Literature DB >> 11274062

Inhibition of touch cell fate by egl-44 and egl-46 in C. elegans.

J Wu1, A Duggan, M Chalfie.   

Abstract

In wild-type Caenorhabditis elegans, six cells develop as receptors for gentle touch. In egl-44 and egl-46 mutants, two other neurons, the FLP cells, express touch receptor-like features. egl-44 and egl-46 also affect the differentiation of other neurons including the HSN neurons, two cells needed for egg laying. egl-44 encodes a member of the transcription enhancer factor family. The product of the egl-46 gene, two Drosophila proteins, and two proteins in human and mice define a new family of zinc finger proteins. Both egl-44 and egl-46 are expressed in FLP and HSN neurons (and other cells); expression of egl-46 is dependent on egl-44 in the FLP cells but not in the HSN cells. Wild-type touch cells express egl-46 but not egl-44. Moreover, ectopic expression of egl-44 in the touch cells prevents touch cell differentiation in an egl-46-dependent manner. The sequences of these genes and their nuclear location as seen with GFP fusions indicate that they repress transcription of touch cell characteristics in the FLP cells.

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Year:  2001        PMID： 11274062      PMCID： PMC312646          DOI： 10.1101/gad.857401

Source DB:  PubMed          Journal:  Genes Dev        ISSN： 0890-9369            Impact factor:   11.361


  61 in total

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  38 in total

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