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Melanopsin (Opn4) requirement for normal light-induced circadian phase shifting

Panda S, Sato TK, Castrucci AM, Rollag MD, DeGrip WJ, Hogenesch JB, Provencio I, Kay SA (2002) Melanopsin (Opn4) requirement for normal light-induced circadian phase shifting. Science 298(5601):2213-2216. doi: 10.1126/science.1076848 PMID: 12481141

Objective: To investigate the role of melanopsin in circadian photoentrainment in mammals.

Summary: The study focused on understanding how melanopsin, an opsin-based photopigment, affects the circadian rhythms in mammals. By generating melanopsin-null mice and observing their response to light-induced circadian phase shifting, the research demonstrated that while these mice maintain some entrainment to light/dark cycles, their phase resetting in response to monochromatic light is severely attenuated. This highlights melanopsin’s critical role in circadian photoentrainment, alongside other mechanisms that contribute to this process.

Usage: Anti-Melanopsin (AB-N38) was incubated with tissue for 24 hr at 4°C at a 1:2,500 dilution in a TBS incubating buffer containing 1% bovine serum albumin, 0.25% carrageenan lambda and 0.003% Triton X-100.

Related Products: Melanopsin Rabbit Polyclonal (Cat. #AB-N38), Melanopsin Rabbit Polyclonal, affinity-purified (Cat. #AB-N39)

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