4H80

Crystal structure of human ALDH3A1 with its isozyme selective inhibitor - N-[4-(4-methylsulfonyl-2-nitroanilino)phenyl]acetamide

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3SZA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298.15	0.2 M Potassium acetate, 20 % PEG 3350, (3 microliters of 3 mg/mL of ALDH3A1 + 3 microlitres of mother liquor), pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298.15K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 89.106	α = 112.38
b = 95.38	β = 91.68
c = 117.228	γ = 90.99

Symmetry
Space Group	P 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 300 mm CCD	mirrors	2010-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-B	0.9869	APS	23-ID-B

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	2.5	50	93.6	0.25	0.067	10.4	2.2	123251	115363		0.2	26.5

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	2.5	2.54	72.5		0.25	3.1	2	4489

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	3SZA	2.5	50	117300	109547	5803	93.39	0.23541	0.23435	0.25529	RANDOM	62.888

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]
7.49	2.1	-1.72	-4.29	-1.9	-4.68

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.324
r_dihedral_angle_4_deg	18.05
r_dihedral_angle_3_deg	15.928
r_dihedral_angle_1_deg	5.056
r_scangle_it	1.691
r_angle_refined_deg	1.146
r_scbond_it	0.929
r_mcangle_it	0.685
r_mcbond_it	0.35
r_chiral_restr	0.069

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.324
r_dihedral_angle_4_deg	18.05
r_dihedral_angle_3_deg	15.928
r_dihedral_angle_1_deg	5.056
r_scangle_it	1.691
r_angle_refined_deg	1.146
r_scbond_it	0.929
r_mcangle_it	0.685
r_mcbond_it	0.35
r_chiral_restr	0.069
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	27874
Nucleic Acid Atoms
Solvent Atoms	219
Heterogen Atoms	192

Software

Software
Software Name	Purpose
HKL-3000	data collection
AMoRE	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.