1S2A

Crystal structures of prostaglandin D2 11-ketoreductase in complex with the non-steroidal anti-inflammatory drugs flufenamic acid and indomethacin

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	291	PEG, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.81

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.808	α = 90
b = 63.074	β = 90
c = 96.2	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 QUANTUM 4		2002-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.93	ESRF	ID14-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.7	52.7	98	0.049	18.7	3.4	38057	37296			16.54

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.7	1.79	88.3		0.2	4.7	2.7	5420

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	isomorphous replacement	THROUGHOUT	1S1P	1.7	20	35385	1860	97.79	0.17356	0.17227	0.19838	RANDOM	23.7

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]
0.33			0.27		-0.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.619
r_scangle_it	3.223
r_scbond_it	1.936
r_angle_refined_deg	1.602
r_angle_other_deg	1.423
r_mcangle_it	1.18
r_mcbond_it	0.59
r_symmetry_vdw_other	0.299
r_symmetry_hbond_refined	0.29
r_symmetry_vdw_refined	0.265
r_nbd_other	0.232
r_nbd_refined	0.211
r_xyhbond_nbd_refined	0.163
r_nbtor_other	0.086
r_chiral_restr	0.076
r_gen_planes_other	0.01
r_bond_refined_d	0.009
r_gen_planes_refined	0.008
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2524
Nucleic Acid Atoms
Solvent Atoms	361
Heterogen Atoms	78

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
CNS	phasing