Literature
PubMed
PubMed® comprises more than 36 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
Homologous genes sets for selected organisms
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
‘Zoom fatigue’ may take toll on the brain and the heart, researchers say
Participants were monitored with electroencephalogram and electrocardiogram instruments that recorded electrical activity in the brain and their heart rhythms.
Overdose deaths have soared among pregnant people, study reveals
The alarming report highlights a need to improve outreach and encourage more pregnant and postpartum people to seek treatment, experts say.
Loosening restrictions on marijuana may not be boon for reform
The Drug Enforcement Administration may remove marijuana’s classification as a Schedule I drug. It has implications for research, sales and criminal prosecutions.
Recent blog posts
Meet the NLM Investigators: Dr. Teresa Przytycka and Gene Pathways
When she was young, Dr. Przytycka read a book on Marie Skłodowska-Curie and dreamed of becoming a scientist ever since. The story of this famous Polish-born scientist showed not only how exciting scientific discoveries are, but also that a woman can be a scientist. Now see what she does for our IRP!
Coming Soon! Updates to the ClinVar Website
In order to support the inclusion of submitted somatic variation data, we are updating the ClinVar website. In early 2024, you will begin to see some changes. What will change? Variant (VCV) record pages will have an updated look and feel: Simpler layout with no tabs New sections will display somatic classifications Summary section will … Continue reading Coming Soon! Updates to the ClinVar Website
The Amazing Brain: Turning Conventional Wisdom on Brain Anatomy on its Head
Silas Busch at the University of Chicago captured this slightly eerie scene, noting it reminded him of people shuffling through the dark of night. What you’re really seeing are some of the largest neurons in the mammalian brain, known as Purkinje cells. The photo won first place this year in the Brain Research through Advancing Innovative Neurotechnologies® (BRAIN) Initiative’s annual Show Us Your BRAINs! Photo and Video Contest. While humans have them, too, the Purkinje cells pictured here are in the brain of a mouse. The head-like shapes you see in the image are the so-called soma, or the neurons’ cell bodies. Extending downwards are the heavily branched dendrites, which act like large antennae, receiving thousands of inputs from the rest of the body.