2JAP

Clavulanic Acid Dehydrogenase: Structural and Biochemical Analysis of the Final Step in the Biosynthesis of the beta-Lactamase Inhibitor Clavulanic acid

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		25% PEG 2000,MONOMETHYL ETHER, 0.8 M SODIUM FORMATE, 0.1 M CACODYLATE BUFFER (PH 6.5)

Crystal Properties
Matthews coefficient	Solvent content
2.2	42.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.076	α = 90
b = 123.423	β = 90
c = 126.78	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	MARRESEARCH		2004-06-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	2.1	34.9	99.4	0.09	14.6	4.9		53663		6

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	2.1	98.3		0.4	3.4	4.5

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	OTHER	THROUGHOUT	2.1	34.86	50900	2713	99.2	0.186	0.184	0.216	RANDOM	32.8

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]
0.04			0.31		-0.35

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.602
r_dihedral_angle_3_deg	13.753
r_dihedral_angle_4_deg	13.219
r_dihedral_angle_1_deg	5.777
r_scangle_it	2.008
r_angle_refined_deg	1.562
r_scbond_it	1.243
r_mcangle_it	0.515
r_mcbond_it	0.338
r_nbtor_refined	0.293
r_symmetry_vdw_refined	0.192
r_nbd_refined	0.19
r_symmetry_hbond_refined	0.157
r_xyhbond_nbd_refined	0.114
r_chiral_restr	0.078
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7335
Nucleic Acid Atoms
Solvent Atoms	253
Heterogen Atoms	248

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling