Genes
NCBI's Gene resources include collections of curated nucleotide sequences used as references, sequence clusters to predict and study homologs, and various databases and tools for the study of gene expression.
How to
Gene Loci
- Gene
- gene summary information and links
- clusters of expressed sequences
- Nucleotide
- gene and transcript sequences
Homologs
- HomoloGene
- homologous gene sets for selected organisms
- PopSet
- studies of sequences within and across populations
- Protein Clusters
- sequence similarity-based protein clusters
Gene Expression
- GEO Profiles
- expression profiles for individual genes
- EST
- expressed sequence tags
- SRA
- high-throughput DNA sequences
Supporting Resources
- Taxonomy
- taxonomic classification and nomenclature catalog
- GenBank
- primary nucleotide sequence repository
- RefSeq
- curated, non-redundant biological sequence set
- BioProject
- catalog of high-throughput genome-wide studies
- BioSample
- sample repository for the BioProject database
- Clone
- genomic and cDNA clone repository
- Probe
- sequence-based probe and primer repository
Additional Tools
- BLAST
- finds regions of local similarity between biological sequences
- GEO2R
- identifies differentially expressed genes in GEO datasets
- Map Viewer
- browses and displays genomic maps
- ORF Finder
- suggests potential open reading frames in a DNA sequence