2AE3

Glutaryl 7-Aminocephalosporanic Acid Acylase: mutational study of activation mechanism

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	295	PEG 3350, Tris, magnesium chloride, cacodylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.4	63.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.387	α = 90
b = 73.387	β = 90
c = 379.684	γ = 90

Symmetry
Space Group	P 41 21 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	ADSC QUANTUM 210		2005-05-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PAL/PLS BEAMLINE 4A	0.95	PAL/PLS	4A

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	2.4	50	90.1	0.064		6.5		37992

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	2.4	2.49		78.6	0.28		6.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.4	48.22	37927	1911	90.24	0.185	0.183	0.226	RANDOM	32.751

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]
0.01			0.01		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.287
r_sphericity_free	3.329
r_scangle_it	2.567
r_scbond_it	1.575
r_angle_refined_deg	1.345
r_mcangle_it	1.178
r_sphericity_bonded	1.083
r_rigid_bond_restr	0.926
r_angle_other_deg	0.85
r_mcbond_it	0.67
r_symmetry_vdw_refined	0.351
r_symmetry_vdw_other	0.271
r_nbd_other	0.238
r_nbd_refined	0.205
r_xyhbond_nbd_refined	0.162
r_symmetry_hbond_refined	0.1
r_nbtor_other	0.083
r_chiral_restr	0.08
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_gen_planes_other	0.005
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5358
Nucleic Acid Atoms
Solvent Atoms	223
Heterogen Atoms	6

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
CNS	phasing