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Resources » Paper

Herman MA et al. (2004) Front Biosci "Noncanonical Wnt signaling pathways in C. elegans converge on POP-1/TCF and control cell polarity."

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  • Comments on Herman MA et al. (2004) Front Biosci "Noncanonical Wnt signaling pathways in C. elegans converge on POP-1/TCF and control cell polarity." (0)

  • Overview

    PMID:
    14977564
    DOI:
    10.2741/1306
    Status:
    Publication type:
    Review
    WormBase ID:
    WBPaper00006419

    Herman MA, & Wu M (2004). Noncanonical Wnt signaling pathways in C. elegans converge on POP-1/TCF and control cell polarity. Front Biosci, 9, 1530-9. doi:10.2741/1306

    In the nematode Caenorhabditis elegans, a canonical Wnt signaling pathway controls a cell migration whereas noncanonical Wnt pathways control the polarities of individual cells. Despite the differences in the identities and interactions among canonical and noncanonical Wnt pathway components, as well as the processes they regulate, almost all C. elegans Wnt pathways involve the sole Tcf homolog, POP-1. Intriguingly, POP-1 is asymmetrically distributed between the daughters of an asymmetric cell division, with the anterior sister cell usually having a higher level of nuclear POP-1 than its posterior sister. At some divisions, asymmetric distribution of POP-1 is controlled by noncanonical Wnt signaling, but at others the asymmetry is generated independently. Recent experiments suggest that despite this elaborate anterior-posterior POP-1 asymmetry, the quantity of POP-1 protein may have less to do with the subsequent determination of fate than does the quality of the POP-1 protein in the cell. In this review, we will embark on a quest to understand Quality (1), at least from the standpoint of the effect POP/Tcf quality has on the control of cell polarity in C. elegans.


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