passages.id: split_1_test_3078_passage
passages.type: progene_text
passages.text: The PTS - dependent kinase of Escherichia coli consists of three subunits : DhaK contains the Dha binding site , DhaL contains ADP as cofactor for the double displacement of phosphate from DhaM to Dha , and DhaM provides a phospho - histidine relay between the PTS and DhaL : : ADP .