si_0903 Polymyxin_Synthetase_Gene_Cluster_in_Bacillus Polymyxin synthetase PmxA si_0903 Polymyxin_Synthetase_Gene_Cluster_in_Bacillus Polymyxin synthetase PmxB si_0903 Polymyxin_Synthetase_Gene_Cluster_in_Bacillus Polymyxin transporter PmxC si_0903 Polymyxin_Synthetase_Gene_Cluster_in_Bacillus 4'-phosphopantetheinyl transferase (EC 2.7.8.-) in polymyxin biosynthetic cluster si_0903 Polymyxin_Synthetase_Gene_Cluster_in_Bacillus Uncharacterized protein in polymyxin biosynthetic cluster