Glutamate receptors of Drosophila melanogaster. Primary structure of a putative NMDA receptor protein expressed in the head of the adult fly

FEBS Lett. 1993 Jun 14;324(2):171-7. doi: 10.1016/0014-5793(93)81387-f.


The NMDA subtype of ionotropic glutamate receptors has been implicated in the activity-dependent modification of synaptic efficacy in the mammalian brain. Here we describe a cDNA isolated from Drosophila melanogaster which encodes a putative invertebrate NMDA receptor protein (DNMDAR-I). The deduced amino acid sequence of DNMDAR-I displays 46% amino acid identity to the rat NMDAR1 polypeptide and shows significant homology (16-23%) to other vertebrate and invertebrate glutamate receptor proteins. The DNMDAR-I gene maps to position 83AB of chromosome 3R and is highly expressed in the head of adult flies. Our data indicate that the NMDA subtype of glutamate receptors evolved early during phylogeny and suggest the existence of activity-dependent synaptic plasticity in the insect brain.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Chromosome Mapping
  • Chromosomes / ultrastructure
  • Cloning, Molecular
  • Drosophila melanogaster / chemistry
  • Drosophila melanogaster / genetics*
  • Gene Expression Regulation
  • Genes, Insect / genetics
  • Head / physiology
  • In Situ Hybridization
  • Molecular Sequence Data
  • N-Methylaspartate / metabolism*
  • RNA, Messenger / genetics
  • Receptors, Glutamate / genetics*
  • Sequence Analysis
  • Sequence Homology, Amino Acid
  • Tissue Distribution


  • RNA, Messenger
  • Receptors, Glutamate
  • N-Methylaspartate

Associated data

  • GENBANK/X71790