A DAF-1-binding protein BRA-1 is a negative regulator of DAF-7 TGF-beta signaling.
[No authors listed]
摘要
We have identified homologs of a human BMP receptor-associated molecule BRAM1 in Caenorhabditis elegans. One of them, BRA-1, has been found to bind DAF-1, the type I receptor in the DAF-7 transforming growth factor-beta pathway through the conserved C-terminal region. As analyzed using a BRA-1GFP (green fluorescent protein) fusion gene product, the bra-1 gene is expressed in amphid neurons such as ASK, ASI, and ASG, where daf-1 is also expressed. A loss-of-function mutation in bra-1 exhibits robust suppression of the Daf-c phenotype caused by the DAF-7 pathway mutations. We propose that BRA-1 represents a novel class of receptor-associated molecules that negatively regulate transforming growth factor-beta pathways.
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基因功能
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原始数据
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文献解读
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