1PQH

Serine 25 to Threonine mutation of aspartate decarboxylase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	292	Sodium malonate, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.46	α = 90
b = 70.46	β = 90
c = 215.299	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 4	Rh coated silicon mirror	2002-11-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.2	0.978	SRS	PX14.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.29	60	99	0.097	25.7	52.5	4278064	81391		2	15.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.29	1.3	97.9		0.77	4.4

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 1AW8	1.29	58.71	81391	76434	4045	98.93	0.1533	0.1533	0.1526	0.16637	RANDOM	7.724

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]
0.11	0.05		0.11		-0.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.368
r_scangle_it	1.962
r_angle_refined_deg	1.33
r_scbond_it	1.307
r_angle_other_deg	0.84
r_mcangle_it	0.822
r_mcbond_it	0.477
r_symmetry_vdw_other	0.303
r_symmetry_hbond_refined	0.261
r_nbd_other	0.248
r_symmetry_vdw_refined	0.235
r_xyhbond_nbd_refined	0.233
r_nbd_refined	0.217
r_nbtor_other	0.112
r_chiral_restr	0.089
r_bond_refined_d	0.011
r_gen_planes_refined	0.005
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1779
Nucleic Acid Atoms
Solvent Atoms	389
Heterogen Atoms	22

Software

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