NADPH-dependent metabolism of the ribulose bisphosphate carboxylase/oxygenase inhibitor 2-carboxyarabinitol 1-phosphate (cas 106777-19-9) by a chloroplast protein

Add time:08/04/2019    Source:sciencedirect.com

Metabolism of 2-carboxyarabinitol 1-phosphate (cas 106777-19-9) (CA 1-P), an endogenous inhibitor of ribulose bisphosphate carboxylase/oxygenase, occurs in the light. A soluble protein fraction which metabolized CA 1-P in the presence of NADPH was isolated from tobacco chloroplasts. A similar fraction from spinach exhibited much lower activity. The activity in tobacco extracts was stable overnight at 4°C but its maintenance during storage required dithiothreitol. The tobacco protein responsible for CA 1-P metabolism was partially purified by ion-exchange FPLC of stromal extracts. The requirements for NADPH and dithiothreitol for activity of this protein suggest a mechanism for the light-dependent control of CA 1-P levels in plants.

We also recommend Trading Suppliers and Manufacturers of 2-carboxyarabinitol 1-phosphate (cas 106777-19-9). Pls Click Website Link as below: cas 106777-19-9 suppliers

Prev:Different location in dark-adapted leaves of Phaseolus vulgaris of ribulose-1,5-bisphosphate carboxylase/oxygenase and 2-carboxyarabinitol 1-phosphate (cas 106777-19-9)
Next:Distribution of 2-carboxyarabinitol among plants)