eLife Assessment
This is an important study that provides CCR7-APEX2 proximity labelling mass spectrometry data that is expected to provide new insights into CCR7 signaling partners and pathways. The study is technically easy to follow and the data is convincing. It will be interesting in the future to have complementary studies in lymphocytes/dendritic cells that endogenously express CCR7. This is of value to the community, and there are likely multiple opportunities to use the APEX2 data set to extend these findings, strengthen some claims, and even explore a new pathway identified in the APEX2 data set.