6533b830fe1ef96bd1297a38
RESEARCH PRODUCT
The Amino Acid Transporter JhI-21 Coevolves with Glutamate Receptors, Impacts NMJ Physiology, and Influences Locomotor Activity in Drosophila Larvae
Anna B. ZieglerAnna B. ZieglerAnna B. ZieglerNathan L. ClarkHrvoje AugustinHrvoje AugustinGérard ManiereGérard ManièreGérard ManièreYaël GrosjeanYael GrosjeanYael GrosjeanMégane M. SimonnetMégane M. SimonnetMégane M. SimonnetJoern R. SteinertDavid E. FeatherstoneMartine Berthelot-grosjeanMartine Berthelot-grosjeanMartine Berthelot-grosjeanFlore GeillonFlore GeillonFlore Geillonsubject
0301 basic medicinejuvenile-hormonemelanogasterAmino Acid Transport Systemsextracellular glutamateprotein-protein interactionsPhysiology[ SDV.BA ] Life Sciences [q-bio]/Animal biologySynaptic Transmissionin-vivo0302 clinical medicinePostsynaptic potentialDrosophila Proteinsgenesglial xctMotor NeuronsAnimal biologyMultidisciplinary[SDV.BA]Life Sciences [q-bio]/Animal biologyGlutamate receptorBiological Evolutiondrosophilemedicine.anatomical_structureReceptors GlutamateLarvaExcitatory postsynaptic potentialDrosophila[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]Drosophila ProteinSignal Transductionevolutionary rate covariationNeuromuscular JunctionPresynaptic TerminalsNeurotransmissionBiologyMotor ActivityArticlesynaptic vesicle03 medical and health sciencesGlutamatergicneuromuscular-junctionBiologie animalemedicineAnimalsAmino acid transporterevolutionary rate covariation;protein-protein interactions;juvenile-hormone;neuromuscular-junction;synaptic vesicle;in-vivo;extracellular glutamate;glial xct;melanogaster;genesfungiNeurosciencesExcitatory Postsynaptic PotentialsMotor neuron030104 developmental biology[ SDV.NEU ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]Neurons and CognitionMutation030217 neurology & neurosurgerydescription
AbstractChanges in synaptic physiology underlie neuronal network plasticity and behavioral phenomena, which are adjusted during development. The Drosophila larval glutamatergic neuromuscular junction (NMJ) represents a powerful synaptic model to investigate factors impacting these processes. Amino acids such as glutamate have been shown to regulate Drosophila NMJ physiology by modulating the clustering of postsynaptic glutamate receptors and thereby regulating the strength of signal transmission from the motor neuron to the muscle cell. To identify amino acid transporters impacting glutmatergic signal transmission, we used Evolutionary Rate Covariation (ERC), a recently developed bioinformatic tool. Our screen identified ten proteins co-evolving with NMJ glutamate receptors. We selected one candidate transporter, the SLC7 (Solute Carrier) transporter family member JhI-21 (Juvenile hormone Inducible-21), which is expressed in Drosophila larval motor neurons. We show that JhI-21 suppresses postsynaptic muscle glutamate receptor abundance and that JhI-21 expression in motor neurons regulates larval crawling behavior in a developmental stage-specific manner.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-07-24 | Scientific Reports |