作者: Göran Baurén , Gustav Rodrigo , Tomas Björkman , Mats Ander
DOI:
关键词: Biochemistry 、 Protein A 、 Protein Z 、 Glutamine 、 Mutant 、 Amino acid 、 Immunoglobulin binding 、 Molecular biology 、 Biology 、 Residue (chemistry) 、 Asparagine
摘要: The invention discloses a polypeptide with improved alkaline stability, which comprises mutant of B or C domain Staphylococcus Protein A (SpA), as specified by SEQ ID NO 1 2, Z, 3, wherein at least the glutamine residue position 9 has been mutated to an amino acid other than asparagine. also multimers said polypeptide, well separation matrices comprising polypeptides.