Figure 3
(a) Electron-density OMIT maps for the flexible loop (residues 147–160) placed in an unusual position in the monomeric structure of LLT1 (LLT1_mono). 2mFo − DFc (blue, 0.8σ) and mFo − DFc (green, 2.5 σ) Fourier maps are drawn up to a distance of 1.6 Å from the atoms of residues 147–160. The residues are better localized in the middle of the loop, where they are stabilized by the nearby α-helix of a neighbouring molecule in the crystal (green). The loop is not modelled in the deposited structure because weak signal in this region causes unstable refinement. (b) Two neighbouring hexamers in the crystal of LLT1_glyco are connected by weak electron density belonging to the glycan chains. The glycosylated residues and GlcNAc units are shown as spheres. 2mFo − DFc (blue, 0.7σ) and mFo − DFc (green, 1.8σ) Fourier maps are shown. |