4TNX

Structure basis of cellular dNTP regulation, SAMHD1-GTP-dGTP complex

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 24-ID-E
Synchrotron site	APS
Beamline	24-ID-E
Temperature [K]	100
Detector technology	CCD
Collection date	2013-08-05
Detector	ADSC QUANTUM 315
Wavelength(s)	0.9792
Spacegroup name	P 1 21 1
Unit cell lengths	80.886, 140.734, 97.603
Unit cell angles	90.00, 114.71, 90.00

Refinement procedure

Resolution	50.000 - 2.310
R-factor	0.1898
Rwork	0.188
R-free	0.22630
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4bzb
RMSD bond length	0.014
RMSD bond angle	1.563
Data reduction software	HKL-2000
Refinement software	REFMAC (5.8.0071)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	50.000	50.000	2.340
High resolution limit [Å]	2.300	6.240	2.300
Rmerge	0.136	0.065
Total number of observations	619894
Number of reflections	86382
<I/σ(I)>	6.3
Completeness [%]	100.0	100	100
Redundancy	7.2	7.5	6.3

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	BATCH MODE		298	SPG buffer, PEG 1500