Record Information
Version1.0
StatusDetected and Quantified
Creation Date2022-04-29 22:45:12 UTC
Update Date2022-12-15 22:52:19 UTC
Metabolite IDMMDBc0049870
Metabolite Identification
Common NameN-Acetyl-L-citrulline
DescriptionN-alpha-Acetyl-L-citrulline, also known as N-acetyl-L-citrulline, N-acetylcitrulline, is an N-acetylated metabolite of citrulline that is part of the arginine biosynthetic pathway. Arginine biosynthesis is notable for its complexity and variability at the genetic level, and by its connection with several other pathways, such as pyrimidine and polyamine biosynthesis, and certain degradative pathways. The initial steps of the arginine biosynthetic pathways proceed via N-acetylated intermediates. The presumed reason for this is that the acetylation prevents the spontaneous cyclization of glutamate derivatives, which leads to proline biosynthesis. N-acetyl-L-ornithine can be transcarbamylated directly by the enzyme acetylornithine transcarbamylase, resulting in N-acetyl-L-citrulline. The enzyme acetylornithine deacetylase can accept N-acetyl-L-citrulline as a substrate and can deacetylate it into citrulline. N-alpha-Acetyl-L-citrulline is found in cases of deficiency of the urea cycle enzyme argininosuccinate synthase (EC 6.3.4.5) that leads to increased concentrations of citrulline and N-acetylcitrulline in the urine (PMID: 14633929 ).
Structure
Synonyms
ValueSource
(2S)-2-(Acetylamino)-5-[(aminocarbonyl)amino]pentanoic acidChEBI
(S)-2-ACETAMIDO-5-ureidopentanoIC ACIDChEBI
(2S)-2-(Acetylamino)-5-[(aminocarbonyl)amino]pentanoateGenerator
(S)-2-ACETAMIDO-5-ureidopentanoateGenerator
N-a-Acetyl-L-citrullineGenerator
N-Α-acetyl-L-citrullineGenerator
N-Acetyl-L-citrullineHMDB
N2-Acetyl-N5-(aminocarbonyl)-L-ornithineHMDB
Nalpha-acetyl-L-citrullineHMDB
Nalpha-acetylcitrullineHMDB
Nα-acetyl-L-citrullineHMDB
Nα-acetylcitrullineHMDB
alpha-N-AcetylcitrullineHMDB
Α-N-acetylcitrullineHMDB
Molecular FormulaC8H15N3O4
Average Mass217.2224
Monoisotopic Mass217.106255983
IUPAC Name(2S)-5-(carbamoylamino)-2-acetamidopentanoic acid
Traditional NameN-acetyl-L-citrulline
CAS Registry NumberNot Available
SMILES
CC(=O)N[C@@H](CCCNC(N)=O)C(O)=O
InChI Identifier
InChI=1S/C8H15N3O4/c1-5(12)11-6(7(13)14)3-2-4-10-8(9)15/h6H,2-4H2,1H3,(H,11,12)(H,13,14)(H3,9,10,15)/t6-/m0/s1
InChI KeyWMQMIOYQXNRROC-LURJTMIESA-N