Immunogen sequence: KRDCVKGSAT PSGQESRTAP GEARKAATLP EMSAGEESSS SDSDPDSASP PSTGQNPSVS VQTSQDWKPT RSLIEHVFVT DVTANLITVT VKESPTSV. MED18 is a component of the Mediator complex, which is a coactivator for DNA-binding factors that activate transcription via