Words similar to ornithine
Example sentences for: ornithine
How can you use “ornithine” in a sentence? Here are some example sentences to help you improve your vocabulary:
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).
Cells formed NSs during stages 1 and 2. After 2 wk, we transferred 40–80 NSs containing a total of approximately 2–4 × 10 5 cells to single wells in plates coated with 0.005% poly-L-ornithine (Sigma) and 3 μg/ml fibronectin (Invitrogen).
When Jesse Gelsinger, a relatively healthy young adult, died in Philadelphia during a clinical trial of a novel adenovirus-based genetic therapy for ornithine transcarbamylase deficiency, it was a tragedy [1].
Az was previously identified as a polyamine-inducible factor that binds and targets the ornithine decarboxylase (ODC) to proteasome for degradation [ 18 45 ] . Until now, ODC is the only protein known to be targeted by Az to proteasome, although the existence of additional proteins targeted by Az to proteasome has been suspected [ 20 ] . We now find two new Az interactors: Smad1, the key signal transducer of BMPs, as well as SNIP1, the nuclear repressor of CBP/p300.
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.
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