4OC1

X-ray structure of of human glutamate carboxypeptidase II (GCPII) in a complex with COIBzL, a urea-based inhibitor (2S)-2-[({(1S)-1-carboxy-2-[(2S)-oxiran-2-yl]ethyl}carbamoyl)amino]-6-[(4-iodobenzoyl)amino]hexanoic acid

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	33% (v/v) pentaerythritol propoxylate PO/OH 5/4, 1% (w/v) PEG 3350, 100 mM Tris-HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.29	62.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.396	α = 90
b = 130.353	β = 90
c = 158.944	γ = 90

Symmetry
Space Group	I 2 2 2

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	MARMOSAIC 225 mm CCD		2009-06-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	1	APS	22-BM

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.75	30	99.8			105692	105692	-3	-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.75	1.81	99

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	FOURIER SYNTHESIS	THROUGHOUT	1.75	29.48	-3	104328	104328	1053	99.58	0.16832	0.16832	0.16807	0.19294	RANDOM	28.685

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]
-0.02			-0.01		0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.525
r_dihedral_angle_4_deg	14.544
r_dihedral_angle_3_deg	13.862
r_dihedral_angle_1_deg	5.855
r_scangle_it	4.558
r_scbond_it	2.802
r_mcangle_it	1.731
r_angle_refined_deg	1.722
r_mcbond_it	0.992
r_chiral_restr	0.128

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.525
r_dihedral_angle_4_deg	14.544
r_dihedral_angle_3_deg	13.862
r_dihedral_angle_1_deg	5.855
r_scangle_it	4.558
r_scbond_it	2.802
r_mcangle_it	1.731
r_angle_refined_deg	1.722
r_mcbond_it	0.992
r_chiral_restr	0.128
r_bond_refined_d	0.019
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5528
Nucleic Acid Atoms
Solvent Atoms	529
Heterogen Atoms	210

Software

Software
Software Name	Purpose
MAR345dtb	data collection
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing

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.