CatLogenzyme kinetics catalog

Values CatLog read from this paper

Kinetic characterization of human phosphopantothenoylcysteine synthetase

PMID 19683078doi:10.1016/j.bbapap.2009.08.008Open in Browse

The paper itself is not on this site: read it at the publisher. This page lists only the values CatLog read from it.

CatLog read 6 records (7 values) from this paper: phosphopantothenoylcysteine synthetase (PPCS) from Homo sapiens.

Read from the paper by an AI model and checked against the paper by a second, separate AI run; code converted the units. Values are in CatLog's units; each record opens in Browse with the line the paper prints and the checks. CatLog calculated the 1 kcat/Km value marked “calc.” from kcat and Km; no printed kcat/Km was read for that record.

EC 6.3.2.5

EnzymeOrganismSubstratekcat (s⁻¹)Km (mM)kcat/Km (mM⁻¹ s⁻¹)Conditions
phosphopantothenoylcysteine synthetase (PPCS)Homo sapiens(R)-4'-phosphopantothenateATP conditions (A = ATP); cosubstrate ATP, L-cysteine—0.013—pH 7.6, 37 °COpen
phosphopantothenoylcysteine synthetase (PPCS)Homo sapiens(R)-4'-phosphopantothenateCTP conditions (A = CTP); cosubstrate CTP, L-cysteine—0.057—pH 7.6, 37 °COpen
phosphopantothenoylcysteine synthetase (PPCS)Homo sapiensadenosine 5'-triphosphate0.56——pH 7.6, 37 °COpen
phosphopantothenoylcysteine synthetase (PPCS)Homo sapienscytidine 5'-triphosphate0.530.2652.0 calc.pH 7.6, 37 °COpen
phosphopantothenoylcysteine synthetase (PPCS)Homo sapiensL-cysteineATP conditions (A = ATP); ATP—0.014—pH 7.6, 37 °COpen
phosphopantothenoylcysteine synthetase (PPCS)Homo sapiensL-cysteineCTP conditions (A = CTP); CTP—0.016—pH 7.6, 37 °COpen