passages.id: split_5_test_341_passage
passages.type: progene_text
passages.text: Analysis of axial proteins secreted into the culture medium by the original P. mirabilis flgN mutant demonstrated that export of FlgK and FlgL was specifically reduced , with concomitant increased release of unpolymerized flagellin ( FliC ) , the immediately distal component of the flagellum .