1SK2

ARSENATE REDUCTASE R60A MUTANT +0.4M ARSENATE FROM E. COLI

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.8	278	50% saturated Cesium Sulfate, 100mM sodium acetate,5mM DTT, pH 4.80, VAPOR DIFFUSION, HANGING DROP, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.44	α = 90
b = 86.44	β = 90
c = 116.45	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	93	IMAGE PLATE	RIGAKU RAXIS IV	OSMIC MIRRORS	2001-10-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200

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	1.53	20	86.7	0.114	0.114	16.2	20.2		34198		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.53	1.586	42.3		0.5964	0.5964	1.529	5.25

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	SINGLE WAVELENGTH METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS	FREE R	NATIVE STRUCTURE	1.54	20	32561	32561	1609	83.8	0.1859	0.1857	0.1857	0.2297	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
4		1409.62

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.067
s_non_zero_chiral_vol	0.065
s_zero_chiral_vol	0.048
s_from_restr_planes	0.0294
s_angle_d	0.026
s_anti_bump_dis_restr	0.015
s_bond_d	0.009
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1080
Nucleic Acid Atoms
Solvent Atoms	289
Heterogen Atoms	19

Software

Software
Software Name	Purpose
SHELXL-97	refinement
XTALVIEW	refinement
SHELX	model building
X-GEN	data reduction
X-GEN	data scaling
SHELX	phasing

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.