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-Structure paper
タイトル | Single particle cryo-EM reconstruction of 52 kDa streptavidin at 3.2 Angstrom resolution. |
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ジャーナル・号・ページ | Nat Commun, Vol. 10, Issue 1, Page 2386, Year 2019 |
掲載日 | 2019年6月3日 |
著者 | Xiao Fan / Jia Wang / Xing Zhang / Zi Yang / Jin-Can Zhang / Lingyun Zhao / Hai-Lin Peng / Jianlin Lei / Hong-Wei Wang / |
PubMed 要旨 | The fast development of single-particle cryogenic electron microscopy (cryo-EM) has made it more feasible to obtain the 3D structure of well-behaved macromolecules with a molecular weight higher than ...The fast development of single-particle cryogenic electron microscopy (cryo-EM) has made it more feasible to obtain the 3D structure of well-behaved macromolecules with a molecular weight higher than 300 kDa at ~3 Å resolution. However, it remains a challenge to obtain the high-resolution structures of molecules smaller than 200 kDa using single-particle cryo-EM. In this work, we apply the Cs-corrector-VPP-coupled cryo-EM to study the 52 kDa streptavidin (SA) protein supported on a thin layer of graphene and embedded in vitreous ice. We are able to solve both the apo-SA and biotin-bound SA structures at near-atomic resolution using single-particle cryo-EM. We demonstrate that the method has the potential to determine the structures of molecules as small as 39 kDa. |
リンク | Nat Commun / PubMed:31160591 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 3.2 - 3.3 Å |
構造データ | |
化合物 | ChemComp-BTN: ChemComp-HOH: |
由来 |
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キーワード | CYTOSOLIC PROTEIN / streptavidin |