The recombinant plasmids pQE-30/BCOADC-E2, pQE-30/PDC-E2, pQE-30/OGDC-E2 and pQE-30/BPO were transformed into plasmid E.

• 7例M2阳性的血清中，抗BCOADC-E2抗体、抗PDC-E2抗体、抗OGDC-E2抗体单独阳性的各一例，抗BCOADC-E2抗体、抗PDC-E2抗体同时阳性的3例，抗PDC-E2抗体、抗OGDC-E2抗体同时阳性的1例。