期刊
BIOCHEMICAL SOCIETY TRANSACTIONS
卷 38, 期 -, 页码 622-626出版社
PORTLAND PRESS LTD
DOI: 10.1042/BST0380622
关键词
gametophyte; protein interaction; self-incompatibility; S-locus F-box protein; S-RNase; yeast two-hybrid assay
The recent identification of several proteins playing key roles in S-RNase-based gametophytic self-incompatibility has led both to a greater understanding of the molecular biology of this response, as well as to questions regarding the precise mechanism by which compatible pollen tubes are recognized and accepted. A proposed variant SCFsLF (where SCF is SSK1/cullin/F-box and SLF is S-locus F-box) ubiquitin ligase complex is thought to play a central role in recognizing and inhibiting non-self S-RNases, but the exact role of ubiquitination remains unclear. How the possible sequestration of non-self S-RNases in a pollen vacuolar compartment can be reconciled with the need for protein interaction between S-RNase and the SCFsLF complex needs to be determined. Current work to answer these questions focuses on more precisely defining quantitative protein interactions and subcellular localization of proteins involved in S-RNase-based gametophytic self-incompatibility.
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