6IPO

Ferritin mutant C90A/C102A/C130A/D144C

6IPO の概要

• エントリーDOI: 10.2210/pdb6ipo/pdb
• 分子名称: Ferritin heavy chain, MAGNESIUM ION (3 entities in total)
• 機能のキーワード: ferritin, disulfide bond, 48-mer nanocage, oxidoreductase
• 由来する生物種: Homo sapiens (Human)
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 40764.08

構造登録者

Zang, J.,Chen, H.,Zhang, X.,Zhao, G. (登録日: 2018-11-03, 公開日: 2019-03-13, 最終更新日: 2024-11-13)

主引用文献

Zang, J.,Chen, H.,Zhang, X.,Zhang, C.,Guo, J.,Du, M.,Zhao, G.
Disulfide-mediated conversion of 8-mer bowl-like protein architecture into three different nanocages.
Nat Commun, 10:778-778, 2019

PubMed Abstract: Constructing different protein nanostructures with high-order discrete architectures by using one single building block remains a challenge. Here, we present a simple, effective disulfide-mediated approach to prepare a set of protein nanocages with different geometries from single building block. By genetically deleting an inherent intra-subunit disulfide bond, we can render the conversion of an 8-mer bowl-like protein architecture (NF-8) into a 24-mer ferritin-like nanocage in solution, while selective insertion of an inter-subunit disulfide bond into NF-8 triggers its conversion into a 16-mer lenticular nanocage. Deletion of the same intra-subunit disulfide bond and insertion of the inter-subunit disulfide bond results in the conversion of NF-8 into a 48-mer protein nanocage in solution. Thus, in the laboratory, simple mutation of one protein building block can generate three different protein nanocages in a manner that is highly reminiscent of natural pentamer building block originating from viral capsids that self-assemble into protein assemblies with different symmetries.

PubMed: 30770832
DOI: 10.1038/s41467-019-08788-9

実験手法

X-RAY DIFFRACTION (2.998 Å)