1COI

DESIGNED TRIMERIC COILED COIL-VALD

Experimental procedure

Source type	ROTATING ANODE
Source details	RIGAKU RUH2R
Temperature [K]	293
Detector technology	IMAGE PLATE
Collection date	1994-05-12
Detector	RIGAKU RAXIS IIC
Spacegroup name	P 3 2 1
Unit cell lengths	33.600, 33.600, 40.530
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	10.000 - 2.100
R-factor	0.214
Rwork	0.214
R-free	0.28500
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	IDEAL ALPHA-HELIX
RMSD bond length	0.013
RMSD bond angle	17.000 *
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	X-PLOR (3.1)
Refinement software	X-PLOR (3.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	40.530	2.180
High resolution limit [Å]	2.100	2.100
Rmerge	0.091	0.229
Total number of observations	35980 *
Number of reflections	1710
<I/σ(I)>	31.36
Completeness [%]	99.7	100
Redundancy	21

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	5.5		used to seeding *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	2.5 (mg/ml)
2	1	reservoir	ammonium sulfate	3.0 (M)
3	1	reservoir		0.1-3.5 (mM)
4	1	reservoir		0.05 (M)