4ID4

Crystal structure of chimeric beta-lactamase cTEM-17m

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	295	26% PEG 4000, 0.25M magnesium chloride, 0.1M TrisHCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.73	α = 90
b = 58.72	β = 90
c = 109.3	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	93	CCD	RAYONIX MX-300		2012-09-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	0.97949	CLSI	08ID-1

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	1.05	50	95.8	0.046	27.27	7.3	111024	106390

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	1.05	1.08	92.6		0.461	3.9	7.4	7512

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1ZG4	1.05	40	101069	101069	5320	95.82	0.11573	0.11573	0.11456	0.138	RANDOM	10.933

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]
-0.11			-0.23		0.34

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.629
r_sphericity_free	26.703
r_dihedral_angle_4_deg	14.078
r_dihedral_angle_3_deg	12.01
r_sphericity_bonded	10.736
r_rigid_bond_restr	7.169
r_dihedral_angle_1_deg	6.15
r_angle_refined_deg	2.086
r_angle_other_deg	1.025
r_chiral_restr	0.174
r_bond_refined_d	0.023
r_gen_planes_refined	0.011
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2002
Nucleic Acid Atoms
Solvent Atoms	412
Heterogen Atoms	6

Software

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