Developed as the initial project of the Allen Institute for Brain Science, the Allen Brain Atlas (ABA) "is intended to be the foundation for building and expanding neuroscience research by integrating genomic-based methodologies with world-class computer science and traditional neuroanatomy." Based on a mouse brain, the ABA provides access to "an extensive database of ISH images, ABA reference atlas, and gene expression masks. Future releases will allow users to search by anatomic region, gene expression pattern or level, and will contain an expanded gene set." The first data release of almost 2,000 genes occurred in December of 2004. The ABA website contains bios for Institute Principals, Core Team members, and Scientific Advisory Board members; and connects to Employment Opportunities listings as well.