1. Lactacystin modifies the amino-terminal threonine of specific proteasome subunits. 2. High levels of threonine result in low levels of homoserine synthesis. 3. It catalyzes its autophosphorylation on serine / threonine and tyrosine residues. 4. Cytokine-inducible kinase is a putative serine / threonine kinase. 5. Phosphatases from the Cdc25 family dephosphorylate both the threonine and the tyrosine. 6. Phosphorylating a serine or threonine residue on its target substrate. 7. They bind the ATPases'C-terminus at a conserved threonine . 8. The structural feature that governs this autoinhibition is the Threonine 286 residue. 9. Aspartate can be converted into lysine, asparagine, methionine and threonine . 10. These threonine -insensitive forms of HSD are used in nutritional value.
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