56254-00-3Relevant articles and documents
Visible-light-induced photodimerization of a photoactive yellow protein (PYP) chromophore model in a single crystal
Nath, Naba K.,Manoj, Kochunnoonny,Gaz, Andrei ?erban,Naumov, Pan?e
, p. 8094 - 8099 (2013/07/27)
The chromophore of the photoactive yellow protein (PYP), the photoreceptor in the photomotility of the bacterium Halorhodospira halophila, is a deprotonated para-coumaric thioester linked to the side residue of a cysteine residue. The photophysics of the
Photochemical reaction of p-hydroxycinnamic-thiophenyl ester in the microcrystalline state
Usman, Anwar,Asahi, Tsuyoshi,Sugiyama, Teruki,Masuhara, Hiroshi,Tohnai, Norimitsu,Miyata, Mikiji
body text, p. 14233 - 14240 (2011/05/06)
We have studied the photochromic reaction of p-hydroxycinnamic-thiophenyl ester in the microcrystalline state. We attributed the fluorescence spectral evolution of the mierocrystal, under UV irradiation, to the photoinduced trans-to-cis isomerization, The photocyclic behavior of the chromophore was demonstrated by cis-to-trans back reaction under a subsequent visible light irradiation. In addition, the [2 + 2] topochemical photocyclodimer was observed as another photoproduct. It is considered that the cooperative photoisomerization is initiated at the local lattice distortion and free spaces around the [2 + 2] cyclodimer near the crystal surface, and the photoisomerization induces larger lattice deformation and further photoisomerization in the interior of the crystal.
Color regulation and stabilization of chromophore by Cys69 in photoactive yellow protein active center
Okamoto, Kentaro,Hamada, Norio,Okamura, Taka-Aki,Ueyama, Norikazu,Yamamoto, Hitoshi
experimental part, p. 3782 - 3791 (2009/10/23)
Model compounds of PYP chromophore were synthesized and characterized to investigate the role of the Cys69 residue in the active center, which has the intramolecular NH...OC hydrogen bond to the conjugated carbonyl oxygen and thioester linkage of the chro
