IPR044292
Regulatory protein NPR
InterPro entry
Short name | NPR |
Description
This entry represents a group of plant regulatory proteins, including NPR1-4 from Arabidopsis. NPR1 is a central regulator of salicylic-acid (SA)-mediated defense signaling in Arabidopsis. It contains a BTB/POZ domain at the N-terminal and an ankyrin-repeat domain in the central region. It binds to TGA1, a member of the TGA family of transcription factors that activate SA-responsive elements in the promoters of PR (PATHOGENESIS-RELATED) genes. It also has cytosolic function in cross-communication between SA- and JA-dependent defense signaling pathways
[4]. NPR1 is functionally conserved in diverse plant species, including rice (Oryza sativa L.)
[3]. NPR3 and NPR4 have also been shown to be required for basal defense against pathogens
[1, 2].
References
1.An Arabidopsis NPR1-like gene, NPR4, is required for disease resistance. Liu G, Holub EB, Alonso JM, Ecker JR, Fobert PR. Plant J 41, 304-18, (2005). PMID: 15634206
2.Negative regulation of defense responses in Arabidopsis by two NPR1 paralogs. Zhang Y, Cheng YT, Qu N, Zhao Q, Bi D, Li X. Plant J 48, 647-56, (2006). PMID: 17076807
GO terms
biological process
molecular function
- None
cellular component
- None
Contributing Member Database Entry
- PANTHER:PTHR46475