For Researchers

Biomedical Literature

PubMed
- Biomedical journal literature. See MEDLINE/PubMed Resources for more information. Learn how to find full text articles in PubMed.
PubMed Central
- A digital archive of life sciences journal literature.
LocatorPlus Online Catalog
- LocatorPlus is the Library's online catalog containing catalog records for books, audiovisuals, journals, computer files, and other materials in the Library's collections.

BLAST
- A tool that finds regions of similarity between biological sequences. The program compares nucleotide or protein sequences to sequence databases and calculates the statistical significance.
GenBank
- A database of nucleotide sequences.
Molecular Structure and Function
- A database of macromolecular 3D structures, as well as tools for their visualization and comparative analysis.
Taxonomy Database
- A database of taxonomic names of lineages of organisms represented in NCBI's sequence databases.
Conserved Domain Database (CDD)
- A database to identify the conserved domains present in a protein sequence.
Reference Sequences (RefSeq)
- A collection of reference sequences for genomes, gene transcripts, and proteins.
UniGene
- Automatic partioning of gene transcripts and proteins.
Vector Alignment Search Tool (VAST)
- A computer algorithm developed at NCBI and used to identify similar protein 3-dimensional structures ("similar structures") by purely geometric criteria and to identify distant homologs that cannot be recognized by sequence comparison.

Online Mendelian Inheritance in Man (OMIM)
- A guide to genes and inherited disorders.
Entrez Gene
- A comprehensive database of genes and associated information.
Genome Data Viewer
- A genome browser supporting the exploration and analysis of more than 580 eukaryotic RefSeq genome assemblies.
Clone Registry
- Genomic clones and libraries, including sequence data, genomic position, and distributor information.
More Human Genome resources at NCBI

Toxicology and Environmental Health Information Program
- Comprehensive toxicology and environmental health information.
TOXNET
- A cluster of databases on toxicology, hazardous chemicals, and related areas.
Hazardous Chemical Information
Haz-Map
- An occupational toxicology database designed to link jobs to hazardous job tasks. These tasks are linked to occupational diseases and their symptoms.

NIH Disaster Research Response (DR2)
- A national framework for research on the medical and public health aspects of disasters and public health emergencies.
Health Services Research and Public Health
HealthReach - Health Information in Many Languages
- A resource of quality multilingual, multicultural public health information for those working with or providing care to individuals with limited English proficiency.
Healthy People 2020 Structured Evidence Queries
- A resource that provides pre-formulated PubMed search strategies to find published literature to support achieving Healthy People 2020 objectives.