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| Symbol: Nd; atomic weight: 144.24; atomic number: 60 |
| Symbol: Lr; atomic weight 260; atomic number: 103 |
luciferin
in biochemistry, any of several organic compounds whose oxidation in the presence of the enzyme luciferase produces light. Luciferins vary in chemical structure; the luciferin of luminescent bacteria, for example, is completely different from that of fireflies. For each type luciferin, there is a specific luciferase. See also bioluminescence.
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