has_participant has participant has participant immune system process immune response GO:0006955 biological_process Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat. response to stimulus C7 CD1E CD40LG MS4A2 FCGR3A FCGR3B GZMA HLA-DRA IGJ IGKC IL7R CCL4 CCL5 CCL19 CCL21 CD96 LILRB2