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Protonated Schiff Base PSB

To begin to elucidate such issues and to create a theoretical framework for them, we have focused [4-9] on a model of a protonated Schiff base (PSB) in a nonequilibrium dielectric continuum solvent. A key feature for the Sj-Sq Cl in PSBs such as retinal which plays a key role in the chromophore s cis-trans isomerization is that a charge transfer is involved, implying a strong electrostatic coupling to a polar and polarizable environment. In particular, there is translocation of a positive charge [92], discussed further below. Charge transfer also characterizes the earliest events in the photoactive yellow protein photocycle, for example [93],... [Pg.439]

Retilynidene, the chromophore of the rhodopsin proteins, and the Protonated Schiff Base (PSB) models... [Pg.1181]

PBS=phosphate buffered saline PSB=protonated schiff base... [Pg.50]

TABLE 28. NMR chemical shifts of retinyUdene PSBs, (protonated schiff bases), rhodopsin pigments and corresponding F NMR opsin shifts... [Pg.128]

See other pages where Protonated Schiff Base PSB is mentioned: [Pg.125]    [Pg.109]    [Pg.125]    [Pg.125]    [Pg.196]    [Pg.490]    [Pg.815]    [Pg.817]    [Pg.125]    [Pg.109]    [Pg.125]    [Pg.125]    [Pg.196]    [Pg.490]    [Pg.815]    [Pg.817]    [Pg.154]    [Pg.154]    [Pg.154]    [Pg.815]    [Pg.817]    [Pg.1177]   


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Base protonation

Bases protonic

Protonated base

Schiff bases, protonated

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