when a supernatant lacking ribosomes and particles greater than 50s from centrifuging the detergent-solubilized microsomes at high speed was used for reconstitution , smooth-surfaced membrane vesicles were obtained that , except for the absence of ribosomal proteins , were similar in protein composition to that of the reconstituted vesicles from total solubilized rough microsomes .
C0035553
ribosomes
C0035552
ribosomal proteins