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
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
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
Viewing Ligand-Protein Interactions in iCn3D
Are you interested in viewing how a protein interacts with a ligand? iCn3D, our 3D molecular structure viewer, now offers improved displays of these interactions at an atomic level. Check out this example: You are now able to see the interactions of an embedded ligand (such as the drug Gleevec in the protein ABL2) within … Continue reading Viewing Ligand-Protein Interactions in iCn3D
‘Silent’ Mutations Could Have Unexpectedly Far-Reaching Effects that May Impact Health
Genetic mutations affect nearly all human diseases. Some genetic disorders such as cystic fibrosis are caused by mutations in a single gene that a person inherits from their parents. Other diseases can be caused by changes in multiple genes or from a combination of gene mutations and environmental factors. We still have a lot to […]
Updated Genomes Terminology! “Representative Genome” is Replaced with “Reference Genome”
NCBI is streamlining the terminology around our reference genomes. We currently have a small set of genomes collectively called representatives and an even smaller set called references. We have slowly converged on the term reference to refer to both sets. A genome is labeled reference if it is deemed to be the best available genome … Continue reading Updated Genomes Terminology! “Representative Genome” is Replaced with “Reference Genome”