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SDS-PAGE analysis of purified control proteins. 1: Protein marker; 2: Purified HBVc; 3: Expression product of BL21 transformed by pET30-a/HBVc; 4: Expression product of BL21 transformed by pET30-a; 5: Expression product of BL21 transformed by pET30-a/TR; 6. Expression product of BL21 transformed by pET30-a/TRmut; 7: Purified TR; 8: Purified TRmut.
