摘要 |
Plasmid comprising a DNA tag encoding a peptide tag of the sequence MX1(X2X3)n wherein X1 represents K, R or H; X2 represents A, G, H, M, S or T; X3 represents K, R, H, A, Q or V; n represents an integer of 1 or larger; and wherein said DNA is operably-linked to a promoter sequence are provided.
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