- Stereoselective synthesis by Olefin Metathesis and characterization of η-carotene (7,8,7′,8′-tetrahydro-β,β-carotene)
-
The purported structure of the elusive η-carotene (7,8,7′, 8′-tetrahydro-β,β-carotene), a natural C40 carotenoid first detected in the berries of Lonicera japonica and in citrus fruits sixty years ago, has been synthesized by olefin cross-metat
- Fontan, Noelia,Alvarez, Rosana,De Lera, Angel R.
-
p. 975 - 979
(2012/07/16)
-
- Bioluminescence in the limpet-like snail, latia neritoides
-
Latia neritoides is a small limpet-like snail that produces a bright green bioluminescence; it is found only in New Zealand streams. The light-emitting system is unique. Although Latia bioluminescence has been studied since 1880, its mechanism is unclear. Shimomura and Johnson clarified the elements of the mechanism, including the structures of luciferin and luciferase, in 1968. However, neither the emitter nor the mechanism of the excited state of luciferin has been determined. We studied molecular mechanisms to clarify the characteristics of luciferin and luciferase and to produce a new application for this system.
- Ohmiya, Yoshihiro,Kojima, Satoshi,Nakamura, Mitsuhiro,Niwa, Haruki
-
p. 1197 - 1205
(2007/10/03)
-
- Bioluminescence activity of Latia luciferin analogs
-
Latia luciferin analogs were synthesized and their bioluminescence activities were measured. The Latia luciferase was found to recognize strictly the 2,6,6-trimethylcyclohexene ring moiety in the luciferin structure. While the enol ether analogs exhibited no bioluminescence activity, the corresponding enol acetate analog possessed 60% activity compared to natural luciferin having an enol formate structure, implying that the initial step of the light producing reaction is an enzymatic hydrolysis to yield the corresponding enolate anion. (C) 2000 Elsevier Science Ltd.
- Kojima, Satoshi,Maki, Shojiro,Hirano, Takashi,Ohmiya, Yoshihiro,Niwa, Haruki
-
p. 4409 - 4413
(2007/10/03)
-