JOB: Japan Omics Browser provides integrative visualization of multi-omics data.

We present the Japan Omics Browser (JOB), which enables integrative analysis of human omics at different layers. JOB offers visualization of per-variant regulatory effects in the human blood at mRNA and protein level distinctively, quantified from statistical fine-mapping of mRNA-expression quantitative loci (eQTL) and protein QTLs (pQTLs) in 1,405 Japanese, together with fine-mapping results of 94 complex traits in UK Biobank. In addition, JOB shows per-tissue regulatory effect prediction score (EMS), trained via multi-task learning. Furthermore, validation scores from Massively Parallel Reporter Assay (MPRA) in two cell types are available for over 10,000 variants. JOB is publicly available at https://japan-omics.jp/ .