3KV2

HIGH RESOLUTION STRUCTURE OF HUMAN ARGINASE I IN COMPLEX WITH THE STRONG INHIBITOR N(omega)-hydroxy-nor-L-arginine (nor-NOHA)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 24-ID-C
Synchrotron site	APS
Beamline	24-ID-C
Temperature [K]	100
Detector technology	CCD
Collection date	2009-10-01
Detector	ADSC QUANTUM 315
Wavelength(s)	1.0
Spacegroup name	P 3
Unit cell lengths	90.497, 90.497, 69.604
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	50.000 - 1.550
R-factor	0.1436
Rwork	0.144
R-free	0.17820
Structure solution method	PHASER
Starting model (for MR)	2ZAV monomer A
RMSD bond length	0.006
RMSD bond angle	1.340
Data reduction software	HKL-2000
Data scaling software	SCALEPACK
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	1.650
High resolution limit [Å]	1.550	1.550
Rmerge	0.144	0.302
Number of reflections	90987
<I/σ(I)>	14.4
Completeness [%]	98.2	96.2
Redundancy		2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP			Hanging drops containing 3 L protein solution [3.5 mg/mL protein, 50 mM bicine (pH 8.5), 2 mM nor-NOHA, 100 M MnCl2] and 3 L precipitant solution [0.1 M bis-Tris (pH 6.5), 28% PEG monomethyl ether 2000] were equilibrated over a 1 mL reservoir of precipitant solution at 2 C. , VAPOR DIFFUSION, HANGING DROP