1S5V

Crystal Structure Analysis of a mutant of DIHYDRODIPICOLINATE SYNTHASE--residue Tyr107 to Phe107

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	10	277	potassium phosphate (0.0012ml, 1.8M, pH10), N-octyl-beta-R-glucopyrandoside (0.0006ml, 6% w/v), VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.65	66.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.888	α = 90
b = 120.888	β = 90
c = 110.202	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	110	IMAGE PLATE	MARRESEARCH		2002-10-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

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	50	98.6	0.114				38813

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	2.41	95.4		0.28

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-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1DHP	2.35	20.94	36809	1942	100	0.19705	0.19705	0.19523	0.23174	RANDOM	27.689

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]
-1.3	-0.65		-1.3		1.95

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.998
r_scangle_it	2.363
r_scbond_it	1.323
r_angle_refined_deg	1.313
r_mcangle_it	0.882
r_angle_other_deg	0.871
r_mcbond_it	0.464
r_nbd_other	0.235
r_symmetry_vdw_other	0.199
r_nbd_refined	0.198
r_nbtor_other	0.152
r_symmetry_vdw_refined	0.147
r_xyhbond_nbd_refined	0.142
r_symmetry_hbond_refined	0.091
r_chiral_restr	0.075
r_bond_refined_d	0.011
r_gen_planes_other	0.006
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_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	4317
Nucleic Acid Atoms
Solvent Atoms	231
Heterogen Atoms

Software

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