Multiple functions of let-23, a Caenorhabditis elegans receptor tyrosine kinase gene required for vulval induction.
Multiple functions of let-23, a Caenorhabditis elegans receptor tyrosine kinase gene required for vulval induction.
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let-23(一种外阴诱导所需的秀丽隐杆线虫受体酪氨酸激酶基因)的多种功能。
DOI:
10.1093/genetics/128.2.251
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发表时间:
1991
期刊:
影响因子:
3.3
通讯作者:
Sternberg,PW
中科院分区:
文献类型:
--
作者:
Aroian,RV;Sternberg,PW
The let-23 gene, which encodes a putative tyrosine kinase of the epidermal growth factor (EGF) receptor subfamily, has multiple functions during Caenorhabditis elegans development. We show that let-23 function is required for vulval precursor cells (VPCs) to respond to the signal that induces vulval differentiation: a complete loss of let-23 function results in no induction. However, some let-23 mutations that genetically reduce but do not eliminate let-23 function result in VPCs apparently hypersensitive to inductive signal: as many as five of six VPCs can adopt vulval fates, in contrast to the three that normally do. These results suggest that the let-23 receptor tyrosine kinase controls two opposing pathways, one that stimulates vulval differentiation and another that negatively regulates vulval differentiation. Furthermore, analysis of 16 new let-23 mutations indicates that the let-23 kinase functions in at least five tissues. Since various let-23 mutant phenotypes can be obtained independently, the let-23 gene is likely to have tissue-specific functions.
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影响因子:
3.3
作者:
H. Horvitz;J. Sulston
通讯作者:
H. Horvitz;J. Sulston
影响因子:
11.4
作者:
E. L. Ferguson;H. Horvitz
通讯作者:
H. Horvitz
影响因子:
3.3
作者:
Robert J. Clifford;Trudi Schupbach
通讯作者:
Robert J. Clifford;Trudi Schupbach
影响因子:
3.3
作者:
Ferguson,EL;Horvitz,HR
通讯作者:
Horvitz,HR
影响因子:
56.9
作者:
WELLS, A;WELSH, JB;ROSENFELD, MG
通讯作者:
ROSENFELD, MG