We were able to show that HPA008819 binds both PEBP1 peptide and the recombinant protein (Figure E in S2 File) and that HPA008819 can detect PEBP1 in plasma samples from MS patients and recombinant protein in a concentration dependent manner (Figure E in S2 File). The gene discussed is PEBP1; the disease is myeloid sarcoma.