• Thumbnail for S-Adenosylmethioninamine
    S-Adenosylmethioninamine is a substrate that is required for the biosynthesis of polyamines including spermidine, spermine, and thermospermine. It is produced...
    3 KB (75 words) - 03:21, 17 October 2023
  • S-adenosylmethioninamine:spermidine 3-aminopropyltransferase (thermospermine synthesizing). This enzyme catalyses the following chemical reaction S...
    2 KB (194 words) - 16:01, 26 August 2023
  • Thumbnail for Putrescine
    putrescine and S-adenosylmethioninamine (decarboxylated S-adenosyl methionine) to produce spermidine. Spermidine in turn is combined with another S-adenosylmethioninamine...
    16 KB (1,496 words) - 01:30, 25 December 2023
  • Thumbnail for S-Adenosyl methionine
    decarboxylated by adenosylmethionine decarboxylase (EC 4.1.1.50) to form S-adenosylmethioninamine. This compound then donates its n-propylamine group in the biosynthesis...
    23 KB (2,413 words) - 06:39, 27 March 2024
  • (EC 2.5.1.23) is an enzyme that catalyzes the chemical reaction S-adenosylmethioninamine + propane-1,3-diamine ⇌ {\displaystyle \rightleftharpoons }...
    2 KB (165 words) - 18:38, 23 January 2024
  • using an aminopropyl group from decarboxylated S-adenosyl-L-methionine (SAM), S-Adenosylmethioninamine. The reaction is catalyzed by spermidine synthase...
    15 KB (1,612 words) - 13:59, 9 April 2024
  • Thumbnail for Spermidine synthase
    the propylamine group from S-adenosylmethioninamine to putrescine in the biosynthesis of spermidine. The systematic name is S-adenosyl...
    6 KB (624 words) - 18:37, 23 January 2024
  • Thumbnail for Monocrotaline
    spermidine by addition of a propylamino group from decarboxylated S-adenosylmethioninamine (4: spermidine synthase). Spermidine and another molecule of putrescine...
    17 KB (1,436 words) - 17:05, 4 December 2023
  • catalyses the following chemical reaction S-adenosylmethioninamine + spermidine ⇌ {\displaystyle \rightleftharpoons } S-methyl-5'-thioadenosine + spermine Spermine...
    3 KB (318 words) - 15:51, 26 August 2023
  • Thumbnail for Adenosylmethionine decarboxylase
    decarboxylase (EC 4.1.1.50) catalyzes the conversion of S-adenosyl methionine to S-adenosylmethioninamine. Polyamines such as spermidine and spermine are essential...
    3 KB (263 words) - 12:59, 26 August 2023