alexa Compartmentalized signalling: Ras proteins and signalling nanoclusters.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Proteomics & Bioinformatics

Author(s): Omerovic J, Prior IA

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Abstract Differential subcellular compartmentalization of the three main Ras isoforms (H-Ras, N-Ras and K-Ras) is believed to underlie their biological differences. Modulatable interactions between cellular membranes and Ras C-terminal hypervariable region motifs determine differences in trafficking and the relative proportions of each isoform in cell-surface signalling nanoclusters and intracellular endoplasmic reticulum/Golgi, endosomal and mitochondrial compartments. Ras regulators, effectors and scaffolds are also differentially distributed, potentially enabling preferential coupling to specific signalling pathways in each subcellular location. Here we summarize the mechanisms underlying compartment-specific Ras signalling and the outputs generated. This article was published in FEBS J and referenced in Journal of Proteomics & Bioinformatics

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