passages.id: split_6_test_1485_passage
passages.type: progene_text
passages.text: The yeiL open reading frame located at 48.5 min ( 2254 kb ) in the nfo - fruA region of the Escherichia coli chromosome was predicted to encode a CRP and FNR paralogue capable of forming inter - or intra - molecular disulphide bonds and incorporating one iron - sulphur centre per 25 kDa subunit .