>tr|P73808|P73808_SYNY3 Arsenical resistance operon repressor OS=Synechocystis sp. GN=arsA MKTTEKDLISVGFQALSDPIRLQVLTLLENQEQCVCDLCDQLNISQSKLSFHLKRLRDAE LVHTRQDGRWIYYRLNPEQFHHLRHYLESYGQVTQAYVPRHCCD