Interactions in the pollen-specific receptor-like kinases-containing signaling network.
Interactions in the pollen-specific receptor-like kinases-containing signaling network.
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包含花粉特异性受体样激酶的信号网络中的相互作用
DOI:
10.1016/j.ejcb.2010.08.002
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发表时间:
2010
影响因子:
6.6
通讯作者:
Berken
中科院分区:
文献类型:
--
作者:
Loecke;Fricke;Humpert;Berken
The pollen-specific receptor-like kinases (PRKs) from Solanum lycopersicum, LePRK1 and LePRK2, are believed to be involved in the regulation of pollen germination and pollen tube growth. They appear to be part of a multimeric complex in which the transmembranic LePRKs presumably have a key position in transducing exogenous signals through the plasma membrane. Here, we focused on extra- and intracellular interactions involving the LePRKs. We show in yeast two-hybrid experiments a cross-interaction of putative PRK-ligands, the oligomerization of LePRK2 and a direct contact of LePRKs to activated Rho proteins of plants (ROPs). Moreover, we observed that pollen-specific RopGEFs, which catalyze ROP activation and may be regulated by PRK interaction, are active in vitro while autoinhibition seems to occur in vivo. We suggest that activation of RopGEFs as a checkpoint in PRK signal transduction is a more complex event including further components in planta. Our findings point to some new aspects in PRK-mediated signal transduction implying a LePRK2 complex with different signaling activity and a further direct control of LePRKs by activated ROP.
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影响因子:
16
作者:
Christoph Thomas;Inka Fricke;A. Scrima;A. Berken;A. Wittinghofer
通讯作者:
Christoph Thomas;Inka Fricke;A. Scrima;A. Berken;A. Wittinghofer
影响因子:
3.7
作者:
Thomas;Fricke;Weyand;Berken
通讯作者:
Berken
影响因子:
7.4
作者:
Li, H;Wu, G;Yang, ZB
通讯作者:
Yang, ZB
影响因子:
7.4
作者:
Zhang, Dong;Wengier, Diego;Tang, Wei-Hua
通讯作者:
Tang, Wei-Hua
影响因子:
11.4
作者:
Komander, David;Garg, Ritu;Wan, Paul T. C.;Ridley, Anne J.;Barford, David
通讯作者:
Barford, David