Experiment: 7AHB

Acyltransferase domain of the polyketide synthase PpsC of Mycobacterium tuberculosis

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2QO3

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		285	1.8 M ammonium sulfate, 0.2 M sodium thiocyanate, 0.1M Tris pH 8

Crystal Properties
Matthews coefficient	Solvent content
2.22	44.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.374	α = 65.839
b = 58.355	β = 73.279
c = 65.857	γ = 71.019

Symmetry
Space Group	P 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	ADSC QUANTUM 210		2005-11-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	0.933400	ESRF	ID23-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	CC (Half)	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	1.9	48.12	96.4	0.998	13.7	2.1		49339			20.24

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.968			0.81

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-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2QO3	1.9	48.12	1.98	49328	3197	91.56	0.189	0.1878	0.224	0.2059	28.53

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	20.3082
f_angle_d	0.8008
f_chiral_restr	0.0522
f_bond_d	0.0089
f_plane_restr	0.0063

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4863
Nucleic Acid Atoms
Solvent Atoms	543
Heterogen Atoms	79

Software

Software
Software Name	Purpose
XDS	data reduction
Coot	model building
PHASER	phasing
PHENIX	refinement