Words similar to polyamine
Example sentences for: polyamine
How can you use “polyamine” in a sentence? Here are some example sentences to help you improve your vocabulary:
GSPS is a bifunctional enzyme: its synthase domain carries out the ATP-dependent fusion of two glutathione moieties to the polyamine spermidine to form the antioxidant metabolite GSP, while its amidase domain hydrolyzes the amide linkage to release glutathione and spermidine [ 26, 55, 56].
Primary cultures were prepared from hind limbs of day 18 embryos (E18) as described previously [ 23 ] . cDNAs of interest and a separate expression vector encoding the T-cell membrane antigen CD8 were subcloned into the mammalian expression vector pSG5 (Stratagene, CA) and were mixed and cotransfected with the polyamine LT-1 (Panvera, WI).
The 26S proteasome is responsible for the bulk turnover of cytoplasmic and nuclear proteins in eukaryotic cells and also plays a key role in the regulation of cell cycle, signal transduction, transcription as well as antigen presentation [ 17 18 19 20 21 ] . Most of the known proteasomal substrates are marked and targeted to proteasome by ubiquitination [ 17 19 20 ] . Ubiquitination, however, is not an obligatory step for substrate targeting to proteasome [ 17 18 20 ] . The degradation of the ornithine decarboxylase (ODC), the rate-limiting enzyme for polyamine synthesis, involves a protein named antizyme (Az), which binds and targets ODC to 26S proteasome for degradation [ 18 ] . However, ODC has remained an "orphan" in Az-dependent proteasomal degradation.
The availability of the crystal structure for the polyamine oxidase from maize allowed us to evaluate the sequence conservation of the oxidoreductase domain fused to the SWIRM domains [ 45, 46].
The transcript encoding ornithine decar-boxylase (ODC), a known androgen target that catalyzes the rate-limiting step in polyamine biosynthesis [ 26], was induced coordinately with enzymes that catalyze downstream steps in polyamine synthetic pathway (spermine synthase, spermidine/spermine N 1-acetyltransferase, and S-adenosylmethionine decarboxylase) (Figure 5c).
Loading...