>sp|Q9NQW1-3|SC31B_HUMAN Isoform 3 of Protein transport protein Sec31B OS=Homo sapiens OX=9606 GN=SEC31B MKLKELERPAVQAWSPASQYPLYLATGTSAQQLDSSFSTNGTLEIFEVDFRDPSLDLKHR GVLSALSRATSWLQGPAILKSSLGI