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GAD1 - glutamate decarboxylase 1 (brain, 67kDa)
Entrez Gene Name: glutamate decarboxylase 1 (brain, 67kDa)
Synonyms: EP10, FLJ45882, GAD, GAD1, GAD25, GAD44, GAD67, Glutamic acid decarboxylase, SCP

Gene Summary

  • Human (2571): This gene encodes one of several forms of glutamic acid decarboxylase, identified as a major autoantigen in insulin-dependent diabetes. The enzyme encoded is responsible for catalyzing the production of gamma-aminobutyric acid from L-glutamic acid. A pathogenic role for this enzyme has been identified in the human pancreas since it has been identified as an autoantigen and an autoreactive T cell target in insulin-dependent diabetes. This gene may also play a role in the stiff man syndrome. Deficiency in this enzyme has been shown to lead to pyridoxine dependency with seizures. Alternative splicing of this gene results in two products, the predominant 67-kD form and a less-frequent 25-kD form. [provided by RefSeq]
  • Rat (24379): plays a role in the biosynthesis of gamma-aminobutyric acid [RGD]

Cell Regulation

Regulates:
  • GABA
  • GNRH1
  • Gad
View all 13 in IPA
Regulated by:
  • quinolinic acid
  • BDNF
  • 6-hydroxydopamine
View all 59 in IPA
Binds:
  • HAAO
  • BLNK
  • PICK1
View all 23 in IPA
Role in cell:
  • formation
  • activation
View all 4 in IPA
Disease:
  • schizophrenia
  • bipolar affective disorder
  • heat hyperalgesia
View all 9 in IPA

Biological Process

carboxylic acid metabolic process, glutamate decarboxylation to succinate, neurotransmitter biosynthetic process, protein-pyridoxal-5-phosphate linkage, synaptic transmission

Cellular Components

axon, cytoplasm, intracellular, mitochondrion, synapse, vesicle membrane

Literature References

  • 18606818Luo Y, Lathia J, Mughal M, Mattson MP. SDF1{alpha}/CXCR4 Signaling, via ERKs and the Transcription Factor Egr1, Induces Expression of a 67-kDa Form of Glutamic Acid Decarboxylase in Embryonic Hippocampal Neurons.J Biol Chem 2008 Sep 05;283(36):24789-800
  • 17652600Uchigashima M, Fukaya M, Watanabe M, Kamiya H. Evidence against GABA release from glutamatergic mossy fiber terminals in the developing hippocampus.J Neurosci 2007 Jul 25;27(30):8088-100
  • 17376983Long JE, Garel S, Alvarez-Dolado M, Yoshikawa K, Osumi N, Alvarez-Buylla A, Rubenstein JL. Dlx-dependent and -independent regulation of olfactory bulb interneuron differentiation.J Neurosci 2007 Mar 21;27(12):3230-43
  • View 699 categorized literature findings and their references in IPA

Molecular Functions

carboxy-lyase activity, catalytic activity, glutamate decarboxylase activity, lyase activity, protein binding, pyridoxal phosphate binding

Protein Domains

enzyme, Glutamate decarboxylase, protein binding

Subcellular Locations

cell body, cytoplasm, nerve ending, soluble fraction