>sp|P04129|MERP_SHIFL Mercuric transport protein periplasmic component OS=Shigella flexneri OX=623 GN=merP PE=1 SV=1 MKKLFASLALAAAVAPVWAATQTVTLAVPGMTCAACPITVKKALSKVEGVSKVDVGFEKR EAVVTFDDTKASVQKLTKATADAGYPSSVKQ