deg	3.664
r_scbond_it	2.628
r_angle_refined_deg	1.994
r_mcangle_it	1.622
r_angle_other_deg	1.039
r_mcbond_it	0.953
r_symmetry_vdw_other	0.306
r_nbd_other	0.235
r_nbd_refined	0.229
r_symmetry_vdw_refined	0.177
r_xyhbond_nbd_refined	0.167
r_symmetry_hbond_refined	0.127
r_chiral_restr	0.121
r_nbtor_other	0.1
r_metal_ion_refined	0.098
r_bond_refined_d	0.024
r_gen_planes_refined	0.011
r_gen_planes_other	0.007
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5229
Nucleic Acid Atoms
Solvent Atoms	73
Heterogen Atoms	54

Software

Software
Software Name	Purpose
REFMAC	refinement
Blu-Ice	data collection
ELVES	data scaling
EPMR	phasing