Immunocytochemistry of fixed and permeabilized iPSCs plated on murine derived feeder cells using 5 µg/mL Mouse IgG2a K Isotype Control (Product # 14-4724-82) (left) or 5 µg/mL Anti-Human NLGN4X (Neuroligin-4) Alexa Fluor® 488 (right). Nuclei are stained with DAPI. An iPSC colony (positive staining) and mouse embryonic fibroblasts (negative staining) are in both fields of view.