2FK8

Crystal structure of Hma (MmaA4) from Mycobacterium tuberculosis complexed with S-adenosylmethionine

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2FK7	pdb entry 2FK7

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	285	4-28% PEG 3350, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 285.0K

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.779	α = 90
b = 56.779	β = 90
c = 199.035	γ = 120

Symmetry
Space Group	P 31 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	ADSC QUANTUM 4	Toroidal mirror	2004-12-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.979171	ESRF	ID14-4

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	30	97.7	0.085	4.8	3.9	25549	25549			30.6

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.11	88.1		0.223	2.9	3.2	3284

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 2FK7	2	30	24184	24184	1302	97.5	0.18214	0.18214	0.17928	0.23889	RANDOM	36.975

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]
0.52	0.26		0.52		-0.78

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.269
r_dihedral_angle_4_deg	21.181
r_dihedral_angle_3_deg	13.197
r_dihedral_angle_1_deg	5.55
r_scangle_it	3.916
r_scbond_it	2.566
r_angle_refined_deg	1.539
r_mcangle_it	1.489
r_mcbond_it	0.975
r_nbtor_refined	0.31
r_symmetry_hbond_refined	0.202
r_nbd_refined	0.201
r_symmetry_vdw_refined	0.183
r_xyhbond_nbd_refined	0.17
r_chiral_restr	0.114
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2236
Nucleic Acid Atoms
Solvent Atoms	153
Heterogen Atoms	27

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
PHASER	phasing