CatLogenzyme kinetics catalog

EC 2.5.1.45: homospermidine synthase (spermidine-specific)

TransferasesOpen in Browse

CatLog read 10 records for EC 2.5.1.45 from 1 paper, for 1 organism. Names in these papers: homospermidine synthase.

Read from the paper by an AI model and checked against the paper by a second, separate AI run; code converted the units.

CatLog also holds 1 record for EC 2.5.1.45 that are not yet re-read: from its earlier version, built from the enzyme databases and partly checked against the papers. All records for EC 2.5.1.45 in Browse.

Papers

PaperOrganismsRecords
Molecular evolution by change of function. Alkaloid-specific homospermidine synthase retained all properties of deoxyhypusine synthase except binding the eIF5A precursor proteinSenecio vernalis10

Records

EnzymeOrganismSubstratekcat (s⁻¹)Km (mM)kcat/Km (mM⁻¹ s⁻¹)ConditionsPaper
homospermidine synthaseSenecio vernalisN-(3-aminopropyl)tetramethylene-1,4-diaminefixed putrescine 40 µM—0.014—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisN-(3-aminopropyl)tetramethylene-1,4-diaminefixed putrescine 400 µM—0.085—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisN-(3-aminopropyl)tetramethylene-1,4-diaminefixed putrescine 1000 µM—0.115—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisN-(4-aminobutyl)tetramethylene-1,4-diaminefixed putrescine 40 µM—0.007—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisN-(4-aminobutyl)tetramethylene-1,4-diaminefixed putrescine 400 µM—0.063—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisN-(4-aminobutyl)tetramethylene-1,4-diaminefixed putrescine 1000 µM—0.148—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisputrescine[14C]putrescine as labeled substrate; fixed spermidine 40 µM—0.137—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisputrescine[14C]putrescine as labeled substrate; apparent Km; Table II—0.176—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisputrescine[14C]putrescine as labeled substrate; apparent Km; Table II—0.196—pH 9.25, 30 °CPMID 12562768Open
homospermidine synthaseSenecio vernalisputrescine400 µM [14C]putrescine; 400 µM spermidine; kcat per subunit0.032——pH 9.25, 30 °CPMID 12562768Open