1MRA

MANDELATE RACEMASE MUTANT D270N CO-CRYSTALLIZED WITH (S)-ATROLACTATE

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				THE INHIBITOR CONSTANT (K SUB I) FOR (S)-ATROLACTATE IS APPROXIMATELY 0.2 MILLIMOLAR; CRYSTALS WERE OBTAINED FROM A SOLUTION THAT CONTAINED 5 MILLIMOLAR INHIBITOR.

Crystal Properties
Matthews coefficient	Solvent content
2.71	55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 125	α = 90
b = 125	β = 90
c = 107.1	γ = 90

Symmetry
Space Group	I 4 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		AREA DETECTOR	SIEMENS		1993-07-25	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1

Data Collection

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.1	20	1	19219		74.6

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]

RMS Deviations
Key	Refinement Restraint Deviation
t_dihedral_angle_d	25
t_it	8.1
t_angle_deg	1.72
t_gen_planes	0.014
t_bond_d	0.013
t_trig_c_planes	0.012
t_nbd	0.003
t_incorr_chiral_ct
t_pseud_angle

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2698
Nucleic Acid Atoms
Solvent Atoms	111
Heterogen Atoms	13

Software

Software
Software Name	Purpose
TNT	refinement
XDS	data reduction
XSCALE	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 R01GM133198.