Methionine or folate and phosphoenolpyruvate in the biosynthesis of threonine in Crithidia fasciculata.
D000409:Alanine / Q000302:isolation & purification; D002247:Carbon Isotopes; D002474:Cell-Free System; D002854:Chromatography, Paper; D003470:Culture Media; D003553:Cystine / Q000302:isolation & purification; D056890:Eukaryota / Q000378:metabolism*; D005492:Folic Acid / Q000378:metabolism*; D006710:Homocysteine / Q000302:isolation & purification; D006714:Homoserine / Q000302:isolation & purification; D006835:Hydrazones; D006885:Hydroxybutyrates / Q000302:isolation & purification; D007651:Keto Acids / Q000302:isolation & purification; D008715:Methionine / Q000378:metabolism*; D008780:Methyltransferases / Q000378:metabolism; D010728:Phosphoenolpyruvate / Q000378:metabolism*; D013451:Sulfonic Acids / Q000302:isolation & purification; D013460:Sulfur Isotopes; D013912:Threonine / Q000096:biosynthesis*
D002247:Carbon Isotopes; D003470:Culture Media; D006835:Hydrazones; D006885:Hydroxybutyrates; D007651:Keto Acids; D013451:Sulfonic Acids; D013460:Sulfur Isotopes; D006710:Homocysteine; D013912:Threonine; D003553:Cystine; D006714:Homoserine; D010728:Phosphoenolpyruvate; D005492:Folic Acid; D008715:Methionine; D008780:Methyltransferases; D000409:Alanine