>tr|H0YKS0|H0YKS0_HUMAN Proteasome 20S subunit alpha 4 OS=Homo sapiens GN=PSMA4 MCPSLYPRYLLQYQEPIPCEQLVTALCDIKQAYTQFGGKRPFGVSLLYIGWDKHYGFQLY QSDPSGNYGGWKATCIGNNSAAAVSMLKQDYKEGEMTLKSALALAIKVLNKTMDVSKLSA EK