4IMO

Crystal structure of wild type human Lipocalin PGDS in complex with substrate analog U44069

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2CZT

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	0.1M potassium thiocyanate, 30% PEG MME 2000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
1.89	34.79

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.24	α = 90
b = 56.38	β = 90
c = 72.92	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	198	CCD	ADSC QUANTUM 315		2011-09-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSRRC BEAMLINE BL13B1	0.97622	NSRRC	BL13B1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.88	36.49	100	0.078	0.078	7.4	4.2	12735	12735		-3	23.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.88	1.98	100		0.359	0.274	2.8	4.2	1826

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (All)	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	2CZT	1.88	36.49	-3	12074	12074	620	99.98	0.19174	0.18911	0.24154	RANDOM	23.509

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]
0.16			-0.71		0.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.653
r_dihedral_angle_4_deg	13.963
r_dihedral_angle_3_deg	11.994
r_dihedral_angle_1_deg	6.316
r_angle_refined_deg	1.508
r_angle_other_deg	1.478
r_chiral_restr	0.082
r_bond_refined_d	0.011
r_bond_other_d	0.007
r_gen_planes_refined	0.006

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.653
r_dihedral_angle_4_deg	13.963
r_dihedral_angle_3_deg	11.994
r_dihedral_angle_1_deg	6.316
r_angle_refined_deg	1.508
r_angle_other_deg	1.478
r_chiral_restr	0.082
r_bond_refined_d	0.011
r_bond_other_d	0.007
r_gen_planes_refined	0.006
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1215
Nucleic Acid Atoms
Solvent Atoms	82
Heterogen Atoms	56

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.