Fig. 6From: Serotonin improves glucose metabolism by Serotonylation of the small GTPase Rab4 in L6 skeletal muscle cells Analysis of Rab4 serotonylation using radioactive 5-HT. L6 cells were incubated in the presence of [3H]-labelled 5-HT at 5 µCi. After cell lysis, immunoprecipitation using a Rab4-antibody followed by SDS-PAGE was performed. M, radiolabelled molecular weight markerBack to article page