BIO 1140 Lecture Notes - Lecture 17: Bcl-2-Associated X Protein, Disulfide, Growth Factor
4 Nov 2017
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Cell biology lesson 17: ribosoes in citosol will translate mrna and produce proteins. However, not all proteins are cytosolic: we now have a polypeptide completely in the er, beginning translation is the same. Slide 2: as translation resumes, there"s a slight difference for the transmembrane proteins, once polypeptiode is translocated over er, complex recognizes a signal sequence called. Slide 3: what is the function of a chaperone protein, answer: d, chaperone proteins help polypeptides as they are being formed. Slide 4: 2 types of chaperons, smallest protexcts polypeptides from degradation while it is being formd, the larger, groel, isolate peptide from its environment, after translation. They basically engulf polypeptodes, to facilitate the folding. Some have the ability to interact with it and direct sthose that aren"t matches for degradation: found in golgi and the cytoplasm. In chaperone process, in golgi, there can be a final quality check on protein folding.
