Sequence-specific 1H, 13C, and 15N resonance assignments of GRP1 PH domain

The carboxy-terminal pleckstrin homology (PH) domain recruits GRP1 to the plasma membrane through the specific binding to phosphatidylinositol 3,4,5-trisphosphate [PtdIns(3,4,5)P₃]. Here, we describe backbone and side chain assignments of the GRP1 PH domain determined by triple resonance experiments. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.     

Sequence-specific 1H, 13C, and 15N backbone assignment of the activated 21 kDa GTPase rRheb

Ras homologue enriched in brain (Rheb) is a small GTPase that plays an important role in tuberous sclerosis. Here we present the backbone assignments of activated rRheb in complex with the non-hydrolisable GTP analogue GppNHp. These assignments now provide a basis for the analysis of rRheb’s interaction with putative effectors in order to further elucidate the physiological function of this GTPase and its role in the regulation of neuronal cell volume as well as in tuberous sclerosis.