論文 - 詳細
| RRC ID | 75043 |
|---|---|
| 著者 | Ohashi T, Tanaka T, Tanaka N, Takegawa K. |
| タイトル | SpMnn9p and SpAnp1p form a protein complex involved in mannan synthesis in the fission yeast Schizosaccharomyces pombe. |
| ジャーナル | J Biosci Bioeng |
| Abstract |
The cell walls of yeast cells possess a large mannan structure mainly comprising of a linear α1,6-linked mannose oligomer on the N-linked glycans. The biosynthesis of the mannan is initiated by ScOch1p α1,6-mannosyltransfease, and elongated by the mannan polymerase complexes M-Pol I and II in the Golgi of Saccharomyces cerevisiae. Here, we functionally characterized SpMnn9 and SpAnp1 proteins in the fission yeast Schizosaccharomyces pombe; these proteins are homologs of S. cerevisiae M-Pol II complex proteins ScMnn9p and ScAnp1p. Cells harboring disruptions in Spmnn9+ and Spanp1+ genes showed slower growth at 37°C and an increased sensitivity to hygromycin B, characteristic of a glycosylation defect. Results obtained from the acid phosphatase assay and high-performance liquid chromatography analysis of N-linked glycans in Spmnn9Δ and Spanp1Δ mutants suggested that the mannan structure in S. pombe is synthesized sequentially by the α-mannosyltransferases in the order of SpOch1p, SpMnn9p and SpAnp1p. Immunoprecipitation and split YFP analyses demonstrated that SpMnn9p and SpAnp1p form the M-Pol-II like complex. Together, these results provided an improved understanding of the mechanism of mannan synthesis by SpMnn9p and SpAnp1p in S. pombe. |
| 巻・号 | 130(4) |
| ページ | 335-340 |
| 公開日 | 2020-10-1 |
| DOI | 10.1016/j.jbiosc.2020.06.003 |
| PII | S1389-1723(20)30254-1 |
| PMID | 32650974 |
| MeSH | Cell Wall / metabolism Glycosylation Golgi Apparatus / metabolism Mannans / biosynthesis* Mannosyltransferases / metabolism Schizosaccharomyces / cytology Schizosaccharomyces / metabolism* Schizosaccharomyces pombe Proteins / genetics Schizosaccharomyces pombe Proteins / metabolism* |
| IF | 2.366 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 1 |
| 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 | |
| 酵母 | Wild-type S. pombe ARC039 |