PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 30394597-2 2018 GTPase Rac1 was one protein identified, and interfering with its GTP/GDP cycle in mixed primary rat brain cultures affected both the clustering of GLT-1 at the astrocytic processes and the transport kinetics, increasing its uptake activity at low micromolar glutamate concentrations in a manner that was dependent on the effector kinase PAK1 and the actin cytoskeleton. Guanosine Diphosphate 69-72 Rac family small GTPase 1 Rattus norvegicus 7-11