A cyclic derivative of L-citrulline.
D000594:Amino Acid Oxidoreductases / Q000378:metabolism; D002956:Citrulline / Q000378:metabolism*; D005559:Formamides / Q000096:biosynthesis; D013058:Mass Spectrometry; D011758:Pyrroles / Q000096:biosynthesis*
D005559:Formamides; D011758:Pyrroles; D002956:Citrulline; D000594:Amino Acid Oxidoreductases