1X8G

Crystal Structure of the Mono-Zinc Carbapenemase CphA from Aeromonas Hydrophyla

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1X8H	CphA (N220G mutant)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	278	PEG, AS, pH 6.50, VAPOR DIFFUSION, HANGING DROP, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
2.5	51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 42.628	α = 90
b = 101.205	β = 90
c = 118.239	γ = 90

Symmetry
Space Group	C 2 2 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		2003-06-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.979469	ESRF	BM30A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	1.7	58.722	94.7	0.123	0.123	3.9	3.5		27567

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.7	1.79	94.7		0.312	0.312	2.8	3

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	CphA (N220G mutant)	1.7	25	25532	1370	94.04	0.184	0.18401	0.18306	0.20118	RANDOM	14.394

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]
			-0.55		0.56

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	8.133
r_dihedral_angle_1_deg	6.733
r_sphericity_bonded	5.079
r_scangle_it	4.114
r_scbond_it	2.483
r_angle_refined_deg	1.629
r_mcangle_it	1.478
r_angle_other_deg	0.914
r_mcbond_it	0.907
r_nbd_refined	0.385
r_symmetry_vdw_other	0.332
r_nbd_other	0.24
r_symmetry_hbond_refined	0.174
r_xyhbond_nbd_refined	0.16
r_symmetry_vdw_refined	0.108
r_chiral_restr	0.105
r_nbtor_other	0.083
r_metal_ion_refined	0.044
r_bond_refined_d	0.017
r_gen_planes_other	0.013
r_gen_planes_refined	0.01
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1758
Nucleic Acid Atoms
Solvent Atoms	178
Heterogen Atoms	10

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
CCP4	model building
REFMAC	refinement
CCP4	data scaling
CCP4	phasing