The LJI Flow Cytometry Core Facility is one of the largest flow cytometry cores in the San Diego area. The core facility is a full service flow cytometry laboratory that provides investigators with state-of-the-art equipment along with the necessary expertise and services to support cutting-edge research. The core facility offers a wide range of routine and custom flow cytometry, mass cytometry, cell sorting services, data analysis, strategic planning for novel assays, user training as well as full scale research collaborations. More than fee-for-service providers, flow cytometry core staff members are personally invested in the success of experiments and consider themselves temporary extensions of individual labs. The flow cytometry facility has extensive experience in daily instrument calibration and maintenance, multicolor panel design, immunophenotyping, intracellular and intranuclear staining.