Experiment: 1LXY

Crystal Structure of Arginine Deiminase covalently linked with L-citrulline

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	282	PEG 6000, Potassium phosphate, L-citrulline, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 282K

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.24	α = 90
b = 76.37	β = 109.74
c = 82.9	γ = 90

Symmetry
Space Group	P 1 21 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	IMAGE PLATE	MARRESEARCH		1997-06-15	M	SINGLE WAVELENGTH
2	1	105	IMAGE PLATE	RIGAKU RAXIS II

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.1000	NSLS	X25
2	ROTATING ANODE	RIGAKU	1.5418

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	99	97.1	0.083	11.2		59662	59662

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)
	2	2.03	90.4		0.219	4.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	2	19.95	1	58076	2933	94.6	0.1861	0.186	0.186	0.227	0.2272	RANDOM	23.9

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]
4.66		2.03	-2.28		-2.38

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.3
c_scangle_it	4.85
c_scbond_it	4.22
c_mcangle_it	3.73
c_mcbond_it	3.33
c_angle_deg	1.6
c_improper_angle_d	0.88
c_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6540
Nucleic Acid Atoms
Solvent Atoms	550
Heterogen Atoms	40

Software

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