UNC-55, an Orphan Nuclear Hormone Receptor, Orchestrates Synaptic Specificity among Two Classes of Motor Neurons inCaenorhabditis elegans

Autor: W. W. Walthall, Zhou Hm
Rok vydání: 1998
Předmět:
Zdroj: The Journal of Neuroscience. 18:10438-10444
ISSN: 1529-2401
0270-6474
DOI: 10.1523/jneurosci.18-24-10438.1998
Popis: Loss of UNC-55 function in the nematodeCaenorhabditis eleganscauses one motor neuron class, the ventral D (VD) motor neurons, to adopt the synaptic pattern of another motor neuron class, the dorsal D (DD) motor neurons. Here we show thatunc-55encodes a member of the nuclear hormone receptor gene family that is similar to the vertebrate chicken ovalbumin upstream promoter transcription factors. Although the VD and DD motor neuron classes arise from different lineages at different developmental stages, they share a number of structural and functional features that appear to be the product of identical genetic programs. UNC-55 is expressed in the VD but not the DD motor neurons to modify this genetic program and to create the synaptic pattern that distinguishes the two motor neuron classes from one another.
Databáze: OpenAIRE