2C9B | pdb_00002c9b

Lumazine Synthase from Mycobacterium tuberculosus Bound to 3-(1,3,7- TRIHYDRO-9-D-RIBITYL-2,6,8-PURINETRIONE-7-YL)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1W19	PDB ENTRY 1W19

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.4		pH 6.40

Crystal Properties
Matthews coefficient	Solvent content
2.36	50

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.045	α = 64.39
b = 78.364	β = 64.69
c = 88.843	γ = 65.03

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	105	IMAGE PLATE	MARRESEACH	MIRRORS	2005-05-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	ROTATING ANODE

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	2.65	15	89.1	0.15	4.4	2.5		59532		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	2.65	2.71	85.7		0.48	1.25	1.5

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1W19	2.75	10	35562	1897	89.5	0.254	0.25	0.25	0.324	RANDOM	32.84

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]
0.74	-1.17	-0.08	-0.1	1.23	-0.65

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.744
r_dihedral_angle_3_deg	15.492
r_dihedral_angle_4_deg	15.329
r_dihedral_angle_1_deg	4.16
r_angle_refined_deg	1.168
r_nbtor_refined	0.285
r_nbd_refined	0.185
r_symmetry_vdw_refined	0.174
r_symmetry_hbond_refined	0.142
r_xyhbond_nbd_refined	0.125
r_scangle_it	0.066
r_chiral_restr	0.063
r_scbond_it	0.048
r_mcangle_it	0.021
r_mcbond_it	0.01
r_bond_refined_d	0.007
r_gen_planes_refined	0.002
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	10598
Nucleic Acid Atoms
Solvent Atoms	654
Heterogen Atoms	291

Software

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