>3IUX_1|Chains A, C|E3 ubiquitin-protein ligase Mdm2|null ETLVRPKPLLLKLLKSVGAQKDTYTMKEVLFYLGQYIMTKRLYDEKQQHIVYCSNDLLGDLFGVPSFSVKEHRKIYTMIYRNLVV >3IUX_2|Chains B, D|miniature protein inhibitor|null CNCKAPETFLCYWRCLQH