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![[Figure 2]](za0129fig2mag.jpg)
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Figure 2
A stereographic projection of the κ = 180° section of a self-rotation function calculated using data from the RacE–glutamate crystals over the resolution range 15–3.0 Å with an integration radius of 15 Å. The tilt of the rotation axis away from the crystallographic c axis (ω, sometimes also called ψ) increases radially from 0 or 180° at the centre to 90° at the perimeter. The peak at ω = 90° and φ = 68° (arrowed) is a possible non-crystallographic twofold axis and represents 54% of the origin. |
![[Figure 2]](za0129fig2.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
