1IC1

THE CRYSTAL STRUCTURE FOR THE N-TERMINAL TWO DOMAINS OF ICAM-1

Experimental procedure

Temperature [K]	113
Detector technology	IMAGE PLATE
Collection date	1996-09
Detector	MARRESEARCH
Spacegroup name	P 1 2 1
Unit cell lengths	88.000, 42.200, 93.000
Unit cell angles	90.00, 109.30, 90.00

Refinement procedure

Resolution	15.000 - 3.000
R-factor	0.222
Rwork	0.222
R-free	0.27900
Structure solution method	SINGLE ISOMORPHOUS REPLACEMENT AND MOLECULAR REPLACEMENT
Starting model (for MR)	PDB ENTRIES 1ZXQ AND 1VSC
RMSD bond length	0.018
RMSD bond angle	2.808
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]	20.000	3.000
High resolution limit [Å]	2.900	2.900
Rmerge	0.101	0.389
Number of reflections	13176
<I/σ(I)>	6.2	2
Completeness [%]	95.0	97.4
Redundancy	2.4	2.4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	6.5	4 *	17% PEG 4000, NA CACODYLATE, PH 6.5, AND 100 MM B-OCTYL-GLUCOPYRANOSIDE.

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	8 (mg/ml)
2	1	drop	Tris-HCl	10 (mM)
3	1	drop	PEG4000	8.5 (%)
4	1	drop	beta-octyl glucopyranoside	50 (mM)
5	1	reservoir	PEG4000	17 (%)
6	1	reservoir	Tris-HCl	10 (mM)
7	1	reservoir	beta-octyl glucopyranoside	100 (mM)