21. It was long believed that serine / threonine kinases played different FHA domains. 22. This enzyme participates in glycine, serine and threonine metabolism and glycerophospholipid metabolism. 23. It is transcriptionally induced by the presence of L serine and L threonine . 24. Serine and threonine are amino acids of similar composition. 25. It is formed by the fluorothreonine transaldolase catalysed transfer of fluoroacetaldehyde onto threonine . 26. In addition, threonine residues undergo phosphorylation through the action of a threonine kinase. 27. In addition, threonine residues undergo phosphorylation through the action of a threonine kinase. 28. Corynebacterium " species produce lysine, threonine , tryptophan and other amino acids. 29. Endoglin is constituitively phosphorylated at the serine and threonine residues in the cytoplasmic domain. 30. Aurora A is a member of a family of mitotic serine / threonine kinases.
