three infectious virus forms ( two that are occluded in the nucleus and an extracellular virus that has budded from the plasma membrane of infected cells ) of a nuclear polyhedrosis virus with multiple nucleocapsids per envelope ( mnpv ) from the lepidopteran insect , autographa californica are shown to be phenotypically distinct by comparison of viral structural polypeptides by polyacrylamide gel electrophoresis and autoradiography of l [ 35s ] methio-nine-labeled virus proteins .
C0042776
virus
C0042736
virus proteins