Application | Comment | Organism |
---|---|---|
analysis | development of a CPS1-reporter system for the assessment of ammonia metabolism. Labeling of CPS1 gene in cell lines HepG2, and LO2, with fluorescence protein. Cellular detoxification enhancers are selected among a collection of 182 small molecules. In both CPS1 reporter cell lines, the fluorescence intensity is positively correlated with cellular CPS1 mRNA expression, ammonia elimination and secreted urea, and reflects ammonia detoxification in a dose-dependent manner | Homo sapiens |
Crystallization (Comment) | Organism |
---|---|
structures of CPS1 in the absence and in the presence of N-acetyl-L-glutamate. N-acetyl-L-glutamate binds at the C-terminal domain of CPS1 and triggers long-range conformational changes affecting the two distant phosphorylation domains. The changes, concerted with the binding of nucleotides, result in a remodeling that stabilizes the catalytically competent conformation and the building of an about 35 A long tunnel that allows migration of the carbamate intermediate to the second phosphorylation site, where carbamoyl phosphate is produced | Homo sapiens |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Homo sapiens | P31327 | - |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
Hep-G2 cell | - |
Homo sapiens | - |
LO-2 cell | - |
Homo sapiens | - |
Synonyms | Comment | Organism |
---|---|---|
CPS1 | - |
Homo sapiens |
General Information | Comment | Organism |
---|---|---|
physiological function | labeling of CPS1 gene in cell lines HepG2, and LO2, with fluorescence protein. In both CPS1 reporter cell lines, the fluorescence intensity is positively correlated with cellular CPS1 mRNA expression, ammonia elimination and secreted urea, and reflects ammonia detoxification in a dose-dependent manner. High-level CPS1 reporter clones also reserve other critical hepatocellular functions, for example albumin secretion and cytochrome 450 metabolic functions. Sodium phenylbutyrate and resveratrol enhance metabolism-related gene expression and liver-enriched transcription factors C/EBPalpha, HNF4alpha | Homo sapiens |