>tr|A0A0S2Z545|A0A0S2Z545_HUMAN Mediator of RNA polymerase II transcription subunit 21 OS=Homo sapiens OX=9606 GN=MED21 PE=1 SV=1 MADRLTQLQDAVNSLADQFCNAIGVLQQCGPPASFNNIQTAINKDQPANPTEVSFSRVCP AFCSTDCTNSKRH