3IF2

Crystal structure of Putative amino-acid aminotransferase (YP_265399.1) from Psychrobacter arcticum 273-4 at 2.50 A resolution

Experimental procedure

Experimental method	MAD
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL9-2
Synchrotron site	SSRL
Beamline	BL9-2
Temperature [K]	100
Detector technology	CCD
Collection date	2009-03-20
Detector	MARMOSAIC 325 mm CCD
Wavelength(s)	0.91162,0.97934,0.97920
Spacegroup name	I 4
Unit cell lengths	152.813, 152.813, 100.614
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	29.975 - 2.500
R-factor	0.181
Rwork	0.178
R-free	0.22100
Structure solution method	MAD
RMSD bond length	0.015
RMSD bond angle	1.797
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	SHELX
Refinement software	REFMAC (5.5.0053)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	29.975	29.975	2.590
High resolution limit [Å]	2.500	5.350	2.500
Rmerge	0.075	0.035	0.438
Number of reflections	39646	7709	6839
<I/σ(I)>	9.14	20.1	2
Completeness [%]	93.7	95.1	85.1
Redundancy	3.79

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	5.6	293	0.1700M ammonium acetate, 15.0000% Glycerol, 25.5000% polyethylene glycol 4000, 0.1M sodium citrate pH 5.6, Additive: 0.001 M FeCl2, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K