>tr|E9PU21|E9PU21_RAT DNA-binding protein inhibitor ID-4 OS=Rattus norvegicus GN=Id4 MKAVSPVRPSGRKAPSGCGGGELALRCLAEHGHSLGGSAAAAAAAAAARCKAAEAAADEP ALCLQCDMNDCYTRLRRLVPTIPPNKKVSKVEILQHVIDYILDLQLALETHPALLRQPPP PAPPLHSAGACPVAPQRTPLTALNTDPAGAVNKQGDSILCR