Monolayer Formation of Cytochrome b562 on Gold Surfaces and Its Reconstitution Reaction, Studied by Surface Plasmon Resonance Spectroscopy

作者: Kazutoshi Kobayashi , Masafumi Shimizu , Teruyuki Nagamune , Hiroyuki Sasabe , Yu Fang

DOI: 10.1246/BCSJ.75.1707

关键词: HemeCytochromeMoietyAnalytical chemistryDissociation (chemistry)GuanidineMonolayerAdsorptionPhotochemistryMoleculeChemistry

摘要: Association and dissociation reactions of cytochrome b562 on solid surfaces were investigated by means surface plasmon resonance spectroscopy. Propionates side chains in the heme molecule modified with sulfur moiety as an anchor part to be adsorbed gold substrate. This was firstly reconstituted apo-protein solution. holo-protein then either bare substrate or pre-modified Native also same substrates for control experiment. The successfully pre-treated without denaturation structure, probably homogeneous anisotropic orientation. Guanidine hydrochloride buffer pH 5.0 applied remove from surface, thiolated derivative remaining surfaces. Apo-protein again introduced reconstitution holo-cyt.b562. success the...

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