Characteristics of Protein Translocation Systems Include All EXCEPT

question 25

Multiple Choice

Characteristics of protein translocation systems include all EXCEPT:

• A) proteins to be translocated are made as pre-proteins containing contiguous blocks of amino acid sequences that act as sorting signals.
• B) membranes involved in translocation have specific protein receptors exposed on their cytosolic faces.
• C) translocons catalyze movement of the proteins across the membrane and metabolic energy in the form of ATP, GTP, or membrane potential is essential.
• D) pre-proteins are maintained in a loosely folded, translocation-competent conformation through interaction with molecular chaperones.
• E) all are characteristics.