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75387 Ensembl ENSG00000089163 ENSMUSG00000029524 UniProt Q9Y6E7 Q8R216 RefSeq (mRNA) NM_012240 NM_001385733 NM_001385734 NM_001385735 NM_001167691 NM_133760 RefSeq (protein) NP_036372 NP_001161163 NP_598521 Location (UCSC) Chr 12: 120.3 – 120.31 Mb Chr 5: 115.48 – 115.48 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Sirtuin 4, also known as SIRT4, is a mitochondrial protein ...
Unlike other known protein deacetylases, which simply hydrolyze acetyl-lysine residues, the sirtuin-mediated deacetylation reaction couples lysine deacetylation to NAD+ hydrolysis. [12] This hydrolysis yields O-acetyl-ADP- ribose , the deacetylated substrate and nicotinamide , which is an inhibitor of sirtuin activity itself.
One of the cell populations is fed with growth medium containing normal amino acids. In contrast, the second population is fed with growth medium containing amino acids labeled with stable (non-radioactive) heavy isotopes. For example, the medium can contain arginine labeled with six carbon-13 atoms (13 C) instead of the normal carbon-12 (12 C ...
The abundance of 15 N in some amino acids reflects an organism's position in a food web. This is due to the ways organisms metabolize different amino acids when they are consumed. Trophic amino acids (TrAAs) are first deaminated, meaning that the amino group is removed to produce an alpha-keto acid carbon skeleton.
The Ser residue is generally in the sequence -Ser-Gly-X-Gly- (where X can be any amino acid residue but proline), although not every protein with this sequence has an attached glycosaminoglycan. The chains are long, linear carbohydrate polymers that are negatively charged under physiological conditions due to the occurrence of sulfate and ...
Serine (symbol Ser or S) [3] [4] is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated − NH +3 form under biological conditions), a carboxyl group (which is in the deprotonated − COO −
Proteins catabolize into amino acids, and amino acids are precursors for purines, nucleotides and nucleosides which are used in the purine nucleotide cycle. [7] The amino acid glutamate is used to neutralize the ammonia produced when AMP is converted into IMP. Another amino acid, aspartate, is used along with IMP to produce S-AMP in the cycle ...
Aromatic amino acids, in turn, are precursors for many biosynthetic pathways, including the lignin in wood. [citation needed] Dietary pentose sugars derived from the digestion of nucleic acids may be metabolized through the pentose phosphate pathway, and the carbon skeletons of dietary carbohydrates may be converted into glycolytic ...