Table 1.

Structure determination of AAV-2

Space group	P1	Unit cell	a = b = 249.7 Å, c = 644.8 Å; α = 90.0°, β = 101.2°, γ = 120.0°
Data processing (three-fold-expanded in pseudo-R3)		Noncrystallographic averaging
Observations	747,988	Redundancy	180-fold
Unique reflections	495,356	Correlation coefficients
Resolution	100–3 Å (shell at 3.5 Å)	cc(2Fo − F〈map〉, φ〈map〉)	0.78
Completeness	56% (43%) (80% to 3.5 Å)	cc(Fo, F〈map〉)	0.65
Rmerge	0.156 (0.309)	R(Fo, F〈map〉)	0.32
Model
Amino acids	180 × 519	R/Rfree	0.338/0.342
Missing	1–14 (VP3)	rms deviations from ideal bond lengths/angles	0.02 Å/2.2°

^*R_merge = ∑_h∑_i[I_h,i − 〈I_h〉]/∑_h〈I_h〉, where I_h,i is the ith observation of a symmetry equivalent of reflection h.

^† F_〈map〉, φ_〈map〉 are Fourier terms of the back-transformed final averaged map.

^‡ Correlation between the densities of all noncrystallographic symmetry equivalent points.

^§ R_free is not unbiased. Test-set reflections are correlated to working-set reflections mapped to the neighborhood with noncrystallographic symmetry. However, with the high ratio of data to parameters, over-fitting will be negligible.