Lser
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Increased Glutathione Biosynthesis Plays a Role in Nickel Tolerance in Thlaspi Nickel HyperaccumulatorsW⃞
Worldwide more than 400 plant species are now known that hyperaccumulate various trace metals (Cd, Co, Cu, Mn, Ni, and Zn), metalloids (As) and nonmetals (Se) in their shoots. Of these, almost one-quarter are Brassicaceae family members, including numerous Thlaspi species that hyperaccumulate Ni up to 3% of there shoot dry weight. We observed that concentrat
American Society of Plant Biologists.
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14. Adjuvant Activities in Production of Reaginic Antibody by Bacterial Cell Wall Peptidoglycan or Synthetic N-Acetylmuramyl Dipeptides in Mice
This paper is concerned with the adjuvant activity in stimulatory immunoglobulin E production against ovalbumin (OA) by bacterial cell walls, cell wall peptidoglycan (PG), and their PG fragments and synthetic N-acetylmuramyl (MurNAc) dipeptides in A/J mice. A PG isolated from Streptococcus pyogenes, PG subunit polymer and dimer obtained from Staphylococcus e
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15. The External Aldimine Form of Serine Palmitoyltransferase: STRUCTURAL, KINETIC, AND SPECTROSCOPIC ANALYSIS OF THE WILD-TYPE ENZYME AND HSAN1 MUTANT MIMICS*
Sphingolipid biosynthesis begins with the condensation of l-serine and palmitoyl-CoA catalyzed by the PLP-dependent enzyme serine palmitoyltransferase (SPT). Mutations in human SPT cause hereditary sensory autonomic neuropathy type 1, a disease characterized by loss of feeling in extremities and severe pain. The human enzyme is a membrane-bound hetereodimer,
American Society for Biochemistry and Molecular Biology.
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16. Characterization and Expression Analysis of a Serine Acetyltransferase Gene Family Involved in a Key Step of the Sulfur Assimilation Pathway in Arabidopsis1
Ser acetyltransferase (SATase; EC 2.3.1.30) catalyzes the formation of O-acetyl-Ser from l-Ser and acetyl-CoA, leading to synthesis of Cys. According to its position at the decisive junction of the pathways of sulfur assimilation and amino acid metabolism, SATases are subject to regulatory mechanisms to control the flux of Cys synthesis. In Arabidopsis (Arab
American Society of Plant Biologists.
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17. Purification and properties of glutamine synthetase from the non-N2-fixing cyanobacterium Phormidium laminosum.
Soluble glutamine synthetase activity (L-glutamate:ammonia ligase, ADP forming, EC 6.3.1.2) was purified to electrophoretic homogeneity from the filamentous non-N2-fixing cyanobacterium Phormidium laminosum (OH-1-p.Cl1) by using conventional purification procedures in the absence of stabilizing ligands. The pure enzyme showed a specific activity of 152 mumol