Crystallographic data.

<p>^a Numbers in parenthesis are for the highest resolution shell.</p><p>_merge = ∑_hkl(∑_i(|I _hkl,_i−<i>hkl >|))/∑_hkl,_i <i>hkl>, where I _hkl,_i is the intensity of an individual measurement of the reflection with Miller indices h, k and l, and hkl> is the mean intensity of that reflection.^b R</i></i></p><p><i><i>_cryst = ∑_hkl(||Fobs_hkl|−|Fcalc_hkl||)/|Fobs_hkl|, where |Fobs_hkl| and |Fcalc_hkl| are the observed and calculated structure factor amplitudes. R_free is equivalent to R_cryst but calculated with reflections (5%) omitted from the refinement process.^c R</i></i></p><p><i><i>^d Calculated with the program PROCHECK</i></i></p><p><i><i>α structures^e Asn239 is Ramachandran outlier in all IMP</i></i>