CXCR4 cell surface and intracellular expression was detected by flow cytometry after co-staining with the N - terminal specific CXCR4 antibody 4G10 and the extracellular loop (ECL) specific antibody 12G5 whose epitope includes the CXCR4Δ18 deleted residues [42].
Next, we characterized
CXCR4 cell surface expression over time by FACS.
Not exact matches
Using their novel approach, the scientists were able to disable a protein on the T -
cell surface called
CXCR4, which can be exploited by HIV when the virus infects T
cells and causes AIDS.
For HIV to enter T
cells, the virus first binds to a primary
surface receptor CD4 and then to a coreceptor, either CCR5 or
CXCR4.
As expected,
CXCR4 could be detected on the
surface of control
cells by both the N - terminal and ECL antibodies.
CXCR4 may then be recycled to the
cell surface or ubiquitinated by AIP4 that results in the lysosomal degradation of
CXCR4.