Abstract
[3H]Strychnine binds to synaptic-membrane fractions of the spinal cord in a selective fashion, indicating an interaction with postsynaptic glycine receptors. Displacement of strychnine by glycine and other amino acids parallels their glycine-like neurophysiologic activity. The regional localization of strychnine binding in the central nervous system correlates closely with endogenous glycine concentrations. In subcellular fractionation experiments, strychnine binding is most enhanced in synaptic-membrane fractions. Strychnine binding is saturable, with affinity constants for glycine and strychnine of 10 and 0.03 μM, respectively.
Full text
PDF




Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Aprison M. H., Shank R. P., Davidoff R. A. 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. 1969 Mar;28(3):1345–1355. doi: 10.1016/0010-406x(69)90571-4. [DOI] [PubMed] [Google Scholar]
- Aprison M. H., Werman R. The distribution of glycine in cat spinal cord and roots. Life Sci. 1965 Nov;4(21):2075–2083. doi: 10.1016/0024-3205(65)90325-5. [DOI] [PubMed] [Google Scholar]
- Arregui A., Logan W. J., Bennett J. P., Snyder S. H. Specific glycine--accumulating synaptosomes in the spinal cord of rats. Proc Natl Acad Sci U S A. 1972 Nov;69(11):3485–3489. doi: 10.1073/pnas.69.11.3485. [DOI] [PMC free article] [PubMed] [Google Scholar]
- BRADLEY K., EASTON D. M., ECCLES J. C. An investigation of primary or direct inhibition. J Physiol. 1953 Dec 29;122(3):474–488. doi: 10.1113/jphysiol.1953.sp005015. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cuatrecasas P. Insulin--receptor interactions in adipose tissue cells: direct measurement and properties. Proc Natl Acad Sci U S A. 1971 Jun;68(6):1264–1268. doi: 10.1073/pnas.68.6.1264. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Curtis D. R., Duggan A. W., Johnston G. A. The specificity of strychnine as a glycine antagonist in the mammalian spinal cord. Exp Brain Res. 1971 Jun 29;12(5):547–565. doi: 10.1007/BF00234248. [DOI] [PubMed] [Google Scholar]
- Curtis D. R., Hösli L., Johnston G. A. A pharmacological study of the depression of spinal neurones by glycine and related amino acids. Exp Brain Res. 1968;6(1):1–18. doi: 10.1007/BF00235443. [DOI] [PubMed] [Google Scholar]
- Davidoff R. A., Graham L. T., Jr, Shank R. P., Werman R., Aprison M. H. Changes in amino acid concentrations associated with loss of spinal interneurons. J Neurochem. 1967 Oct;14(10):1025–1031. doi: 10.1111/j.1471-4159.1967.tb09513.x. [DOI] [PubMed] [Google Scholar]
- Friz C. T. The nitrogen content of the water soluble proteins of three species of the free-living amoebae. Life Sci. 1968 Jun 15;7(12):583–585. doi: 10.1016/0024-3205(68)90078-7. [DOI] [PubMed] [Google Scholar]
- Galindo A., Krnjević K., Schwartz S. Micro-iontophoretic studies on neurones in the cuneate nucleus. J Physiol. 1967 Sep;192(2):359–377. doi: 10.1113/jphysiol.1967.sp008305. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Glowinski J., Iversen L. L. Regional studies of catecholamines in the rat brain. I. The disposition of [3H]norepinephrine, [3H]dopamine and [3H]dopa in various regions of the brain. J Neurochem. 1966 Aug;13(8):655–669. doi: 10.1111/j.1471-4159.1966.tb09873.x. [DOI] [PubMed] [Google Scholar]
- Graham L. T., Jr, Shank R. P., Werman R., Aprison M. H. Distribution of some synaptic transmitter suspects in cat spinal cord: glutamic acid, aspartic acid, gamma-aminobutyric acid, glycine and glutamine. J Neurochem. 1967 Apr;14(4):465–472. doi: 10.1111/j.1471-4159.1967.tb09545.x. [DOI] [PubMed] [Google Scholar]
- Hökfelt T., Ljungdahl A. Light and electron microscopic autoradiography on spinal cord slices after incubation with labeled glycine. Brain Res. 1971 Sep 10;32(1):189–194. doi: 10.1016/0006-8993(71)90163-6. [DOI] [PubMed] [Google Scholar]
- Johnston G. A., Iversen L. L. Glycine uptake in rat central nervous system slices and homogenates: evidence for different uptake systems in spinal cord and cerebral cortex. J Neurochem. 1971 Oct;18(10):1951–1961. doi: 10.1111/j.1471-4159.1971.tb09601.x. [DOI] [PubMed] [Google Scholar]
- Kelly J. S., Krnjević K. The action of glycine on cortical neurones. Exp Brain Res. 1969;9(2):155–163. doi: 10.1007/BF00238328. [DOI] [PubMed] [Google Scholar]
- Krnjević K., Randić M., Straughan D. W. Pharmacology of cortical inhibition. J Physiol. 1966 May;184(1):78–105. doi: 10.1113/jphysiol.1966.sp007904. [DOI] [PMC free article] [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- Logan W. J., Snyder S. H. High affinity uptake systems for glycine, glutamic and aspaspartic acids in synaptosomes of rat central nervous tissues. Brain Res. 1972 Jul 20;42(2):413–431. doi: 10.1016/0006-8993(72)90540-9. [DOI] [PubMed] [Google Scholar]
- Logan W. J., Snyder S. H. Unique high affinity uptake systems for glycine, glutamic and aspartic acids in central nervous tissue of the rat. Nature. 1971 Dec 3;234(5327):297–299. doi: 10.1038/234297b0. [DOI] [PubMed] [Google Scholar]
- Matus A. I., Dennison M. E. Autoradiographic localisation of tritiated glycine at 'flat-vesicle' synapses in spinal cord. Brain Res. 1971 Sep 10;32(1):195–197. doi: 10.1016/0006-8993(71)90164-8. [DOI] [PubMed] [Google Scholar]
- Owen A. G., Sherrington C. S. Observations on strychnine reversal. J Physiol. 1911 Nov 20;43(3-4):232–241. doi: 10.1113/jphysiol.1911.sp001469. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Werman R., Davidoff R. A., Aprison M. H. Inhibitory of glycine on spinal neurons in the cat. J Neurophysiol. 1968 Jan;31(1):81–95. doi: 10.1152/jn.1968.31.1.81. [DOI] [PubMed] [Google Scholar]
