3IGF

Crystal Structure of the All4481 protein from Nostoc sp. PCC 7120, Northeast Structural Genomics Consortium Target NsR300

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	NSLS BEAMLINE X4A
Synchrotron site	NSLS
Beamline	X4A
Temperature [K]	100
Detector technology	CCD
Collection date	2009-07-14
Detector	ADSC QUANTUM 4
Wavelength(s)	0.97908
Spacegroup name	C 1 2 1
Unit cell lengths	124.170, 55.553, 122.363
Unit cell angles	90.00, 98.87, 90.00

Refinement procedure

Resolution	19.960 - 2.000
R-factor	0.19
Rwork	0.189
R-free	0.23300
Structure solution method	SAD
RMSD bond length	0.017
RMSD bond angle	1.700
Data reduction software	HKL-2000
Data scaling software	SCALEPACK
Phasing software	SnB (then SOLVE/RESOLVE)
Refinement software	CNS (1.2 & XtalView)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	30.000	2.070
High resolution limit [Å]	2.000	2.000
Rmerge	0.063	0.288
Number of reflections	110202
<I/σ(I)>	18.8	3.9
Completeness [%]	99.4	99.1
Redundancy	3.3	3.1

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	6.15	291	Protein solution: 100mM NaCl, 5mM DTT, 0.02% NaN3, 10mM Tris-HCl (pH 7.5) . Reservoir solution: 100mM MES (pH 6.15), 18% PEG3350, and 100mM potassium nitrate., VAPOR DIFFUSION, HANGING DROP, temperature 291K