Fig. 6. The C2B of synaptotagmin VII is not internalized in PC12 cells. PC12 cells
were generated that stably expressed CD4-C2B constructs for synaptotagmin I
(residues 266-421, C2B 1) and synaptotagmin VII (residues 261-403, C2B 7).
These cells were examined by the previously described radioactive
internalization assay.