The Tissue Atlas contains information regarding the expression profiles of human genes both on the mRNA and protein level. The protein expression data from 44 normal human tissue types is derived from antibody-based protein profiling using immunohistochemistry . All underlying images of immunohistochemistry stained normal tissues are available together with knowledge-based annotation of protein expression levels. The protein data covers 15317 genes (78%) for which there are available antibodies. The mRNA expression data is derived from deep sequencing of RNA (RNA-seq) from 37 different normal tissue types.