HEADER VIRAL PROTEIN/TRANSFERASE 31-DEC-69 7ELL TITLE In situ structure of capping enzyme lambda2, penetration protein mu1 TITLE 2 of mammalian reovirus capsid asymmetric unit. COMPND MOL_ID: 2; COMPND 2 MOLECULE: Mu1; COMPND 3 CHAIN: a, b, c, d, e, f, g, h, i, j; EXPDTA ELECTRON MICROSCOPY