Structure, regulation and cellular functions of Rab geranylgeranyl transferase and its cellular partner Rab Escort Protein

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title : Structure , regulation and cellular functions of Rab geranylgeranyl transferase and its cellular partner

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Rab geranylgeranyl transferase alpha mutation in the gunmetal mouse reduces Rab prenylation and platelet synthesis.

Few molecular events important to platelet biogenesis have been identified. Mice homozygous for the spontaneous, recessive mutation gunmetal (gm) have prolonged bleeding, thrombocytopenia, and reduced platelet alpha- and delta-granule contents. Here we show by positional cloning that gm results from a G-->A substitution mutation in a splice acceptor site within the alpha-subunit of Rab geranylg...

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Cellular functions of Rab GTPases at a glance.

Rab GTPases control intracellular membrane traffic by recruiting specific effector proteins to restricted membranes in a GTP-dependent manner. In this Cell Science at a Glance and the accompanying poster, we highlight the regulation of Rab GTPases by proteins that control their membrane association and activation state, and provide an overview of the cellular processes that are regulated by Rab...

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Chemical genetics identifies Rab geranylgeranyl transferase as an apoptotic target of farnesyl transferase inhibitors.

A chemical genetics approach identified a cellular target of several proapoptotic farnesyl transferase inhibitors (FTIs). Treatment with these FTIs caused p53-independent apoptosis in Caenorhabditis elegans, which was mimicked by knockdown of endosomal trafficking proteins, including Rab5, Rab7, the HOPS complex, and notably the enzyme Rab geranylgeranyl transferase (RabGGT). These FTIs were fo...

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Targeting of Rab GTPases to cellular membranes.

Rab proteins are members of the superfamily of Ras-like small GTPases and are involved in several cellular processes relating to membrane trafficking and organelle mobility throughout the cell. Like other small GTPases, Rab proteins are initially synthesized as soluble proteins and for membrane attachment they require the addition of lipid moiety(ies) to specific residues of their polypeptide c...

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ژورنال

عنوان ژورنال: Molecular Membrane Biology

سال: 2012

ISSN: 0968-7688,1464-5203

DOI: 10.3109/09687688.2012.693211