MED9 GI:8922273 mediator complex subunit 9 1 masagvaagr qaedvlppts dqplpdtkpl pppqpppvpa pqpqqspapr 50 51 pqspararee enysflplvh niikcmdkds pevhqdlnal kskfqemrkl 100 101 istmpgihls peqqqqqlqs lreqvrtkne llqkykslcm feipke