Crossref journal-article
The Company of Biologists
Development (237)
Abstract

ABSTRACT The lin-2 gene is required for the induction of the Caenorhabditis elegans vulva. Vulval development is initiated by a signal from the anchor cell that is transduced by a receptor tyrosine kinase/Ras pathway. We show that lin-2 acts in the vulval precursor cell P6.p, downstream of lin-3 EGF and upstream of let-60 ras, to allow expression of the 1° cell fate. lin-2 encodes a protein of relative molecular mass 109,000 (LIN-2A) with regions of similar-ity to CaM kinase II and membrane-associated guanylate kinases. Mutant lin-2 transgenes designed to lack either protein kinase or guanylate kinase activity are functional, indicating that LIN-2A has a structural rather than an enzymatic role in vulval induction. Most or all identified membrane-associated guanylate kinases are components of cell junctions, including vertebrate tight junctions and arthropod septate junctions in epithelia. Thus, LIN-2A may be a component of the cell junctions of the epithelial vulval precursor cells that is required for signaling by the receptor tyrosine kinase LET-23. We propose that LIN-2A is required for the localization of one or more signal trans-duction proteins (such as LET-23) to either the basal membrane domain or the cell junctions, and that mislocal-ization of signal transduction proteins in lin-2 mutants interferes with vulval induction.

Bibliography

Hoskins, R., Hajnal, A. F., Harp, S. A., & Kim, S. K. (1996). The C. elegans vulval induction gene lin-2 encodes a member of the MAGUK family of cell junction proteins. Development, 122(1), 97–111.

Authors 4
  1. Roger Hoskins (first)
  2. Alex F. Hajnal (additional)
  3. Stacey A. Harp (additional)
  4. Stuart K. Kim (additional)
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Dates
Type When
Created 4 years, 4 months ago (April 25, 2021, 10:30 p.m.)
Deposited 6 months, 3 weeks ago (Feb. 13, 2025, 5:40 p.m.)
Indexed 2 months, 1 week ago (June 26, 2025, 2:05 p.m.)
Issued 29 years, 8 months ago (Jan. 1, 1996)
Published 29 years, 8 months ago (Jan. 1, 1996)
Published Online 29 years, 8 months ago (Jan. 1, 1996)
Published Print 29 years, 8 months ago (Jan. 1, 1996)
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@article{Hoskins_1996, title={The C. elegans vulval induction gene lin-2 encodes a member of the MAGUK family of cell junction proteins}, volume={122}, ISSN={1477-9129}, url={http://dx.doi.org/10.1242/dev.122.1.97}, DOI={10.1242/dev.122.1.97}, number={1}, journal={Development}, publisher={The Company of Biologists}, author={Hoskins, Roger and Hajnal, Alex F. and Harp, Stacey A. and Kim, Stuart K.}, year={1996}, month=jan, pages={97–111} }