Analysis of the Arabidopsis rsr4-1/pdx1-3 Mutant Reveals the Critical Function of the PDX1 Protein Family in Metabolism, Development, and Vitamin B6 Biosynthesis(W)

From: Plant Cell | Date: July 1, 2006| Author: Wagner, Susan; Bernhardt, Anne; Leuendorf, Jan Erik; Drewke, Christel; Et al | Copyright information

Vitamin B6 represents a highly important group of compounds ubiquitous in all living organisms. It has been demonstrated to alleviate oxidative stress and in its phosphorylated form participates as a cofactor in >100 biochemical reactions. By means of a genetic approach, we have identified a novel mutant, rsr4-1 (for reduced sugar response), with aberrant root and leaf growth that requires supplementation of vitamin B6 for normal development. Cloning of the mutated gene revealed that rsr4-...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

AMINO ACID ALSO PLAYS ROLE IN CLOGGED ARTERIES.(LIVING)
The Cincinnati Post (Cincinnati, OH) ; Q. I heard that something called homocysteine can cause problems with arteries. What is it? A. Homocysteine is an amino acid produced in the liver during the breakdown of proteins you eat. Most homocysteine is either recycled back into the amino acid methionine, which it started out as, or it
Vitamin B-6 normalizes the altered sulfur amino acid status of rats fed diets containing pharmacological levels of niacin without reducing niacin's hypolipidemic effects
The Journal of Nutrition ; Vitamin B-6 Normalizes the Altered Sulfur Amino Acid Status of Rats Fed Diets Containing Pharmacological Levels of Niacin without Reducing Niacin's Hypolipidemic Effects 1,2,3 Tapan K. Basu4 and Sarabjit Mann Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton,
Epinephrine transiently increase amino acid disappearance to lower amino acid levels in humans
JPEN, Journal of Parenteral and Enteral Nutrition ; ABSTRACT. Background: Infusion of epinephrine decreases plasma amino acid concentrations. However, the mechanism by which this decrement occurs is not well characterized. Methods: Epinephrine was infused (40 ng/kg/min) for 2 hours into eight normal healthy adults. The essential amino acid tracers
HEALTH WATCH: alternative path - Amino acid may ease angina.(Features)
The News Letter (Belfast, Northern Ireland) ; Byline: DR FINBAR MAGEE THERE are so many types of nutritional products now that you could spend all your time reading about them without seeing any patients! In fact a huge range of cardiovascular products leaves it difficult to prioritise and enable the best choice. This is further complicated by
Amino acid pharmacokinetics and safety assessment1
The Journal of Nutrition ; ABSTRACT Tracer kinetic studies of amino acid metabolism during periods of high amino acid intake should allow insights into adaptive or maladaptive regulatory mechanisms controlling amino acid catabolic or disposal events before clinically evident effects. The principles of amino acid tracer