Neurobeachin regulates neurotransmitter receptor trafficking to synapses

Autor: Nancy E. Cooke, SangYong Jung, Manfred W. Kilimann, Ramya Nair, Juliane Lauks, Nils Brose, Heidi de Wit, Jeong-Seop Rhee, Matthijs Verhage
Přispěvatelé: Human genetics, NCA - Brain mechanisms in health and disease, Functional Genomics, Neuroscience Campus Amsterdam - Brain Mechanisms in Health & Disease
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: The Journal of Cell Biology
Journal of Cell Biology, 200(1), 61-80. Rockefeller University Press
The Journal of Cell Biology; Vol 200
Nair, R, Lauks, J, Jung, S, Cooke, N E, de Wit, H, Brose, N, Kilimann, M W, Verhage, M & Rhee, J 2013, ' Neurobeachin regulates neurotransmitter receptor trafficking to synapses ', Journal of Cell Biology, vol. 200, no. 1, pp. 61-80 . https://doi.org/10.1083/jcb.201207113
ISSN: 1540-8140
0021-9525
DOI: 10.1083/jcb.201207113
Popis: Neurobeachin regulates synaptic transmission by targeting neurotransmitter receptors to synapses under basal conditions.
The surface density of neurotransmitter receptors at synapses is a key determinant of synaptic efficacy. Synaptic receptor accumulation is regulated by the transport, postsynaptic anchoring, and turnover of receptors, involving multiple trafficking, sorting, motor, and scaffold proteins. We found that neurons lacking the BEACH (beige-Chediak/Higashi) domain protein Neurobeachin (Nbea) had strongly reduced synaptic responses caused by a reduction in surface levels of glutamate and GABAA receptors. In the absence of Nbea, immature AMPA receptors accumulated early in the biosynthetic pathway, and mature N-methyl-d-aspartate, kainate, and GABAA receptors did not reach the synapse, whereas maturation and surface expression of other membrane proteins, synapse formation, and presynaptic function were unaffected. These data show that Nbea regulates synaptic transmission under basal conditions by targeting neurotransmitter receptors to synapses.
Databáze: OpenAIRE