2Q1X

Crystal Structure of cell division protein FtsZ from Mycobacterium tuberculosis in complex with citrate.

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1FSZ	PDB entry 1FSZ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	293	0.1M sodium citrate pH 5.6, 30% PEG 4000, 0.3M ammonium acetate, 40% acetonitrile, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.58	52.4

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.73	α = 90
b = 88.73	β = 90
c = 176.482	γ = 120

Symmetry
Space Group	P 65

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		2004-02-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X26C	1.1	NSLS	X26C

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	2.35	40	100	0.1	8.1	9.5		32681		2

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	2.35	2.43	100		0.554	4.7	9.5	3250

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 1FSZ	2.35	40	32672	1646	99.99	0.18	0.178	0.215	RANDOM	34.195

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]
-0.19	-0.09		-0.19		0.28

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.062
r_dihedral_angle_4_deg	18.986
r_dihedral_angle_3_deg	13.187
r_dihedral_angle_1_deg	4.8
r_scangle_it	1.962
r_mcangle_it	1.816
r_mcbond_it	1.543
r_scbond_it	1.21
r_angle_refined_deg	1.16
r_angle_other_deg	0.746
r_symmetry_hbond_refined	0.226
r_mcbond_other	0.196
r_nbd_refined	0.195
r_nbd_other	0.169
r_nbtor_refined	0.158
r_symmetry_vdw_other	0.154
r_xyhbond_nbd_refined	0.136
r_symmetry_vdw_refined	0.133
r_nbtor_other	0.082
r_chiral_restr	0.071
r_bond_refined_d	0.014
r_gen_planes_refined	0.003
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4178
Nucleic Acid Atoms
Solvent Atoms	123
Heterogen Atoms	13

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction