this light vesicle species is the first post-er fraction to be filled by labeled alpha 1-antitrypsin after a short chase , and newly made secretory proteins enter this compartment in proportion to their rate of exit from the rer and their rate of secretion from the cells : alpha 1-antitrypsin and albumin faster than prec3 and alpha 1-antichymotrypsin , faster , in turn , then transferrin .
C0230779
rer
C0007634
cells