>tr|A0A254NA95|A0A254NA95_9BURK Periplasmic mercury ion-binding protein OS=Pelomonas puraquae GN=merP MKKLFASLALAAFVAPVFAATQTVTLSVPGMTCASCPITVKHALSKVEGVSKTDVSFDKR QAVVTFDDAKTNVQKLTKATEDAGYPSSLKR