>gnl|mdb|bmrb4128:1 cyanobacterial metallothionein gene repressor TKPVLQDGETVVCQGTHAAIASELQAIAPEVAQSLAEFFAVLADPNRLRLLSLLARSELCVGDLAQAIGVSESAVSHQLR SLRNLRLVSYRKQGRHVYYQLQDHHIVALYQNALDHLQECR