dbSNP Database
Overview
NCBI dbSNP is the primary public repository for short human genetic variants, cataloguing over 1 billion SNPs, indels, and MNVs with allele frequencies, functional annotations, and cross-references to ClinVar, gnomAD, and 1000 Genomes. Variants are identified by stable rsIDs (reference SNP cluster IDs). Access is free via two APIs: the legacy NCBI E-utilities and the newer NCBI Variation Services REST API, which returns structured JSON.
When to Use
- Looking u
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