6MLG

Crystal structure of the periplasmic Lysine-, Arginine-, Ornithine-binding protein (LAO) R77A mutant from Salmonella typhimurium complexed with arginine

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU MICROMAX-007 HF
Temperature [K]	100
Detector technology	PIXEL
Collection date	2018-05-04
Detector	DECTRIS PILATUS 200K
Wavelength(s)	1.5418
Spacegroup name	P 21 21 21
Unit cell lengths	37.207, 57.656, 101.260
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	34.924 - 1.892
R-factor	0.1647
Rwork	0.159
R-free	0.21160
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1laf
RMSD bond length	0.007
RMSD bond angle	0.939
Data reduction software	HKL-3000
Data scaling software	HKL-3000
Phasing software	PHENIX (1.9_1692)
Refinement software	PHENIX (1.9_1692)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	1.940
High resolution limit [Å]	1.910	1.910
Rmerge	0.140	0.658
Number of reflections	31889	1582
<I/σ(I)>	19.9	2
Completeness [%]	98.9	97.1
Redundancy	4.8	3
CC(1/2)		0.572

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	6.5	291.15	0.2 M Sodium acetate trihydrate. 0.1 M Sodium cacodylate trihydrate pH 6.5 30% w/v Polyethylene glycol 8,000