Immunogenic composition comprising variants of Staphylococcal clumping factor A

摘要

The present invention relates to ClfA polypeptides wherein amino acid Y474 or an amino acid adjacent to Y474 is mutated such that fibrinogen binding activity is decreased compared to an equivalent ClfA polypeptide without mutation of Y474 or an amino acid adjacent to Y474 as well as immunogenic compositions, vaccines, processes and uses of such mutated ClfA polypeptides.