Cover: Lateral confocal micrograph of segmentally arranged neuromuscular synapse formation in a 48 hour post-fertilisation zebrafish embryo (red = znp1, spinal motor neurone axon marker; green = FITC-α-bungarotoxin). The zebrafish embryo has been used to examine the role of the spastic paraplegia gene product Spastin in axon outgrowth. See Wood et al., pp. 2763-2771, this issue, for further information.
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