The Mass Spectrometry and Biomarker Discovery Core strives to provide high-quality services to researchers interested in applying mass spectrometry-based proteomics and metabolomics technologies to address their biomedical research questions. The core provides fee-based services for protein identification and quantification, post-translational modification analysis and metabolite analysis. The core is also available to the research community for grant funded collaborative research inside and outside of Cedars-Sinai.