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. 2010 Oct;154(2):471-4.
doi: 10.1104/pp.110.161190.

Ubiquitin ligase-coupled receptors extend their reach to jasmonate

Gregg A Howe  1
Affiliations

Ubiquitin ligase-coupled receptors extend their reach to jasmonate

Gregg A Howe. Plant Physiol. 2010 Oct.
No abstract available

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Figures

Figure 1.
Figure 1.
Current model of JA signal transduction. Low JA-Ile levels (left section) permit the accumulation of JAZ proteins (denoted with their Jas [J], ZIM/TIFY [Z], and Domain 1 [D1] regions) that bind to the bHLH-type transcription factor MYC2 (BD, DNA-binding domain; AD, activation domain). Repression of JA response genes involves binding of JAZ to NINJA, which contains an EAR motif that recruits the corepressor TPL. The mechanism by which TPL silences gene expression is unknown (?). In response to stress-related cues that activate JA-Ile synthesis, high levels of the hormone (right section) promote SCFCOI1-mediated ubiquitination and subsequent degradation of JAZs by the 26S proteasome (26S prot.). JAZ degradation relieves TPL-mediated repression of gene expression, and may also alleviate passive repression by allowing MYC2 to engage RNA polymerase II (RNAP) and/or the Mediator complex that links RNAP to MYC2.
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