Merck

Analysis of the aspartic acid metabolic pathway using mutant genes.

Amino acids (2002-06-27)
R A Azevedo
ABSTRACT

Amino acid metabolism is a fundamental process for plant growth and development. Although a considerable amount of information is available, little is known about the genetic control of enzymatic steps or regulation of several pathways. Much of the information about biochemical pathways has arisen from the use of mutants lacking key enzymes. Although mutants were largely used already in the 60's, by bacterial and fungal geneticists, it took plant research a long time to catch up. The advance in this area was rapid in the 80's, which was followed in the 90's by the development of techniques of plant transformation. In this review we present an overview of the aspartic acid metabolic pathway, the key regulatory enzymes and the mutants and transgenic plants produced for lysine and threonine metabolism. We also discuss and propose a new study of high-lysine mutants.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
L-天冬氨酸, reagent grade, ≥98% (HPLC)
Sigma-Aldrich
L-天冬氨酸, from non-animal source, meets EP, USP testing specifications, suitable for cell culture, 98.5-101.0%
Sigma-Aldrich
L-天冬氨酸, BioXtra, ≥99% (HPLC)
Sigma-Aldrich
L-天冬氨酸, BioUltra, ≥99.5% (T)
SAFC
L-天冬氨酸
天冬氨酸, European Pharmacopoeia (EP) Reference Standard
Supelco
L-天冬氨酸, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
L-天冬氨酸, ≥98%, FG
Supelco
L-天冬氨酸, certified reference material, TraceCERT®