img165 - mm“ “mum-hum G0 to the next screen Recall that...

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Unformatted text preview: mm“ “mum-hum G0 to the next screen: Recall that a protein is a polypeptide. Asths “I'M-wu- " 3 M protein is copied from the mRNA it is elongated and released into.the o ..... lumen of the rough ER 0 tau-ut- O u 0 ~— Wadd- % G0 to the next screen: The process of protein synthesis in __‘ association with the endoplasmic reticulum is illustrated in this he 3 animation. The polypeptide chain passes through the membrane and a 3—“ enters lumen of the rough endoplasmic reticulum. The polypeptide chain __ :3 travels from the lumen of the rough endoplasmic reticulum to the lumen 8'" :— b of the smooth endoplasmic reticulum. A small portion of the smooth ER my; 9 buds off into a vesicle containing the polypeptide (unless its destination is within the ER). The pumgse of the smmth ER is to We 9; ’ s . if” l-—=I goes b (Sakai «((CUMTLL «65“ "fi‘"“" Go to the next screen: The bud firm with the Golgi apparatus, a _' emptying its contents at the Golgi cistema close to the endoplasmic 0...... .L ---.> _ av-o/l reticulum. G0 to the next screen: Once in the Golgi apparatus, the polypeptide undergoes further processing as it travels to the trans face on the opposite end of the Golgi apparatus. The Golgi apparatus sorts and packages proteins into vesicles that are targeted for their appropriate locations. zk WWE'MS c. 1 _ ‘ 394+ out” 0'? LLKK (C(‘K‘flfil9 —- Smm&_ in CLU “ VLSQJJL in em Met/\ézm‘ Go to the next screen: Proteins synthesized in a cell can be destined for the nucleus, cytosol, phsma membrane, or one of the organelles, or may be secreted from the cell by exocytosis as is shown here. On the screen you can see another movie-Wrotein moving from the rough ER to the smooth ER then to the Golgi apparatus for packaging. Click Home Menu Button imgcr, 0’7"“ i (am; fab on Page 3 of8 ...
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