1VS1

Crystal structure of 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase (DAHP synthase) from Aeropyrum pernix in complex with Mn2+ and PEP

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				0.1 M HEPES, 0.2 M lithium sulfate, 0.2 M magnesium chloride, 30% v/v 2-propanol, 10% v/v butanol

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.768	α = 90
b = 130.404	β = 110.61
c = 78.362	γ = 90

Symmetry
Space Group	P 1 21 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	MARMOSAIC 225 mm CCD		2004-07-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	0.92015	APS	22-BM

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	2.2	90.7	90.7	0.093	19.2	7.4	47755	47755	-3

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)
	2.2	2.28	46		0.344	8.6	6.1	2403

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	FRAGMENT OF PDB ENTRY 1RZM	2.3	20	47755	41839	2246	96.54	0.17562	0.17329	0.21754	RANDOM	36.141

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]
2.01		-0.69	-3.48		0.99

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.08
r_dihedral_angle_4_deg	19.506
r_dihedral_angle_3_deg	16.422
r_scangle_it	7.296
r_scbond_it	5.721
r_dihedral_angle_1_deg	5.605
r_mcangle_it	2.844
r_angle_refined_deg	1.666
r_mcbond_it	1.644
r_symmetry_hbond_refined	0.47
r_nbtor_refined	0.306
r_symmetry_vdw_refined	0.268
r_nbd_refined	0.214
r_xyhbond_nbd_refined	0.152
r_chiral_restr	0.108
r_bond_refined_d	0.019
r_gen_planes_refined	0.007
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	8187
Nucleic Acid Atoms
Solvent Atoms	191
Heterogen Atoms	44

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
SHELXD	phasing
SHELXE	model building
MLPHARE	phasing
DM	phasing
SOLVE	phasing
RESOLVE	phasing
O	model building
Coot	model building
CCP4	phasing