ArticleThe Plant cell2010
SHORT HYPOCOTYL UNDER BLUE1 truncations and mutations alter its association with a signaling protein complex in Arabidopsis.
Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Widespread Presence of SPX and Its Potential Role as a Phosphorus Nutrient Regulator in Dinoflagellates.Microorganisms · 2025Article
- ThePlant direct · 2022Article
- WRKY2 and WRKY10 regulate the circadian expression ofPlant communications · 2022Article
- New insights into the evolution of SPX gene family from algae to legumes; a focus on soybean.BMC genomics · 2021Article
- SHB1 and CCA1 interaction desensitizes light responses and enhances thermomorphogenesis.Nature communications · 2019Article
- Down-regulation of OsSPX1 caused semi-male sterility, resulting in reduction of grain yield in rice.Plant biotechnology journal · 2016Article
- Identification of plant vacuolar transporters mediating phosphate storage.Nature communications · 2016Article
- Rice SPX1 and SPX2 inhibit phosphate starvation responses through interacting with PHR2 in a phosphate-dependent manner.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Article
- Phylogeny, structural evolution and functional diversification of the plant PHOSPHATE1 gene family: a focus on Glycine max.BMC evolutionary biology · 2013Article
- De novo transcriptome sequence assembly and analysis of RNA silencing genes of Nicotiana benthamiana.PloS one · 2013Article
- A WRKY transcription factor recruits the SYG1-like protein SHB1 to activate gene expression and seed cavity enlargement.PLoS genetics · 2013Article
- Hypersensitive to red and blue 1 and its modification by protein phosphatase 7 are implicated in the control of Arabidopsis stomatal aperture.PLoS genetics · 2012Article
- Article
- Family life at close quarters: communication and constraint in angiosperm seed development.Protoplasma · 2010Review
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Authors and funding
2 authors.
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Abstract
Higher plants monitor their ambient light signals through red/far-red absorbing phytochromes and blue/UV-A light absorbing cryptochromes. Subsequent signaling cascades alter gene expression and initiate morphogenic responses. We previously isolated SHORT HYPOCOTYL UNDER BLUE1 (SHB1), a putative transcriptional coactivator in light signaling. SHB1 is homologous to the SYG1 protein family and contains an N-terminal SPX domain and a C-terminal EXS domain. Overaccumulation of the SPX domain caused a long hypocotyl phenotype similar to that of shb1-D under red, far-red, or blue light. By contrast, overaccumulation of the C-terminal EXS domain led to a short hypocotyl phenotype similar to that of shb1 under blue light. The N-terminal SPX domain was associated with a smaller protein complex than the native protein complex associated with endogenous SHB1. By contrast, the EXS domain was associated with a slightly smaller protein complex than the native protein complex, but it largely displaced endogenous SHB1 from its native protein complex. In addition, all six missense mutations that we identified from a suppressor screen were clustered within or close to the SPX domain, and these mutations impaired the assembly of the SHB1-containing protein complex. We propose that both SPX and EXS domains likely anchor SHB1 to a protein complex, and the SPX domain is critical for SHB1 signaling.
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