<scp>PLP</scp> Homeostasis Protein Is Required for Efficient Maturation of Aromatic Amino Acid Aminotransferase in <i>Salmonella enterica</i>

vitamer PMP, or upregulation of pyridoxal kinase (PdxK). Using TyrB as a target, we provide the first demonstration that YggS of S. enterica can mediate transfer of PLP to a PLP-DE in vitro. In total, this study defines multiple in vivo maturation pathways for TyrB and provides a working model for the role of YggS in the maturation of TyrB.