Volume 36, Issue 1, Pages 1-3 (September 2002) Like Night and Day  Vadim Y. Arshavsky  Neuron  Volume 36, Issue 1, Pages 1-3 (September 2002) DOI: 10.1016/S0896-6273(02)00937-6

Figure 1 Two Retinoid Cycles in Vertebrate Retina See text for details. The established retinoid cycle, illustrated in panel (A), serves as the only source of rod opsin regeneration; however, it provides for the cone opsin regeneration as well. The novel pathway from panel (C) serves to regenerate exclusively cone opsin. The three novel enzymatic reactions described by Mata et al. are highlighted by red arrows. Modified from Figures 1 and 7 of Mata et al. (2002). Neuron 2002 36, 1-3DOI: (10.1016/S0896-6273(02)00937-6)