Experiment: 9M5S

Crystal structure of type A chloramphenicol acetyltransferase from Staphylococcus aureus at 1.8 angstrom resolution

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3CLA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		289	CoCl2,CH3COONa,1,6-Hexanediol

Crystal Properties
Matthews coefficient	Solvent content
2.81	56.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 103.551	α = 90
b = 103.551	β = 90
c = 46.249	γ = 120

Symmetry
Space Group	P 3 2 1

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	RIGAKU SATURN 944+		2022-05-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E	1.5418

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	1.8	32.19	97.3	0.045	15.4	6.9		25985			18.34

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	1.8	1.84	77.2		0.22		3.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	3CLA	1.8	32.19	1.34	25978	1279	97.25	0.1513	0.1505	0.1508	0.1662	0.1659	Random selection	23.53

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.7627
f_angle_d	0.9671
f_chiral_restr	0.0515
f_bond_d	0.0066
f_plane_restr	0.0061

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1787
Nucleic Acid Atoms
Solvent Atoms	264
Heterogen Atoms	57

Software

Software
Software Name	Purpose
CrystalClear	data collection
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing