2A0N

Crystal structure of Imidazole glycerol phosphate synthase subunit hisF (EC 4.1.3.-) (tm1036) from Thermotoga maritima at 1.64 A resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1VH7	PDB entry 1vh7

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP, NANODROP	6.9	273	0.2None Nal, 20.0% PEG-3350, No Buffer, pH 6.9, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 273K

Crystal Properties
Matthews coefficient	Solvent content
3.29	62.33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 96.61	α = 90
b = 96.61	β = 90
c = 155.828	γ = 120

Symmetry
Space Group	P 61 2 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 QUANTUM 315	Flat Mirror; Side-deflecting monochromator (Si 111)	2004-03-31	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1		SSRL	BL9-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.64	48.31	100	0.096	0.096	6.2	12.9		53271

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.64	1.68		100	0.014	0.01369	0.5	10.6

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 (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1vh7	1.64	48.31	50488	2704	99.99	0.168	0.167	0.192	RANDOM	20.454

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]
0.03	0.01		0.03		-0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.281
r_dihedral_angle_4_deg	20.161
r_dihedral_angle_3_deg	10.15
r_scangle_it	7.148
r_dihedral_angle_1_deg	5.213
r_scbond_it	5.007
r_mcangle_it	3.04
r_angle_refined_deg	1.908
r_mcbond_it	1.901
r_angle_other_deg	1.699
r_mcbond_other	0.555
r_nbd_refined	0.241
r_nbd_other	0.194
r_symmetry_vdw_other	0.181
r_xyhbond_nbd_refined	0.167
r_symmetry_hbond_refined	0.167
r_chiral_restr	0.099
r_nbtor_other	0.096
r_symmetry_vdw_refined	0.086
r_bond_refined_d	0.017
r_gen_planes_other	0.017
r_gen_planes_refined	0.012
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1915
Nucleic Acid Atoms
Solvent Atoms	279
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
MOLREP	phasing