Exact Mass: 272.21
Exact Mass Matches: 272.21
Found 13 metabolites which its exact mass value is equals to given mass value 272.21,
within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
N(6)-(Octanoyl)lysine
N(6)-(Octanoyl)lysine is a modified lysine amino acid that is normally found in acyl carrier protein. The enzyme lipoyl(octanoyl) transferase (EC 2.3.1.181) catalyzes this amino acid residue modification with the following reaction:. octanoyl-[acyl-carrier-protein] + protein <-> protein N6-(octanoyl)lysine + acyl carrier protein. In other words, it catalyzes the transfer of endogenously produced octanoic acid from octanoyl-acyl-carrier-protein onto the lipoyl domains of lipoate-dependent enzymes. Another enzyme called lipoyl synthase (EC 2.8.1.8) catalyzes the chemical reaction:. protein N6-(octanoyl)lysine + 2 sulfur + 2 S-adenosyl-L-methionine <-> protein N6-(lipoyl)lysine + 2 L-methionine + 2 5-deoxyadenosine. In other words, this enzyme catalyzes the radical-mediated insertion of two sulfur atoms into the C-6 and C-8 positions of the octanoyl moiety bound to the lipoyl domains of lipoate-dependent enzymes, thereby converting the octanoylated domains into lipoylated derivatives. Degradation of acyl carrier protein or of lipoate derivatized proteins will lead to free N(6)-(Octanoyl)lysine. N(6)-(Octanoyl)lysine is a modified lysine amino acid that is normally found in acyl carrier protein. The enzyme lipoyl(octanoyl) transferase (EC 2.3.1.181) catalyzes this amino acid residue modification with the following reaction:
