2CCA

Crystal structure of the catalase-peroxidase (KatG) and S315T mutant from Mycobacterium tuberculosis

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1MWV	PDB ENTRY 1MWV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6		6% PEG4000, 0.1M NA ACETATE, PH4.6, 0.17MM N-DODECYL-B-D-MALTOSIDE, PROTEIN CONCENTRATION OF 16MG/ML, pH 4.60

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 150.104	α = 90
b = 150.104	β = 90
c = 153.718	γ = 90

Symmetry
Space Group	P 42 21 2

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 CCD	MIRRORS	2003-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 14-ID-B		APS	14-ID-B

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	1.9	50	99	0.08	26.2	7		105049

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	50	96.7		0.35	4.6	4.9

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1MWV	2	20	110889	5847	99	0.2	0.199	0.225	RANDOM	23.93

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]
-0.87			-0.87		1.73

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.42
r_dihedral_angle_4_deg	16.151
r_dihedral_angle_3_deg	15.032
r_dihedral_angle_1_deg	5.02
r_scangle_it	1.576
r_angle_refined_deg	1.056
r_scbond_it	0.968
r_mcangle_it	0.703
r_mcbond_it	0.404
r_nbtor_refined	0.302
r_symmetry_vdw_refined	0.221
r_nbd_refined	0.196
r_symmetry_hbond_refined	0.134
r_xyhbond_nbd_refined	0.133
r_chiral_restr	0.078
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11032
Nucleic Acid Atoms
Solvent Atoms	938
Heterogen Atoms	86

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing
CNS	phasing
XTALVIEW	phasing