when the ts-1 mutant of semliki forest virus ( sfv ) was grown in chick embryo or bhk 21 cells at the restrictive temperature ( 39 degrees c ) , its membrane glycoproteins were arrested in the endoplasmic reticulum , but started to migrate to the cell surface once the cultures were shifted to the permissive temperature ( 28 degrees c ) .
C0007634
cells
C0699040
cell surface