生物物理
Online ISSN : 1347-4219
Print ISSN : 0582-4052
ISSN-L : 0582-4052
総説
蛋白質における光駆動プロトン移動と水素結合
石北 央斉藤 圭亮
著者情報
ジャーナル フリー

2013 年 53 巻 4 号 p. 198-201

詳細
抄録

In a protein environment, proton transfer events can be initiated by configurational changes of pigments (e.g., trans-cis isomerization) or changes in the redox states of cofactors upon photoactivation. These changes lead to alteration of pKa of hydrogen-bond (H-bond) donor and acceptor moieties. In particular, when the pKa values of the two moieties match, a “symmetric H-bond” can be formed. Formation of an unusually short, symmetric H-bond appears to be essential for proton transfer events via H-bonds, and has been observed in photoreceptor proteins.

著者関連情報
© 2013 by THE BIOPHYSICAL SOCIETY OF JAPAN
前の記事 次の記事
feedback
Top