Literature
PubMed
PubMed® comprises more than 37 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
Browse the Bookshelf
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
Sequence sets from phylogenetic and population studies
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
Study Reveals a Cell-Eat-Cell World
From normal vertebrate development to tumor cell cannibalism, cell-in-cell events occur in many different contexts across the tree of life
Researchers Bioengin-Ear Tissue Scaffolds to Human Scale
A new approach to sculpting human-like ears merges 3D printing, xenografts, and tissue engineering.
Do cats experience grief? New research suggests they might
Researchers from Oakland University surveyed hundreds of cat caregivers and found that cats exhibited behaviors associated with grief after a fellow cat or dog in the household died.
Recent blog posts
Many People with Long COVID Have Signs of Persistent SARS-CoV-2 Proteins, New Findings Show
In 2021, NIH launched the Researching COVID to Enhance Recovery (RECOVER) Initiative, a nationwide research program, to fully understand, diagnose, and treat Long COVID. We continue to learn more about this condition, in which some people experience a variety of symptoms for weeks, months, or even years after infection with SARS-CoV-2, the virus that causes COVID-19. But we’re still working to understand the underlying reasons why people develop Long COVID, who is most likely to get it, and how best to treat or prevent it. Studies have shown that for some people, SARS-CoV-2 doesn’t completely clear out after acute infection. Scientists have observed signs that the virus may persist in various parts of the body, and many suspect that this lingering virus may be causing Long COVID symptoms in some individuals. Now, in a new study supported by RECOVER, scientists found that people with Long COVID were twice as likely to have these viral remnants in their blood as people with no lingering symptoms. The findings, reported in Clinical Microbiology and Infection, add to evidence that Long COVID may sometimes stem from persistent infection with SARS-CoV-2.
On the Road: Connecting with Communities through NLM’s Traveling Exhibition Program
Since 2002, NLM Traveling Exhibitions have engaged over 8 million people with the vibrant history of medicine. By bringing impactful stories and themes to local venues, these exhibits enrich communities, foster health literacy, and make medical history widely accessible and engaging.
Expansion of Ortholog Data for RefSeq Arthropods
250K+ new Hymenoptera orthologs added NCBI is excited to announce the expansion of ortholog data for RefSeq arthropods. This update expands the breadth of arthropod orthology information, offering new insights into evolutionary biology, gene function, and shared pathways. Whether you’re studying insect genetics, developmental biology, or comparative genomics, the expanded ortholog data opens up new … Continue reading Expansion of Ortholog Data for RefSeq Arthropods