Experiment: 2NYT

The APOBEC2 Crystal Structure and Functional Implications for AID

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.6	291.15	85mM NaCitrate, 160mM LiSO4, 24% (wt/vol) PEG, 15% glycerol, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 291.15K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 37.841	α = 90
b = 89.41	β = 90
c = 245.77	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77	CCD			2006-01-15	M	SINGLE WAVELENGTH
2	1	x-ray		M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	0.9774, 0.9796, 0.9798	ALS	8.2.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1,2	2.5	50	96.3	0.151	17.7			30088	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.5	50	85.5		0.333	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (I)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	2.5	50	2	24699			0.246	0.2627	0.295	0.309	Random

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	1.01753
c_bond_d	0.009299

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5996
Nucleic Acid Atoms
Solvent Atoms	88
Heterogen Atoms	4

Software

Software
Software Name	Purpose
HKL-2000	data collection
SHELXD	phasing
CNS	refinement
HKL-2000	data reduction
SCALEPACK	data scaling