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Table 1 Measures of activity of tryptophan hydroxylase (TPH) and hydroxyindol-O-methyltransferase (HIOMT) with samples of the animals at Zeitgeber time (ZT) = 8 (that is, 8 hours after lights on) and ZT = 20 (that is, 8 hours after lights off)

From: Developmental and light-entrained expression of melatonin and its relationship to the circadian clock in the sea anemone Nematostella vectensis

Enzymatic assay/Time point ZT = 8 ZT = 20
TPH 78.94 ± 7.32 58.96 ± 4.73
HIOMT 91.71 ± 0.80 43.51 ± 0.99
  1. Values are mean ± SEM for four samples per assay. Activity expressed in picomoles per 200 mg of protein per hour. ZT20 values are statistically different from ZT = 8; P <0.05.
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EvoDevo

ISSN: 2041-9139