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Article

Arabidopsis RelA/SpoT homologs implicate (p)ppGpp in plant signaling.

Proceedings of the National Academy of Sciences of the United States of America - 28 Mar 2000

van der Biezen E A, Sun J, Coleman M J, Bibb M J, Jones J D

Abstract excerpt

Arabidopsis RPP5 is a member of a large class of pathogen resistance genes encoding nucleotide-binding sites and leucine-rich repeat domains. Yeast two-hybrid analysis showed that RPP5 specifically interacts with At-RSH1, an Arabidopsis RelA/SpoT homolog. In Escherichia coli, RelA and SpoT determine the level of guanosine tetraphosphate (ppGpp) and guanosine pentaphosphate (pppGpp), which are the effector...

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PMID: 10725385
DOI: 10.1073/pnas.97.7.3747
PMCID: PMC16311

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