The present invention concerns a method of humanising antigen binding proteins and fragments. The invention particularly concerns a method of humanising antibodies, in particular those which specifically bind Oncostatin M (OSM), particularly human OSM (hOSM) and which inhibit the binding of OSM to the gp130 receptor but does not directly interact with site II residues. Further disclosed are antigen binding proteins produced by such methods pharmaceutical compositions, screening and medical treatment methods.本発明はオンコスタチンM(OSM)、特にヒトOSM(hOSM)と特異的に結合しかつOSMのgp130との結合を阻害するが、部位II残基と直接相互作用しない抗原結合タンパク質およびそのフラグメントに関する。本発明はまた、ヒト化抗体の方法にも関する。さらに、医薬組成物、スクリーニングおよび医療の方法を開示する。【選択図】 図1