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Molecular dissection of the photoreceptor ribbon synapse [PDF]
Journal of Cell Biology, 2005 The ribbon complex of retinal photoreceptor synapses represents a specialization of the cytomatrix at the active zone (CAZ) present at conventional synapses. In mice deficient for the CAZ protein Bassoon, ribbons are not anchored to the presynaptic membrane but float freely in the cytoplasm.
Michael M Kessels +2 more
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Distribution of actin in cone photoreceptor synapses
Histochemistry, 1993The invaginated photoreceptor terminal harbours a great number of postsynaptic dendrites that contact the photoreceptor terminal at morphologically distinct synapses. In this paper we studied the subcellular distribution of actin in cone photoreceptor synapses of light-adapted goldfish and guppy retinas and its relation to ribbon and spinule synapses ...
F, Schmitz, D, Drenckhahn
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Cholinergic features of photoreceptor synapses in Hermissenda
Journal of Neurophysiology, 19791. A number of observations, as listed below, suggested a cholinergic basis for inhibitory interactions between photoreceptors of the eye in the nudibranch mollusk Hermissenda crassicornis. 2. The isolated eyes synthesized and accumulated acetylcholine but not other putative neurotransmitter substances.
E, Heldman +3 more
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Chemical synapses between turtle photoreceptors
Brain Research, 1984Rod photoreceptors of the snapping turtle retina wer Golgi impregnated and studied in the electron microscope. Telodendria arising from the synaptic bases ended at rods and cones as lateral or central elements of the ribbon synaptic complex, thus providing clear evidence of chemical synapses between turtle photoreceptors.
A P, Mariani, A, Lasansky
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Calcium Channels at the Photoreceptor Synapse
2002Presynaptic Ca2+ channels mediate early stages of visual information processing in photoreceptors by facilitating the release of neurotransmitter and by receiving modulatory input that alters transmission. Two types of L-type Ca2+ channels, composed of alpha1F and alpha1D subunits and having similar biophysical andpharmacological properties, appear to ...
Steven, Barnes, Melanie E M, Kelly
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The formation of photoreceptor synapses in the retina of larvalXenopus
Journal of Neurocytology, 1978The first appearance and early development of synapses between photoreceptors, bipolar cells and horizontal cells were studied in the retina of larval Xenopus, between stages 37/8 and 46. Synapse morphology was reconstructed from examination of serial sections.
F, Chen, P, Witkovsky
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Properties of intact photoreceptor cells lacking synapses
Journal of Experimental Zoology, 1968AbstractSurgically undamaged photoreceptor cells that have no connections with the central nervous system were obtained by transplanting the eye imaginal disc of third instar housefly larvae (Musca domestica) into the abdomens of host larvae and waiting for development of the host flies.
D M, Eichenbaum, T H, Goldsmith
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Chapter 8 The photoreceptor output synapse
Progress in Retinal and Eye Research, 1990In this article I will review recent work on the photoreceptor output synapse, focussing on the ways in which this system differs from the much better understood neuromuscular junction, and showing how the properties of this synapse contribute to the early processing of visual ...
David Attwell
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The dynamics of signaling at the histaminergic photoreceptor synapse of arthropods
Progress in Neurobiology, 2007Histamine, a ubiquitous aminergic messenger throughout the body, also serves as a neurotransmitter in both vertebrates and invertebrates. In particular, the photoreceptors of adult arthropods use histamine, modulating its release to signal increases and decreases in light intensity.
Ann E, Stuart +2 more
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