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基本情報
登録情報 | ![]() |
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![]() | Ethylene Receptor 1 (DHp + CA domains)
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機能・相同性 | ![]() ethylene receptor activity / regulation of seedling development / detection of ethylene stimulus / ethylene binding / seed dormancy process / defense response by callose deposition in cell wall / negative regulation of ethylene-activated signaling pathway / sugar mediated signaling pathway / response to gibberellin / response to insect ...ethylene receptor activity / regulation of seedling development / detection of ethylene stimulus / ethylene binding / seed dormancy process / defense response by callose deposition in cell wall / negative regulation of ethylene-activated signaling pathway / sugar mediated signaling pathway / response to gibberellin / response to insect / phloem or xylem histogenesis / cytokinin metabolic process / response to ethylene / regulation of stomatal movement / response to auxin / protein histidine kinase activity / response to abscisic acid / hydrogen peroxide biosynthetic process / histidine kinase / phosphorelay sensor kinase activity / response to salt stress / response to molecule of bacterial origin / defense response / response to heat / defense response to bacterium / cell division / endoplasmic reticulum membrane / endoplasmic reticulum / ATP binding / identical protein binding / metal ion binding 類似検索 - 分子機能 |
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![]() | ![]() タイトル: Structural model of the cytosolic domain of the plant ethylene receptor 1 (ETR1). 著者: Hubert Mayerhofer / Saravanan Panneerselvam / Heidi Kaljunen / Anne Tuukkanen / Haydyn D T Mertens / Jochen Mueller-Dieckmann / ![]() 要旨: Ethylene initiates important aspects of plant growth and development through disulfide-linked receptor dimers located in the endoplasmic reticulum. The receptors feature a small transmembrane, ...Ethylene initiates important aspects of plant growth and development through disulfide-linked receptor dimers located in the endoplasmic reticulum. The receptors feature a small transmembrane, ethylene binding domain followed by a large cytosolic domain, which serves as a scaffold for the assembly of large molecular weight complexes of different ethylene receptors and other cellular participants of the ethylene signaling pathway. Here we report the crystallographic structures of the ethylene receptor 1 (ETR1) catalytic ATP-binding and the ethylene response sensor 1 dimerization histidine phosphotransfer (DHp) domains and the solution structure of the entire cytosolic domain of ETR1, all from Arabidopsis thaliana. The isolated dimeric ethylene response sensor 1 DHp domain is asymmetric, the result of different helical bending angles close to the conserved His residue. The structures of the catalytic ATP-binding, DHp, and receiver domains of ethylene receptors and of a homologous, but dissimilar, GAF domain were refined against experimental small angle x-ray scattering data, leading to a structural model of the entire cytosolic domain of the ethylene receptor 1. The model illustrates that the cytosolic domain is shaped like a dumbbell and that the receiver domain is flexible and assumes a position different from those observed in prokaryotic histidine kinases. Furthermore the cytosolic domain of ETR1 plays a key role, interacting with all other receptors and several participants of the ethylene signaling pathway. Our model, therefore, provides the first step toward a detailed understanding of the molecular mechanics of this important signal transduction process in plants. |
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![]() | 名称: Ethylene Receptor 1 (DHp + CA domains) / Dry vol: 33262 / 試料濃度: 0.60-6.00 / 濃度測定法: A280 |
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バッファ | 名称: 20 mM Tris 150 mM NaCl 1 mM DTT 5 mM ADP / pH: 8.8 |
要素 #778 | 名称: ETR1_DHp-CA / タイプ: protein 記述: Ethylene receptor 1 dimerization histidine phosphotransfer + catalytic ATP-binding domains 分子量: 27.492 / 分子数: 2 / 由来: Arabidopsis thaliana / 参照: UniProt: P49333 配列: TAIRARNDFL AVMNHEMRTP MHAIIALSSL LQETELTPEQ RLMVETILKS SNLLATLMND VLDLSRLEDG SLQLELGTFN LHTLFREVLN LIKPIAVVKK LPITLNLAPD LPEFVVGDEK RLMQIILNIV GNAVKFSKQG SISVTALVTK SDTRAADFFV VPTGSHFYLR ...配列: TAIRARNDFL AVMNHEMRTP MHAIIALSSL LQETELTPEQ RLMVETILKS SNLLATLMND VLDLSRLEDG SLQLELGTFN LHTLFREVLN LIKPIAVVKK LPITLNLAPD LPEFVVGDEK RLMQIILNIV GNAVKFSKQG SISVTALVTK SDTRAADFFV VPTGSHFYLR VKVKDSGAGI NPQDIPKIFT KFAQTQSLAT RSSGGSGLGL AISKRFVNLM EGNIWIESDG LGKGCTAIFD VKLGISERSN E |
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