establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localization cell communication establishment of localizationestablishment of localization cell communicationcell communication protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein binding transmembrane transporter activity protein bindingprotein binding transmembrane transporter activitytransmembrane transporter activity cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cell membrane synapse organelle cell junction cellcell membranemembrane synapsesynapse organelleorganelle cell junctioncell junction