2GYY

Structure of aspartate semialdehyde dehydrogenase (ASADH) from Streptococcus pneumoniae

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1YS4	PDB Entry: 1YS4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	100 mM MES pH 6.5 50 mM calcium acetate 20% PEG 3350 10 mM DTT, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 72.479	α = 90
b = 78.686	β = 90
c = 243.41	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV		2005-10-01	M	SINGLE WAVELENGTH

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

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	2.1	29.12	94.6	0.085	8	3.27	77734	77734	2	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	2.1	2.18	99.9		0.254	3.9	3.5	8072

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB Entry: 1YS4	2.1	29.11	77719	77719	3948	94.58	0.18	0.18	0.178	0.221	RANDOM	12.421

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]
1.03			-0.7		-0.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.965
r_scangle_it	1.825
r_angle_refined_deg	1.104
r_scbond_it	1.085
r_angle_other_deg	0.76
r_mcangle_it	0.578
r_mcbond_it	0.302
r_nbd_other	0.228
r_symmetry_vdw_other	0.227
r_symmetry_hbond_refined	0.189
r_nbd_refined	0.181
r_symmetry_vdw_refined	0.173
r_xyhbond_nbd_refined	0.152
r_nbtor_other	0.079
r_chiral_restr	0.067
r_bond_refined_d	0.008
r_gen_planes_refined	0.003
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	10562
Nucleic Acid Atoms
Solvent Atoms	1003
Heterogen Atoms

Software

Software
Software Name	Purpose
d*TREK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data reduction