>tr|Q56446 MERCURIC ION TRANSPORT PROTEIN - Pseudomonas fluorescens, Xanthomonas sp., Comamonas testosteroni (Pseudomonas testosteroni), Citrobacter freundii, and Escherichia coli. MKDPKTLLRVSIIGTTLVALCCFTPVLVILLGVVGLSALTGYLDYVLLPALAIFIGLTIYAIQRKRQADACCTPKFNGVK K