>sp|P11836-2|CD20_HUMAN Isoform 2 of B-lymphocyte antigen CD20 OS=Homo sapiens OX=9606 GN=MS4A1 MTTPRNSVNGTFPAEPMKGPIAMQSGPKPLFRRMSSLELVIAGIVENEWKRTCSRPKSNI VLLSAEEKKEQTIEIKEEVVGLTETSSQPKNEEDIEIIPIQEEEEEETETNFPEPPQDQE SSPIENDSSP