1A55

PHOSPHATE-BINDING PROTEIN MUTANT A197C

Experimental procedure

Temperature [K]	277
Detector technology	IMAGE PLATE
Collection date	1997-08
Detector	RIGAKU RAXIS II
Spacegroup name	P 21 21 21
Unit cell lengths	42.040, 64.161, 124.353
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	12.000 - 2.400
R-factor	0.173 *
Rwork	0.173
R-free	0.22700
Structure solution method	MR
Starting model (for MR)	2abh
RMSD bond length	0.015
RMSD bond angle	3.204
Data reduction software	MOSFLM
Data scaling software	CCP4 ((SCALA))
Phasing software	CCP4
Refinement software	REFMAC

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	25.400
High resolution limit [Å]	2.400	2.400
Rmerge	0.047	0.190
Total number of observations	70788 *
Number of reflections	10913 *
Completeness [%]	86.6	69.2
Redundancy	2.9	2.1

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	7.6 *		used to seeding *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	10-15 (mg/ml)
2	1	drop	Tris-HCl	10 (mM)
3	1	reservoir	PEG6000	20-24 (%(w/v))
4	1	reservoir	potassium acetate	20 (mM)
5	1	reservoir	potassium phosphate	2 (mM)
6	1	reservoir		50 (mM)