>sp|Q9CYZ6|REX1B_MOUSE Required for excision 1-B domain-containing protein OS=Mus musculus GN=Rex1bd MLTAATEVLAAADGPGSAESAWAWRDAPIATLVQRIQQLQNERAQAFRRLDQAHRQYLLS GQHYDFPSYRSVVHEVTQAFAAASREVLAVEAELAGPRAQPVLARHVRSLQELEQTRLAT VALLQVMGTPGVSEQDPEKLHQLKIKVIKTMEAIGEVLQELRFDAESAE