enzymology, a homospermidine synthase (spermidine-specific) (EC 2.5.1.45) is an enzyme that catalyzes the chemical reaction spermidine + putrescine ⇌...
2 KB (209 words) - 18:36, 23 January 2024
\rightleftharpoons } sym-homospermidine + NH3 + H+ (2) putrescine + spermidine ⇌ {\displaystyle \rightleftharpoons } sym-homospermidine + propane-1,3-diamine...
3 KB (292 words) - 19:32, 25 March 2025
Deoxyhypusine synthase (EC 2.5.1.46, spermidine:eIF5A-lysine 4-aminobutyltransferase (propane-1,3-diamine-forming)) is an enzyme with systematic name...
5 KB (509 words) - 13:47, 26 August 2023
deoxyhypusine synthesis reaction. Generation of spermidine or homospermidine from deoxyhypusine by deoxyhypusine synthase". J. Biol. Chem. 278 (35): 32683–91. doi:10...
10 KB (917 words) - 19:32, 2 December 2023
to occur through the first pathway-specific enzyme homospermidine synthase. The polyamines putrescine and spermidine are derived from the basic amino acid...
37 KB (3,753 words) - 18:28, 12 June 2025
S-adenosylmethioninamine (4: spermidine synthase). Spermidine and another molecule of putrescine react to form the symmetric homospermidine with loss of 1,3-diaminopropane...
17 KB (1,448 words) - 23:05, 13 June 2025
readily converted to putrescine and spermidine. Next, in an NAD+-dependent reaction catalyzed by homospermidine synthase (HSS), an aminopropyl group from...
17 KB (1,703 words) - 23:56, 9 May 2025
List of EC numbers (EC 2) (section EC 2.7.12: Dual-specificity kinases (those acting on Ser/Thr and Tyr residues))
nicotianamine synthase EC 2.5.1.44: homospermidine synthase EC 2.5.1.45: homospermidine synthase (spermidine-specific) EC 2.5.1.46: deoxyhypusine synthase EC 2...
215 KB (21,664 words) - 05:19, 27 April 2025
Evolution: the gene for homospermidine synthase (EC 2.5.1.44) evolved from the gene for deoxyhypusine synthase (EC 2.5.1.46, spermidine:eIF5A-lysine 4-aminobutyltransferase)...
17 KB (1,872 words) - 15:39, 30 May 2025