Patent ID: 7309488

Claim:
An adsorbent for an antibody against β1-adrenoceptor and/or an antibody against M2 muscarinic receptor which comprises a water-insoluble carrier, and a compound having a binding affinity for an antibody against β1-adrenoceptor and/or an antibody against M2 muscarinic receptor, in which said compound is immobilized on the water-insoluble carrier, and in which said compound having a binding affinity for an antibody against β1-adrenoceptor and/or an antibody against M2 muscarinic receptor is at least one peptide selected from the group consisting of Trp Gly Arg Trp Glu Tyr Gly Ser Phe Phe Cys Glu Leu (SEQ ID NO: 1), Glu Tyr Gly Ser Phe Phe (SEQ ID NO:2), Ser Phe Phe Cys Glu Leu (SEQ ID NO:3), Arg Ala Glu Ser Asp Glu Ala Arg Arg Cys Tyr Asn Asp Pro Lys Cys Cys Asp Phe Val Thr Asn Arg (SEQ ID NO:4), Val Lys Ala Phe His Arg Glu Leu Val Pro Asp (SEQ ID NO:5), Ala Arg Arg Cys Tyr Asn Asp (SEQ ID NO:6), Pro Lys Cys Cys Asp Phe (SEQ ID NO:7), and Val Arg Thr Val Glu Asp Gly Glu Cys Tyr Ile Gln Phe Phe Ser Asn Ala Ala Val Thr Phe Gly Thr Ala Ile (SEQ ID NO:8).