Gene Set: BIOCARTA_GABA_PATHWAY

Standard name BIOCARTA_GABA_PATHWAY
Systematic name M477
Brief description Gamma-aminobutyric Acid Receptor Life Cycle
Full description or abstract Gamma-amino butyric acid (GABA) is an inhibitory neurotransmitter that acts at synapses through binding to ligand-gated ion channels, the GABA receptors. Clustering of the GABA-A receptor chloride channel alters receptor pharmacology on the cell surface and reduced clustering of the GABA receptor is associated with anxiety. GABA-A interacts with several proteins that modulate its clustering, endocytosis, and recycling or degradation. Plic-1 is a ubiquitin-like protein that binds to GABA-A receptors and causes them to accumulate at inhibitory synapses. Gephyrin interacts with the cytoplasmic domain of GABA-A, and with microtubules, bringing receptors together in plasma microdomains. Curiously, Gephyrin appears to be a bifunctional protein, with a domain involved in molybdenum metabolism. Another protein interacting with the GABA-A receptor is GABARAP, a microtubule-associated protein. Anchoring of the GABA-A receptor to GABARAP helps to cluster the receptor at the synaptic termini and to mediate fast synaptic transmission. GABARAP may mediate interaction of gephyrin with the GABA-A receptor and gephyrin may stabilize clusters by forming multimeric structures. GABARAP and gephyrin may play more of a role in receptor sorting and transport to the cell surface than in anchoring to the cytoplasm, since at inhibitory synapses GABARAP appears to associated with transport vesicles rather than the cell surface. The association of GABARAP with NSF (N-ethyl maleimide sensitive factor), a protein involved in intracellular vesicle transport, supports this hypothesis.
Collection C2: curated gene sets
      CP: canonical pathways
            CP:BIOCARTA: BioCarta gene sets
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External links http://www.biocarta.com/pathfiles/h_gabaPathway.asp
http://www.biocarta.com/pathfiles/PathwayProteinList.asp?showPFID=445
Organism Homo sapiens
Contributed by BioCarta
Source platform EntrezGeneIds
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Compute overlaps C1: positional gene sets
C2: curated gene sets
      CGP: chemical and genetic perturbations
      CP: canonical pathways
            CP:BIOCARTA: BioCarta gene sets
            CP:KEGG: KEGG gene sets
            CP:REACTOME: Reactome gene sets
C3: motif gene sets
      MIR: microRNA targets
      TFT: transcription factor targets
C4: computational gene sets
      CGN: cancer gene neighborhoods
      CM: cancer modules
C5: GO gene sets
      BP: GO biological process
      CC: GO cellular component
      MF: GO molecular function
Compendia expression profiles Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
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