Figure 1From: Transcriptional control by two leucine-responsive regulatory proteins in Halobacterium salinarum R1Arrangement of lrp and asp genes in halophilic organisms. In H. salinarum lrpA1 and aspB3 have separate promoters and the genes are orientated in opposite directions. lrp and asp in N. pharaonis, H. marismortui and H. walsbyi have one promoter and their open reading frames overlap.Back to article page