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The oligodendrocyte-myelin glycoprotein (OMgp) is a 110-kDa glycosylphosphatidylinositol-linked protein that was initially identified as a myelin-specific protein but whose precise function remains unknown. In this study, immunohistochemistry, western blots, in situ hybridization, and northern blots were used to determine the distribution of OMgp in the(More)
We describe the effects of a recessive mutation on visual behavior, the electroretinogram (ERG), and photoreceptor structure in zebrafish. At 6 d post-fertilization (dpf), no optokinetic reflex could be elicited in no optokinetic response c (nrc) mutant animals under any test condition. The animals exhibited ERG responses at 5-7 dpf that were markedly(More)
Light and transmission electron microscopy were used to characterize the ultrastructural features of the pineal glands of wild-type and two mutant zebrafish strains that have retinal defects. Particular attention was given to the pineal photoreceptors. Photoreceptors in the pineal gland appear quite similar to retinal cone photoreceptors, having many of the(More)
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