Abstract:
:The sulfur-containing amino acid methionine is a nutritionally important essential amino acid and is the precursor of several metabolites that regulate plant growth and responses to the environment. Methionine production is largely regulated by cystathionine gamma-synthase, the first specific enzyme for its synthesis. This enzyme competes in a complex manner with threonine synthase, the last enzyme in threonine biosynthesis, for their common substrate O-phosphohomoserine. New genetic and molecular data suggest that methionine synthesis and catabolism are coordinately regulated by novel post-transcriptional and post-translational mechanisms that are associated with a regulatory part within the N-terminal part of cystathionine gamma-synthase.
journal_name
Trends Plant Scijournal_title
Trends in plant scienceauthors
Amir R,Hacham Y,Galili Gdoi
10.1016/s1360-1385(02)02227-6subject
Has Abstractpub_date
2002-04-01 00:00:00pages
153-6issue
4eissn
1360-1385issn
1878-4372pii
S1360138502022276journal_volume
7pub_type
杂志文章abstract::Gating of K(+) and other ion channels is 'hard-wired' within the channel protein. So it remains a puzzle how closely related channels in plants can show an unusually diverse range of biophysical properties. Gating of these channels lies at the heart of K(+) mineral nutrition, signalling, abiotic and biotic stress resp...
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