Abstract
Glutamate, GABA and glycine, the major neurotransmitters in CNS, are taken up and stored in synaptic vesicles by a Mg2+-ATP dependent process. The main driving force for vesicular glutamate uptake is the membrane potential, whereas both the membrane potential and the proton gradient contribute to the uptake of GABA and glycine. Glutamate is taken up by a specific transporter with no affinity for aspartate. Evans blue and related dyes are competitive inhibitors of the uptake of glutamate. GABA, β-alanine, and glycine are taken up by the same family of transporter molecules. Aspartate, taurine, and proline are not taken up by any synaptic vesicle preparations. It is suggested that vesicular uptake and release are characteristics that identify these amino acids as neurotransmitters. We also discuss that “quanta” in the brain are not necessarily related the content of neurotransmitter in the synaptic vesicles, but rather to postsynaptic events.
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Krnjevic, K. 1970. Glutamate and γ-aminobutyric acid in brain. Nature (Lond.) 228:119–124.
Aprison, M. H., Shank, R. P., and Davidoff, R. A. 1969. A comparison of the concentration of glycine, a transmitter suspect, in different areas of the brain and spinal cord in seven different vertebrates. Comp. Biochem. Physiol. 28:1345–1355.
Fonnum, F. 1984. Glutamate: A neurotransmitter in mammalian brain. J. Neurochem. 42:1–11.
Fonnum, F. 1984. Biochemistry, anatomy and pharmacology of GABA neurons. Pages 173–182,in Meltzer, H. Y. (ed.) Psycopharmacology: The third generation of progress. Raven Press, New York.
Castillo, J. del, and Katz, B. 1956. Biophysical aspects of neuromuscular transmission. Prog. Biophys. Chem. 6:121–170.
Fatt, P., and Katz, B. 1952. Spontaneous subthreshold activity at motor endings. J. Physiol. (Lond.) 117:109–128.
De Robertis, E. D. P. 1964. Histophysiology of synapses and neurosecretion, Pergamon. New York.
De Robertis, E. D. P., Rodriguez de Lores Arnaiz, G., Salganicoff, L., Pellegrino de Iraldi, A., and Zieher, L. M. 1963. Isolation of synaptic vesicles and structural organization of the acetylcholine system within brain nerve endings. J. Neurochem. 10:225–235.
Whittaker, V. P., Michaelson, I. A., and Kirkland, R. J. A. 1964. The separation of synaptic vesicles from nerve-ending particles (“synaptosomes”). Biochem. J. 90:293–303.
Mangan, J. L., and Whittaker, V. P. 1966. The distribution of free amino acids in subcellular fractionations of guinea-pig brain. Biochem. J. 98:128–137.
Fonnum, F. 1967. The compartmentation of choline acetyltransferase within the synaptosome. Biochem. J. 130:262–270.
Fonnum, F. (ed.) 1978. NATO Advanced Study Institutes Series, Serie A, Life Sciences, Vol 16: Amino Acids as Chemical Transmitters, Plenum Press, New York.
Anderson, D. C., King, S. C. and Parsons, S. M. 1983. Pharmacological characterization of acetylcholine transport system in purifiedTorpedo electric organ synaptic vesicles. Molec. Pharmacol. 24:48–54.
Paulsen, O., and Heggelund P. 1994. The quantal size at retinogeniculate synapse determined from spontaneous and evoked EPSCs in guinea-pig thalamic slices. J. Physiol. 480:505–511.
Edwards, F. A., Konnerti, A., and Sakman B. 1990. Quantal analysis of inhibitory synaptic transmission in the dentate gyros rat hippocampal slices: a patch-clamp study. J. Physiol. 430:213–219.
Klein, R., Lagercrantz, H., and Zimmermann, H. 1982. Neurotransmitter Vesicles. Pages 1–375, Academic Press, New York.
Disbrow, J. K., Gershten, M. J., and Ruth, J. A. 1982. Uptake ofl-[3H]glutamic acid by crude and purified synaptic vesicles from rat brain. Biochem. Biophys. Res. Commun. 108:1221–1227.
Naito, S., and Ueda, T. 1985. Characterization of glutamate uptake into synaptic vesicles. J. Neurochem. 44:99–109.
Fykse, E. M., and Fonnum, F. 1988. Uptake of γ-aminobutyric acid by a synaptic vesicle fraction isolated from rat brain. J. Neurochem. 50:1237–1242.
Fykse, E. M., Christensen, H., and Fonnum, F. 1989. Comparison of the properties of γ-aminobutyric acid andl-glutamate uptake into synaptic vesicles isolated from rat brain. J. Neurochem. 52: 946–951.
Hell, J. W., Maycox, P. R., Stadler, H., and Jahn, R. 1988. Uptake of GABA by rat brain synaptic vesicles isolated by a new procedure, EMBO J. 7:3023–3029.
Maycox, P. R., Deckwerth, T., Hell, J. W., and Jahn, R. 1988. Glutamate uptake by brain synaptic vesicles. J. Biol. Chem. 263: 15423–15428.
Kish, P. E., Fischer-Bovenkerk, C., and Ueda, T. 1989. Active transport of γ-aminobutyric acid and glycine into synaptic vesicles. Proc. Natl. Acad. Sci. USA 86:3877–3881.
Christensen, H., Fykse, E. M., and Fonnum, F. 1990. Uptake of glycine into synaptic vesicles isolated from rat spinal cord. J. Neurochem. 54:1142–1147.
Nelson, N. 1991. Structure and pharmacology of the proton ATPases. TIPS 12:71–75.
Fykse, E. M., and Fonnum, F. 1991. Transport of γ-aminobutyrate andl-glutamate into synaptic vesicles: Effect of different inhibitors on the vesicular uptake of neurotransmitters and on the Mg2+-ATPase. Biochem. J. 276:363–367.
Roseth, S., Fykse, E. M., and Fonnum, F. 1995. Uptake ofl-glutamate into rat brain synaptic vesicles: Effect of inhibitors that binds specifically to the glutamate transporter. J. Neurochem. 65: 96–103.
Maycox, P.R., Deckwert, T., and Jahn, R. 1990. Bacteriorhodopsin drives the glutamate transporter of synaptic vesicles. EMBO J. 9:1465–1469.
Hartinger, J., and Jahn, R. 1993. An anion binding site that regulates the glutamate transporter of synaptic vesicles. J. Biol. Chem. 268:23122–23127.
Moriyama, M., and Yamamoto, A. 1995. Vesicularl-glutamate transporter in microvesicles from bovine pineal glands. J. Biol. Chem. 270:22314–22320.
Moriyama, Y., Maeda, M., and Futai, M. 1990. Energy coupling ofl-glutamate transport and vacuolar H+-ATPase in brain synaptic vesicles. J. Biochem. 108:689–693.
Cidon, S., and Sihra, T. 1989. Characterization of a H+-ATPase in rat brain synaptic vesicles. J. Biol. Chem. 264:8281–8288.
Shioi, J., Naito, S., and Ueda, T. 1989. Glutamate uptake into synaptic vesicles of bovine cerebral cortex and electrical potential difference of proton across the membrane. Biochem. J. 258:499–504.
Tabb, J. S., Kish, P. E., Van Dyke, R., and Ueda, T. 1992. Glutamate transport in synaptic vesicles. Roles of membrane potential, pH gradient, and intravesicular pH. J. Biol. Chem. 267: 15412–15418.
Hell, J. W., Maycox, P. R., and Jahn, R. 1990. Energy dependence and functional reconstitution of the γ-aminobutyric acid carrier from synaptic vesicles. J. Biol. Chem. 265:2111–2117.
Njus, D., Kelley, P. M., and Harnadek, G. J. 1986. Bioenergetics of secretory vesicles. Biochim. Biophys. Acta, 853:237–266.
Fykse, E. M., and Fonnum, F. 1989. Regional distribution of γ-aminobutyrate andl-glutamate uptake into synaptic vesicles isolated from rat brain. Neurosci. Lett. 99:300–304.
Christensen, H., Fykse, E. M., and Fonnum, F. 1991. Inhibition of γ-aminobutyrate and glycine uptake into synaptic vesicles. Eur. J. Phar.-Mo. 207:73–79.
Dunlop, J., Fear, A., and Griffiths, R. 1991. Glutamate uptake into synaptic vesicles—inhibition by sulphur amino acids. Neuro-Report 2:377–379.
Fykse, E. M., Iversen, E. G., and Fonnum, F. 1992. Inhibition ofl-glutamate uptake into synaptic vesicles. Neurosci. Lett. 135: 125–128.
Logan, W. J., and Snyder, S. H. 1972. High affinity uptake systems for glycine, glutamate and aspartate in synaptosomes of rat central nervous tissue. Brain Res. 42:413–431.
Winter, H. C., and Ueda, T. 1993. Glutamate uptake system in the presynaptic vesicle: Glutamic acid analogs as inhibitors and alternates substrates. Neurochem. Res. 18:79–85.
Burger, P. M., Hell, J., Mehl, E., Krasel, C., Lottspeich, F., and Jahn, R. 1991. GABA and glycine in synaptic vesicles: Storage and transport characteristics. Neuron 7:287–293.
Christensen, H., and Fonnum, F. 1991. Uptake of glycine, GABA and glutamate by synaptic vesicles isolated from different regions of rat CNS. Neurosci. Lett. 129:217–220.
Johnston, G. A. R., and Iversen, L. L. 1971. Glycine uptake in rat central nervous system slices and homogenates: Evidence for different uptake systems in spinal cord and cerebral cortex. J. Neurochem. 18:1951–1961.
Johnson, J. W. and Ascher, P. 1987. Glycine potentiates the NMDA response in cultured mouse brain neurons. Nature, 325; 529–531.
Ottersen, O. P., Storm-Mathisen, J., and Somogyi, P. 1988. Colocalization of glycine-like and GABA-like immunoreactivities in Golgi cell terminals in the rat cerebellum: A postembedding light and electromicroscopic study. Brain Res. 450:342–353.
Ottersen, O. P., Storm-Mathisen, J., and Laake, J. 1990. Cellular and subcellular localization of glycine studied by quantitative electron microscopic immunocytochemistry. Pages 303–328. in Ottersen, O. P., and Storm-Mathisen, J. (eds.) Glycine Neurotransmission. Wiley, Chichester.
Tabb, J. S., and Ueda, T. 1991. Phylogenetic studies on the synaptic vesicle glutamate transport. J. Neurosci. 11:1822–1828.
Roseth, S., and Fonnum, F. 1995. A study of the uptake of glutamate, γ-aminobutyric acid (GABA), glycine and β-alanine in synaptic brain vesicles from fish and avians. Neurosci. Lett. 183: 62–66.
Kish, P. E., Kim, S. Y., and Ueda, T. 1989b. Ontogeny of glutamate accumulating activity in rat brain synaptic vesicles. Neurosci. Lett. 97:185–190.
Christensen, H., and Fonnum, F. 1991. The ontogeny of the uptake systems for glycine, GABA, and glutamate in synaptic vesicles isolated from rat spinal cord-medulla. Dev. Brain Res. 64:155–159.
Christensen, H., and Fonnum, F. 1992. The ontogeny of the uptake systems for glutamate. GABA, and glycine in synaptic vesicles isolated from rat brain. Neurochem. Res. 17:457–462.
Roseth, S., and Fonnum, F. 1996. Glutamate uptake into synaptic vesicles. Inhibition by dyes. (submitted).
Liu, Y., Peter, D., Roghani, A., Schuldiner, S., Privé, G. G., Eisenberg, D., Brecha, N., and Edwards, R. H. 1992. A cDNA that suppresses MPP+ toxicity encodes a vesicular amine transporter. Cell 70:539–551.
Erickson, J. D., Eiden, L. E., and Hoffman, B. 1992. Expression cloning of a reserpine-sensitive vesicular monoamine transporter. Proc. Natl. Acad. Sci. 89:10993–10997.
Usdin, T. B., Eide, L. E., Bonner, T. I., and Erickson, J. D. 1995. Molecular biology of the vesicular ACh transporter. TINS 18:218–224.
Aprison, M. H., and Werman, R. 1968. A combined neurochemical and neurophysiological approach to the identification of central nervous system transmitters. Neuroscience Res. 1:143–174.
Nadler, J. V., White, W. F., Vaea, K. W., Perry, B. W., and Cotman, C. W. 1978. Biochemical correlates of transmission mediated by glutamate and aspartate. J. Neurochem. 51:147–155.
Nagelhus, E. A., Lehman, A., and Ottersen, O. P. 1993. Neuronal glial exchange of taurine during hypoosmotic stress. Neurosci. 54: 615–631.
Sandberg, M., and Jacobson, I. 1981. β-Alanine, a possible neurotransmitter in the visual system. J. Neurochem. 37:1353–1356.
Fonnum, F. 1991. Neurochemical studies on glutamate-mediated neurotransmission. Pages 15–25,in Meldrum, B. S., Moroni, F., Simon, R. P., and Woods, J. H. (eds.) Excitatory Amino Acids, Fidia Research Foundation Symposium Series, Vol. 5, Raven Press, New York.
Gundersen, V., Shupliakov, O., Brodin, L., Ottersen, O. P., and Storm-Mathisen, J. 1995. Quantitation of excitatory amino acid uptake at intact glutamatergic synapses by immunocytochemistry of exogenousd-aspartate. J. Neurosci. 15:4417–4428.
Fonnum, F., Storm-Mathisen, J., and Walberg, F. 1970. Glutamate decarboxylase in inhibitory neurons. A study of the enzyme in Purkinje cell axons and boutons in the cat. Brain Res. 20:259–275.
Fonnum, F., and Walberg, F. 1973. An estimation of the concentration of γ-aminobutyric acid and glutamate decarboxylase in the inhibitory Purkinje axon terminals of the cat. Brain Res. 54:115–127.
Südhof, T. C., DeCamilli, P., Niemann, H., and Jahn, R. 1993. Membrane fusion machinery: Insights from synaptic proteins. Cell 75:1–4.
Rosenthal, L., and Meldolesi, J. 1989. α-Latrotoxin and related toxins. Pharmac. Ther. 42:115–134.
Fonnum, F. 1995. Inhibition of vesicular uptake decreases Ca2+ dependent release of amino acid transmitters. J. Neurochem. 65: S50D.
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Special issue dedicated to Dr. Herman Bachelard.
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Fykse, E.M., Fonnum, F. Amino acid neurotransmission: Dynamics of vesicular uptake. Neurochem Res 21, 1053–1060 (1996). https://doi.org/10.1007/BF02532415
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DOI: https://doi.org/10.1007/BF02532415