eFetch Snp

eFetch Snp retrieves SNP (Single Nucleotide Polymorphism) records from NCBI dbSNP given a list of SNP IDs to support genetic variant annotation and downstream analyses.

Key Features:

• Entrez E-utilities: Uses NCBI Entrez Programming Utilities to programmatically query NCBI resources.
• dbSNP integration: Accesses dbSNP records as the authoritative source of SNP data.
• SNP attribute retrieval: Retrieves explicit SNP attributes including genomic location, allele frequency, and phenotype-related annotations.
• Batch/high-throughput processing: Accepts lists of SNP IDs and is intended to handle large datasets for bulk retrieval.

Scientific Applications:

• Genetic research: Provides SNP data for association studies, population genetics, and evolutionary analyses.
• Medical genetics: Supports identification of SNPs associated with disease phenotypes and drug response for precision medicine research.
• Bioinformatics analyses: Supplies variant information for genome-wide association studies (GWAS) and comparative genomics workflows.

Methodology:

Queries the dbSNP database via NCBI Entrez Programming Utilities (E-utilities) using provided SNP ID lists to retrieve dbSNP records and their annotated attributes.