NCBI Gene, Taxonomy & Sequence Reference

Find public gene, taxonomy, nucleotide and protein records via NCBI Entrez. Research reference, not clinical interpretation. Anonymous quota: at most three requests/second; no bulk retrieval. Sequence preview is limited to the first 10,000 positions. No API key or login required for these public read tools. Source: https://www.ncbi.nlm.nih.gov/books/NBK25500/