論文 - 詳細
| RRC ID | 54592 |
|---|---|
| 著者 | Takenaka Y, Kato K, Ogawa-Ohnishi M, Tsuruhama K, Kajiura H, Yagyu K, Takeda A, Takeda Y, Kunieda T, Hara-Nishimura I, Kuroha T, Nishitani K, Matsubayashi Y, Ishimizu T. |
| タイトル | Pectin RG-I rhamnosyltransferases represent a novel plant-specific glycosyltransferase family. |
| ジャーナル | Nat Plants |
| Abstract |
Pectin is one of the three key cell wall polysaccharides in land plants and consists of three major structural domains: homogalacturonan, rhamnogalacturonan I (RG-I) and RG-II. Although the glycosyltransferase required for the synthesis of the homogalacturonan and RG-II backbone was identified a decade ago, those for the synthesis of the RG-I backbone, which consists of the repeating disaccharide unit [→2)-α-L-Rha-(1 → 4)-α-D-GalUA-(1→], have remained unknown. Here, we report the identification and characterization of Arabidopsis RG-I:rhamnosyltransferases (RRTs), which transfer the rhamnose residue from UDP-β-L-rhamnose to RG-I oligosaccharides. RRT1, which is one of the four Arabidopsis RRTs, is a single-spanning transmembrane protein, localized to the Golgi apparatus. RRT1 was highly expressed during formation of the seed coat mucilage, which is a specialized cell wall with abundant RG-I. Loss-of-function mutation in RRT1 caused a reduction in the level of RG-I in the seed coat mucilage. The RRTs belong to a novel glycosyltransferase family, now designated GT106. This is a large plant-specific family, and glycosyltransferases in this family seem to have plant-specific roles, such as biosynthesis of plant cell wall polysaccharides. |
| 巻・号 | 4(9) |
| ページ | 669-676 |
| 公開日 | 2018-9-1 |
| DOI | 10.1038/s41477-018-0217-7 |
| PII | 10.1038/s41477-018-0217-7 |
| PMID | 30082766 |
| MeSH | Arabidopsis / enzymology* Arabidopsis / metabolism Arabidopsis / physiology Arabidopsis Proteins / metabolism* Arabidopsis Proteins / physiology Cell Wall / metabolism Glycosyltransferases / metabolism* Glycosyltransferases / physiology Pectins / metabolism* Rhamnose / metabolism Transcriptome |
| IF | 13.297 |
| 引用数 | 22 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 28 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| シロイヌナズナ / 植物培養細胞・遺伝子 | rpc00008 |