Peptide sequence: MAAAVAMETD DAGNRLRFQL ELEFVQCLAN PNYLNFLAQR GYFKDKAFVN Sequence homology: Cow: 100%; Dog: 100%; Guinea Pig: 100%; Horse: 100%; Human: 100%; Mouse: 100%; Rabbit: 100%; Rat: 100%. MED31 is the component of the Mediator complex, a coactiva