Protein Structure from Scientific Research

OST-A structure is shown in ribbon representation. Subunits are colored individually and labeled. Bound NGI-1 is shown as orange spheres. Bound LLO (Dol-PP-GlcNAc2Man9Glc3) is shown as black sticks. The inset shows a close-up view of NGI-1 and LLO binding sites, with STT3A shown in ribbon. NGI-1 is shown in orange sticks, and bound LLO is shown in black sticks. The dolichyl tail and the glycan moiety of the LLO are indicated and labeled. Manganese (II) ion is shown as a pink sphere.

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