ENCODEProjekt

ENCODEProjekt, commonly referred to in English as the ENCODE project, is an international research initiative aimed at identifying all functional elements in the human genome and selected model organisms. It was developed under the auspices of the National Human Genome Research Institute (NHGRI) of the U.S. National Institutes of Health and began in the early 2000s as a complement to the Human Genome Project. The project has progressed through multiple phases, with major public data releases around 2012–2013 and ongoing extensions to additional cell types and species. In German-language contexts, the project is often called the ENCODE-Projekt.

Scope and goals include cataloging promoters, enhancers, silencers, insulators, noncoding RNAs, transcription factor binding sites, chromatin states, and other regulatory elements that influence gene expression. ENCODE uses comprehensive genomic assays to generate genome-wide maps of regulatory activity and chromatin features, providing context for how DNA sequence relates to function across different cellular states.

Methods and data production involve high-throughput experiments such as ChIP-seq for histone marks and transcription factor binding, DNase-seq or DNase I hypersensitivity assays, RNA-seq for transcriptomes, and later ATAC-seq for chromatin accessibility. The resulting datasets cover numerous human cell types and tissues, and increasingly comparative analyses across species are included.

Access and impact: ENCODE data are released openly through the encodeproject.org portal and related resources, enabling researchers to interpret genetic variants, particularly noncoding variants linked to disease. The project has influenced regulatory genomics, provided functional annotations for noncoding regions, and highlighted the cell-type specificity of many regulatory elements, while also acknowledging ongoing limitations in capturing all functional contexts.