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| タイトル | Revisiting sodium phosphotungstate and ammonium molybdate as nonradioactive negative-staining agents for single-particle analysis. |
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| ジャーナル・号・ページ | Acta Crystallogr F Struct Biol Commun, Vol. 80, Issue Pt 12, Page 356-362, Year 2024 |
| 掲載日 | 2024年12月1日 |
著者 | Monika Gunkel / Arthur Macha / Elmar Behrmann / ![]() |
| PubMed 要旨 | This study reports the successful replacement of uranyl-based stains by either sodium phosphotungstate or ammonium molybdate in negative-staining electron microscopy. Using apoferritin as a test ...This study reports the successful replacement of uranyl-based stains by either sodium phosphotungstate or ammonium molybdate in negative-staining electron microscopy. Using apoferritin as a test specimen, it is demonstrated that in combination with a facile on-grid fixation step, both stains yield comparable images to uranyl formate. Subsequently, using β-galactosidase, it is shown that both stains can also successfully be employed for single-particle analysis, yielding virtually indistinguishable results from uranyl formate. As both replacement stains are nonradioactive, they are not subjected to the same handling restrictions as uranyl-based stains. Therefore they are not only cheaper to use, but also make decentralized sample-grid preparation, directly after purification, accessible to a broader range of scientists. |
リンク | Acta Crystallogr F Struct Biol Commun / PubMed:39601624 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 9.5 - 10.06 Å |
| 構造データ | ![]() EMDB-51069: UF-stained beta-galactosidase tetramer ![]() EMDB-51071: SPT-stained beta-galactosidase tetramer ![]() EMDB-51072: AMo stained beta-galactosidase |
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