Integral Membrane Proteins Have Been Engineered to Lack the Portion

Multiple Choice

Integral membrane proteins have been engineered to lack the portion that normally projects into the extracellular space. When the gene is inserted in cells, what happens to the mobility of this protein in the membrane?

A) It moves at a much faster rate than the wild type protein.
B) It moves at a much slower rate than the intact protein.
C) It does not move at all.
D) It is not inserted into the membrane so nothing can be learned about their mobility.
E) It flips to the opposite leaflet.