1GU9

Crystal Structure of Mycobacterium tuberculosis Alkylperoxidase AhpD

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6		100MM SODIUM CITRATE BUFFER, PH 5.6, CONTAINING 200MM AMMONIUM ACETATE AND 26% PEG 4000. MIXED IN EQUAL VOLUME WITH AHPD (4.5 MG/ML) IN 25 MM MOPS BUFFER, PH 7.2, CONTAINING 50 MM KCL, 10% GLYCEROL, 0.1MM EDTA

Crystal Properties
Matthews coefficient	Solvent content
1.97	37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 186.377	α = 90
b = 117.28	β = 113.97
c = 88.986	γ = 90

Symmetry
Space Group	C 1 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	110	CCD	MARRESEARCH	MIRRORS	2001-06-15	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	0.88550,0.918400,0.978900 , 0.97877	ESRF	BM14

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	30	99.5	0.072	7.2	3.7		136927		2	19.1

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	1.9	1.97	99.3		0.42	2.75	3.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	MAD	THROUGHOUT	1.9	29.6	2	136435	13434	99.5	0.243	0.243	0.313	RANDOM	33.8

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]
2.61		0.36	-0.91		-1.7

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	18.70926
c_scangle_it	13.399
c_scbond_it	11.957
c_mcangle_it	11.295
c_mcbond_it	11.088
c_angle_deg	1.3408
c_improper_angle_d	0.91609
c_bond_d	0.00922
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	15327
Nucleic Acid Atoms
Solvent Atoms	847
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
HKL	data reduction
SCALEPACK	data scaling
CNS	phasing