Literature
PubMed
PubMed® comprises more than 39 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.
Featured Bookshelf titles
Drug Therapy for Early Rheumatoid Arthritis
A Systematic Review Update
Literature databases
Books and reports
Ontology used for PubMed indexing
Books, journals and more in the NLM Collections
Scientific and medical abstracts/citations
Full-text journal articles
Data
Genes
Gene sequences and annotations used as references for the study of orthologs structure, expression, and evolution
Collected information about gene loci
Functional genomics studies
Gene expression and molecular abundance profiles
Proteins
Protein sequences, 3-D structures, and tools for the study of functional protein domains and active sites
Conserved protein domains
Protein sequences grouped by identity
Protein sequences
Models representing homologous proteins with a common function
Experimentally-determined biomolecular structures
BLAST
A tool to find regions of similarity between biological sequences
Search nucleotide sequence databases
Search protein sequence databases
Search protein databases using a translated nucleotide query
Search translated nucleotide databases using a protein query
Find primers specific to your PCR template
Genomes
Genome sequence assemblies, large-scale functional genomics data, and source biological samples
Genome assembly information
Museum, herbaria, and other biorepository collections
Biological projects providing data to NCBI
Descriptions of biological source materials
Genome sequencing projects by organism
DNA and RNA sequences
High-throughput sequence reads
Taxonomic classification and nomenclature
Clinical
Heritable DNA variations, associations with human pathologies, and clinical diagnostics and treatments
Privately and publicly funded clinical studies conducted around the world
Human variations of clinical significance
Genotype/phenotype interaction studies
Short genetic variations
Genome structural variation studies
Genetic testing registry
Medical genetics literature and links
Online mendelian inheritance in man
PubChem
Repository of chemical information, molecular pathways, and tools for bioactivity screening
Bioactivity screening studies
Chemical information with structures, information and links
Molecular pathways with links to genes, proteins and chemicals
Deposited substance and chemical information
News
Research news
Brain structure differences are associated with early use of substances among adolescents
Many differences appeared to exist prior to any substance use, pointing to the role brain structure may play in substance use risk, NIH-supported study suggests.
Bird flu Q&A: What to know to help protect yourself and your pets
Each week some revelation about bird flu seems to flutter through the news cycle. Here's what the latest research is saying about how it is spreading and how to keep yourself and your pets safe.
Great Anticancer Potential Comes in a Small Package
Jingjing Sun developed a novel, ultra-small nanocarrier that actively targets tumor cells.
Recent blog posts
Access Avian Influenza A (H5N1) Virus Sequences from the Current Outbreak at NCBI
The U.S. Centers for Disease Control and Prevention (CDC) has been monitoring the ongoing outbreak of the avian influenza A (H5N1) virus. This is widespread globally in wild birds, and has led to sporadic outbreaks in poultry, cows, several species of wild animals, and has been detected in exposed humans. The CDC recently sequenced the … Continue reading Access Avian Influenza A (H5N1) Virus Sequences from the Current Outbreak at NCBI
Librarians: Step into a New Year and a New Opportunity to Develop Your Skills
NLM’s 2025-2026 Associate Fellowship Program invites early- and second-career librarians to enhance their skills through a unique, year-long program. Current fellowship participants discuss their experiences learning about user engagement, data curation, and library services while collaborating with NLM experts. Fellowship applications are open until January 24, 2025.
Top of 2024: A Look at the NCBI Insights Blog
As we begin a new year, let’s look back at the top NCBI Insights Blog posts of 2024 based on number of views. In case you missed any of these, check them out: Learn more The NCBI Insights Blog is intended to help you better understand NCBI and our resources, explore issues of scientific interest … Continue reading Top of 2024: A Look at the NCBI Insights Blog