1HZP

Crystal Structure of the Myobacterium Tuberculosis Beta-Ketoacyl-Acyl Carrier Protein Synthase III

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1EBL	poly alanine chain based on residues 1-317 from E Coli FabH (RCSB entry 1EBL)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	8	298	PEG4000, Tris/HCl. 300mM NaCl, glycerol, 10mM CaCl2, pH 8.0, VAPOR DIFFUSION, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.21	43.9

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.082	α = 90
b = 54.779	β = 90.3
c = 89.152	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	113	IMAGE PLATE	RIGAKU RAXIS II	Osmic Confocal optics		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	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	2.1	99	99.4	0.119	8.3	3	37716	37503		-3	26.4

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	2.14	99		0.688	1.8	2.7	1860

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	THROUGHOUT	poly alanine chain based on residues 1-317 from E Coli FabH (RCSB entry 1EBL)	2.1	30.38	2	35649	3560	97.8	0.222	0.222	0.22	0.262	0.26	RANDOM	31.7

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]
-7.5		-0.38	8.31		-0.81

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.5
c_scbond_it	7.45
c_scangle_it	6.45
c_mcangle_it	1.52
c_angle_deg	1.4
c_mcbond_it	0.94
c_improper_angle_d	0.84
c_bond_d	0.007
c_bond_d_na
c_bond_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4743
Nucleic Acid Atoms
Solvent Atoms	258
Heterogen Atoms	56

Software

Software
Software Name	Purpose
bioteX	data collection
SCALEPACK	data scaling
CNS	refinement
bioteX	data reduction
CNS	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.