TITLE     (h-alpha2M)4 native II
COMPND    MOL_ID: 1;
COMPND   2 MOLECULE: Alpha-2-macroglobulin;
COMPND   3 CHAIN: A, B, C, D;
EXPDTA     ELECTRON MICROSCOPY
DBREF  7O7M D    1  1474  UNP    P01023   A2MG_HUMAN       1   1474