FIG. 2.

(A) Map showing the relative locations of ORFs in the malR gene area. The position of the transposon insertion in mutant BTMAL is indicated by the vertical arrow above the map. DNA segments used to make insertional disruptions are shown as horizontal lines under the map and marked with an “Ω.” The sizes of the DNA fragments used to make the disruptions are also indicated under the lines. gs, putative glutamine synthetase gene; malR, putative regulatory protein gene; β-nagA, putative β-N-acetylglucosaminidase gene. (B) Deduced amino acid sequence of malR. A possible carboxy-terminal helix-turn-helix motif is underlined. The vertical arrow indicates the transposon insertion site in the transposon-generated mutant, BTMAL.