The Gene Ontology
This is a bioinformatics project aiming to standardize the representation of gene and gene product attributes across species and databases. It contains a controlled vocabulary of terms for describing gene product characteristics and annotation data.
GeneTests Web site is a "publicly funded medical genetics information resource developed for physicians, other healthcare providers, and researchers, available at no cost to all interested persons." It includes:
Expert-authored peer-reviewed disease descriptions
International directory of genetic testing laboratories
International directory of genetics and prenatal diagnosis clinics
Illustrated glossary, information on genetic services, PowerPoint® presentations, annotated Internet resources
Genetic Testing Registry is an NCBI, free online resource that provides a centralized location for comprehensive genetic test information that is voluntarily submitted by test providers.
Atlas of Genetics and Cytogenetics in Oncology and Hematology "presents reviews (cards) or longer texts (deep insights), a huge portal towards genetics and/or cancer databases and journals, teaching items in Genetics for students in Medicine and in Sciences, and a case report section"
Online Mendelian Inheritance in Man ® . OMIM is a authored and edited at the McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine "comprehensive, authoritative, and timely compendium of human genes and genetic phenotypes. It contain information on all known mendelian disorders and over 12,000 genes.
Nucleotide database "is a collection of sequences from several sources, including GenBank, RefSeq, TPA and PDB. Genome, gene and transcript sequence data provide the foundation for biomedical research and discovery."
Entrez Gene "maintains information about genes from genomes of interest to the RefSeq group"
Reference Sequence (RefSeq) collection is a compendium of "a comprehensive, integrated, non-redundant, well-annotated set of sequences, including genomic DNA, transcripts, and proteins."
Map Viewer "allows you to view and search an organism's complete genome, display chromosome maps, and zoom into progressively greater levels of detail, down to the sequence data for a region of interest"
The Single Nucleotide Polymorphism database (dbSNP) is a public-domain archive for a broad collection of simple genetic polymorphisms. It can be used for gene mapping, definition of population structure, and performance of functional studies.