2AY4

AROMATIC AMINO ACID AMINOTRANSFERASE WITH 3-(P-TOLYL)PROPIONIC ACID

Experimental procedure

Source type	ROTATING ANODE
Source details	RIGAKU RUH2R
Temperature [K]	293
Detector technology	IMAGE PLATE
Collection date	1997-08-02
Detector	RIGAKU
Spacegroup name	P 21 21 21
Unit cell lengths	124.200, 121.790, 55.170
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	6.000 - 2.200
R-factor	0.181
Rwork	0.181
R-free	0.23000
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1ay8
RMSD bond length	0.006
RMSD bond angle	22.700 *
Data reduction software	PROCESS ((RIGAKU))
Data scaling software	PROCESS ((RIGAKU))
Phasing software	X-PLOR (3.1)
Refinement software	X-PLOR (3.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	87.000	2.270
High resolution limit [Å]	2.200	2.200
Rmerge	0.066	0.146
Total number of observations	96560 *
Number of reflections	31319
<I/σ(I)>	120	15
Completeness [%]	98.1	96.8
Redundancy	3.1	1

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	micro-seeding *	6.2		pH 6.2

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	reservoir	PEG4000	24.0 (%(w/v))
2	1	reservoir	sodium maleate	0.2 (M)
3	1	reservoir		5 (mM)