X-Ray Photoelectron Spectroscopy (XPS) of Bacteriorhodopsin Analogues Synthesized from Fluorophenyl Retinals

Masae Takahashi, Takashi Takahashi, Fumio Tokunaga, Takasi Sagawa

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The two external point-charge (TEPC) model for bacteriorhodopsin (bR) has been examined by X-ray photoelectron spectroscopy (XPS) and CNDO/S molecular orbital calculations. A main concern was given to a point charge near the β-ionone ring. XPS measurements were carried out on fluorophenyl retinal(F-ret)and their derivatives (SchifF base, protonated Schiff base and bacteriorhodopsin analogues (F-bR)), paying close attention to the chemical shift of the F h core level. No meaningful differences were observed among these species although numerical calculations on an assumption of the TEPC model have predicted the chemical shift of about 3 eV between F-ret and F-bR. This fact has arisen a serious question to the validity of the TEPC model. The same conclusion has been reached by the present study of absorption maxima of F-ret and their derivatives.

本文言語English
ページ(範囲)1557-1564
ページ数8
ジャーナルjournal of the physical society of japan
53
4
DOI
出版ステータスPublished - 1984

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「X-Ray Photoelectron Spectroscopy (XPS) of Bacteriorhodopsin Analogues Synthesized from Fluorophenyl Retinals」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル