2Q0F

Terminal uridylyl transferase 4 from Trypanosoma brucei with bound UTP and UMP

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL1-5
Synchrotron site	SSRL
Beamline	BL1-5
Collection date	2006-07-19
Wavelength(s)	0.979
Spacegroup name	P 1 21 1
Unit cell lengths	80.620, 41.924, 106.017
Unit cell angles	90.00, 94.37, 90.00

Refinement procedure

Resolution	38.980 - 2.400
R-factor	0.226
Rwork	0.223
R-free	0.29300
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	2ikf
RMSD bond length	0.012
RMSD bond angle	1.553
Data reduction software	d*TREK
Data scaling software	d*TREK (9.2L)
Phasing software	PHASER
Refinement software	REFMAC (5.2.0005)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	41.920	41.920	2.490
High resolution limit [Å]	2.400	5.170	2.400
Rmerge	0.140	0.045	0.476
Total number of observations		10431	9127
Number of reflections	26495
<I/σ(I)>	6.4	20.2	2.3
Completeness [%]	93.8	97.8	93
Redundancy	3.38	3.57	3.48

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	100 mM sodium cacodylate, 200 mM calcium acetate, 18% PEG-8000, 4 mM MgCl2, 50 uM UTP, crystals soaked in 10 mM UMP for 30 minutes, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K