 LAMTOR 1 surrounds most of the two heterodimers, providing structural support and keeping the heterodimers in place.When amino acids are present, the subunits are folded and positioned in such a way that allows for the Rag-GTPases to be anchored to its primary docking site of LAMTOR 2/3 on the Ragulator.The Rag-GTPases consist of two sets of heterodimers; RAGs A/B and RAGs C/D.