Sedoheptulose in Coleus

Sedoheptulose in Coleus.

Sedoheptulose kinase regulates cellular carbohydrate metabolism by sedoheptulose 7-phosphate supply.

Dynamic carbon re-routing between catabolic and anabolic metabolism is an essential element of cellular transformation associated with tumour formation and immune cell activation. Such bioenergetic adaptations are important for cellular function and therefore require tight control. Carbohydrate phosphorylation has been proposed as a rate-limiting step of several metabolic networks. The recent i...

Diastereomeric diterpenes from Coleus blumei.

The chloroform extract of the air-dried leaves of Coleus blumei afforded a mixture of diastereomers of a new abietane type diterpene whose structures were elucidated by extensive one and two dimensional (ID, 2D) NMR and mass spectrometry. Acetylation of the mixture afforded a single compound. Antimicrobial tests on the diterpene indicate that it is active against Bacillus subtilis, Pseudomonas ...

Auxin transport in explants of coleus.

alpha-Naphthaleneacetic acid-C(14), labeled in the carboxyl group, was applied in blocks of agar to the distal and to the proximal (either apical or basal) ends of explants of Coleus. The radioactivity in receiver blocks at the opposite ends was measured. Acropetal transport was slight, only 4% of the basipetal transport.Translocation of NAA-C(14) was polar in basipetal direction. Only 1.4% of ...

The natural occurrence of sedoheptulose monophosphate in liver.

Our present inter& in the metabolism of sedoheptulose originated unexpectedly from the discovery of its monophosphate as a product of incubation of rat liver supernatant and adenosine (I). In the course of this work, a process was devised for isolating the sedoheptulose monophosphate product and for preparing from it, scdohcptulosan, in pure crystalline form. The principles which were the basis...