3GIU

1.25 Angstrom Crystal Structure of Pyrrolidone-Carboxylate Peptidase (pcp) from Staphylococcus aureus

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.5	295	protein solution: 0.3M NaCl, 10mM Hepes pH 7.5; Screen solution: 20% PEG3350, Sodium Acetate 0.1M pH 4.5; Cryo solution: 7% Glycerol, 7% Ethilene Glycol, 7% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.79	α = 90
b = 81	β = 90
c = 119.91	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	MARMOSAIC 300 mm CCD	beryllium lenses	2008-11-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.72900	APS	21-ID-D

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	1.25	24.55	99	0.047	19.1	5.6	114545	114545		-3	10.7

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	1.25	1.32	95.1		0.404	3.6	4.5	15769

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	SAD	THROUGHOUT	1.25	24.55	108305	108305	5691	98.31	0.11775	0.11775	0.11616	0.14782	RANDOM	9.118

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]
-0.66			0.95		-0.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.749
r_sphericity_free	17.89
r_dihedral_angle_4_deg	11.238
r_dihedral_angle_3_deg	10.161
r_scangle_it	5.697
r_dihedral_angle_1_deg	5.398
r_sphericity_bonded	4.952
r_scbond_it	3.987
r_mcangle_it	2.713
r_mcbond_it	1.886
r_rigid_bond_restr	1.646
r_angle_refined_deg	1.459
r_angle_other_deg	0.918
r_mcbond_other	0.649
r_chiral_restr	0.091
r_bond_refined_d	0.011
r_gen_planes_refined	0.007
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3277
Nucleic Acid Atoms
Solvent Atoms	619
Heterogen Atoms	68

Software

Software
Software Name	Purpose
Blu-Ice	data collection
SHARP	phasing
REFMAC	refinement
XDS	data reduction
SCALA	data scaling