In the post genome era, proteomic technology has rapidly developed to be a powerful platform for the research of human physiology and identifying potential novel biomarkers for prognosis, diagnosis and therapeusis . And in recent years it is shown that body fluids has become one of the important targets for proteomic research. Analysis of the protein composition in body fluids could help to better understand human physiology and disease proteomics. More and more proteomics research have produced body fluid related data and a database is needed to collect and analyze these data.

Our body fluid protein database,Sys-BodyFluid, contains 11 body fluid proteomes, including plasma/serum, urine, cerebrospinal fluid, saliva, bronchoalveolar lavage fluid, synovial fluid, nipple aspirate fluid, tear fluid, seminal fluid, human milk, and amniotic fluid. Over 10,000 proteins are included in the Sys-BodyFluid. These body fluid proteome data come from 50 peer-review publications of different laboratories all over the world. Protein annotation are provided including protein description, Gene ontology, Domain information, Protein sequence and involved pathway. User can access the proteome data by protein name, protein accession number, sequence similarity. In addition, user could perform query cross different body fluids to get more comprehensive understanding. The difference and similarity between these 11 body fluids are also analyzed. Thus , the Sys-BodyFluid database could serve as a reference database for body fluid research and disease proteomics.