HEADER METAL TRANSPORT 31-DEC-69 6K43 COMPND MOL_ID: 1; COMPND 2 MOLECULE: Bacterioferritin; COMPND 3 CHAIN: A, B, C, D, F, E, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X; COMPND 4 EC: 1.16.3.1; COMPND 5 ENGINEERED: YES; EXPDTA ELECTRON MICROSCOPY