2AE5

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

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	295	PEG 8000, Tris, magnesium chloride, cacodylate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.4	63.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 73.736	α = 90
b = 73.736	β = 90
c = 383.349	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	2.1	95.35	90.5	0.095		5.7		57515

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	2.1	2.18		81	0.453		5

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	2.24	50	48502	2472	92.46	0.175	0.173	0.209	RANDOM	23.787

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]
0.78			0.78		-1.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.018
r_scangle_it	2.412
r_sphericity_free	2.396
r_scbond_it	1.472
r_angle_refined_deg	1.231
r_mcangle_it	1.103
r_sphericity_bonded	0.95
r_rigid_bond_restr	0.833
r_angle_other_deg	0.827
r_mcbond_it	0.616
r_symmetry_vdw_other	0.261
r_nbd_other	0.238
r_nbd_refined	0.201
r_xyhbond_nbd_refined	0.129
r_symmetry_vdw_refined	0.096
r_nbtor_other	0.081
r_chiral_restr	0.076
r_symmetry_hbond_refined	0.058
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5363
Nucleic Acid Atoms
Solvent Atoms	382
Heterogen Atoms	11

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