>9gv3_F mol:protein length:143 Nb474 mutant R53A,D125AQVQLQESGGGLVQPGGSLRLSCAASETALTYYAIGWFRQAPGKEREGVSCISAINSGSGARTDYADSVKGRFTISRDDAKNTVTLQMNSLEPEDTARYYCALDTTDRYDSANGRYYCTISSDTYAYWGQGTQVTVSSHHHHHH