4PEM

Crystal Structure of S1G mutant of Penicillin G Acylase from Kluyvera citrophila

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		293	30%(w/v) PEG 4000, 50 mM sodium cacodylate pH 5.6 0.5 M potassium thiocyanate

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54	α = 104.05
b = 124.561	β = 101.37
c = 135.139	γ = 96.51

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	PSI PILATUS 6M		2012-10-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-2	0.956	SSRL	BL12-2

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	2.5	38.6	76.5	0.095	6.1	1.7		87317

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	2.5	2.6	80.6		0.55	1.2	1.6

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	MOLECULAR REPLACEMENT	THROUGHOUT	1E3A	2.5	38	82837	4354	76.34	0.25043	0.24823	0.29182	RANDOM	44.01

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]
-2.53	2.76	-0.35	4.17	2.33	-2.91

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.255
r_dihedral_angle_3_deg	17.614
r_dihedral_angle_4_deg	17.268
r_long_range_B_refined	7.196
r_long_range_B_other	7.183
r_dihedral_angle_1_deg	6.007
r_mcangle_it	4.627
r_mcangle_other	4.627
r_scangle_other	4.618
r_angle_other_deg	3.672
r_mcbond_it	3.035
r_mcbond_other	3.035
r_scbond_it	3.003
r_scbond_other	3.002
r_angle_refined_deg	1.221
r_chiral_restr	0.074
r_bond_refined_d	0.011
r_gen_planes_other	0.008
r_gen_planes_refined	0.006
r_bond_other_d
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	25688
Nucleic Acid Atoms
Solvent Atoms	428
Heterogen Atoms	1

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
PHASER	phasing
XDS	data scaling