Acetylornithine δ-Transaminase
نویسندگان
چکیده
منابع مشابه
Repression of an Acetylornithine Permeation System.
plete mixture of amino acids resulted in a large suppression of the incorporation. The reason for this effect is also unknown. It may be caused by an imbalance of amino acids since, in a cell-free preparation from E. coli, a balanced mixture of amino acids that reflect the composition of E. coli protein is superior to an equimolar mixture of amino acids. Summary.-A system from developing maize ...
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Ornithine transcarbamylase is a highly conserved enzyme in arginine biosynthesis and the urea cycle. In Xanthomonas campestris, the protein annotated as ornithine transcarbamylase, and encoded by the argF gene, is unable to synthesize citrulline directly from ornithine. We cloned and overexpressed this X. campestris gene in Escherichia coli and show that it catalyzes the formation of N-acetyl-L...
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Since research on plant interactions with herbivores and pathogens is often constrained by the analysis of already known compounds, there is a need to identify new defense-related plant metabolites. The uncommon nonprotein amino acid N(δ)-acetylornithine was discovered in a targeted search for Arabidopsis thaliana metabolites that are strongly induced by the phytohormone methyl jasmonate (MeJA)...
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Aspartate and glutamate react instantaneously with the pyridoxal form of the pig heart glutamic aspartic transaminase (1) to yield the corresponding keto acid, converting the enzymebound pyridoxal phosphate to bound pyridoxamine phosphate (2). Other amino acids such as methionine sulfoxide, methionine sulfone, and alanine react much more slowly with the enzyme, but the reaction itself appears t...
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Case 1: Mr F., a 65-year-old man with hypertension and atrial fibrillation, began longterm anticoagulation with warfarin 1 year ago. He presented with a 1-week history of nausea, anorexia, jaundice, and altered mental status. His laboratory workup showed elevated serum transaminases and direct bilirubin. Could warfarin be potentially responsible? Case 2: Mr S., a 75-year-old man with diabetes a...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1964
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)91275-5