3M4D

Crystal structure of the M113N mutant of alpha-hemolysin

3M4D の概要

• エントリーDOI: 10.2210/pdb3m4d/pdb
• 関連するPDBエントリー: 3M3R 3M4E
• 分子名称: Alpha-hemolysin (2 entities in total)
• 機能のキーワード: beta-barrel, cytolytic protein, cytolysis, hemolysis, secreted, toxin, cell invasion
• 由来する生物種: Staphylococcus aureus
• 細胞内の位置: Secreted: P09616
• タンパク質・核酸の鎖数: 7
• 化学式量合計: 232910.37

構造登録者

Montoya, M.,Gouaux, E. (登録日: 2010-03-10, 公開日: 2010-05-05, 最終更新日: 2024-02-21)

主引用文献

Banerjee, A.,Mikhailova, E.,Cheley, S.,Gu, L.Q.,Montoya, M.,Nagaoka, Y.,Gouaux, E.,Bayley, H.
Molecular bases of cyclodextrin adapter interactions with engineered protein nanopores.
Proc.Natl.Acad.Sci.USA, 107:8165-8170, 2010

PubMed Abstract: Engineered protein pores have several potential applications in biotechnology: as sensor elements in stochastic detection and ultrarapid DNA sequencing, as nanoreactors to observe single-molecule chemistry, and in the construction of nano- and micro-devices. One important class of pores contains molecular adapters, which provide internal binding sites for small molecules. Mutants of the alpha-hemolysin (alphaHL) pore that bind the adapter beta-cyclodextrin (betaCD) approximately 10(4) times more tightly than the wild type have been obtained. We now use single-channel electrical recording, protein engineering including unnatural amino acid mutagenesis, and high-resolution x-ray crystallography to provide definitive structural information on these engineered protein nanopores in unparalleled detail.

PubMed: 20400691
DOI: 10.1073/pnas.0914229107

実験手法

X-RAY DIFFRACTION (1.9 Å)