Human Genome Resources
(National Center for Biotechnology Information)
Integrated Taxonomic Information System
Here you will find authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world
National Biological Information Infrastructure
National Center for Biotechnology Information Structure Group
The NCBI Structure Group maintains MMDB, a database of macromolecular 3D structures, as well as tools for their visualization and comparative analysis.
National Center for Biotechnology Information Taxonomy Homepage
Plants National Database