Table 1 uHPLC-MS/MS confirmation of enzymatic activity of brain and lung tissues of WT and KO rats. For rats, values shown are averages of duplicates from each of n = 6 rats per genotype ± standard deviation. For rabbit lung, values shown are averages of a duplicate ± standard deviation. TA = tryptamine, NF = peak not found.

From: Indolethylamine N-methyltransferase (INMT) is not essential for endogenous tryptamine-dependent methylation activity in rats

Extracts

TA

NMT (nM)

DMT (nM)

WT rat brain

0.18 ± 0.09

NF

WT rat brain

+

0.15 ± 0.09

NF

KO rat brain

0.29 ± 0.13

NF

KO rat brain

+

0.11 ± 0.06

NF

WT rat lung

0.44 ± 0.22

NF

WT rat lung

+

0.6 ± 0.67

NF

KO rat lung

0.68 ± 0.23

NF

KO rat lung

+

0.44 ± 0.26

NF

Rabbit lung

0.08 ± 0.05

NF

Rabbit lung

+

24.2 ± 13.2

0.57 ± 0.18