2EFA

Neutron crystal structure of cubic insulin at pD6.6

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	NUCLEAR REACTOR
Source details	OTHER
Temperature [K]	298
Detector technology	IMAGE PLATE
Collection date	2005-07-22
Detector	BIX-4
Wavelength(s)	2.60
Spacegroup name	I 21 3
Unit cell lengths	79.035, 79.035, 79.035
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	80.000 - 2.700
Rwork	0.216
R-free	0.29100
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1b2a
RMSD bond length	0.010
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	80.000	2.590
High resolution limit [Å]	2.500	2.500
Rmerge	0.159	0.250
Number of reflections	2749
<I/σ(I)>		3.65
Completeness [%]	92.0	93.7
Redundancy	3.34

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	MICRODIALYSIS	6.6	298	0.2M Sodium phosphate, 8mM 3NaEDTA, pH 6.6(PD), MICRODIALYSIS, temperature 298K