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citrulline

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
citrulline /cit·rul·line/ (sit´rul-ēn) an alpha-amino acid involved in urea production; formed from ornithine and itself converted into arginine in the urea cycle.
cit·rul·line (str-ln)
n.
An amino acid produced as an intermediate in the conversion of ornithine to arginine during urea formation in the liver.

citrulline
[sitrul′ēn]
Etymology: L, Citrullus, watermelon
an amino acid produced from ornithine during the urea cycle. It is subsequently transformed to arginine by the transfer of a nitrogen atom from aspartate.

citrulline [sit-rul´ēn]
an alpha amino acid involved in the urea cycle.

citrulline
an alpha amino acid involved in the urea cycle.

citrulline phosphorylase
see ornithine carbamoyl transferase.


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Some of the amino acids used in these formulations include L-arginine, along with citrulline and other vitamin/mineral co-factors.
The urea cycle consists of five reactions, and citrulline is formed in the second of these.
It is biosynthesized from L-arginine and oxygen to citrulline by several nitric-oxide synthases, or NOS, enzymes and by the reduction of inorganic nitrate.
 
 
 
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