dbSNP

dbSNP provides a comprehensive catalog of human genetic variation, including single nucleotide polymorphisms (SNPs/SNVs), microsatellites, and small insertions and deletions, annotated with publication references, population frequency data, molecular consequences, and genomic and RefSeq mapping to support association studies, gene mapping, and evolutionary biology research.

Key Features:

• Variation Types: Contains single nucleotide polymorphisms (SNPs/SNVs), microsatellites, and small-scale insertions and deletions (indels).
• Variant Annotations: Provides publication references, population frequency data, molecular consequence annotations, and genomic mapping details for each variant.
• RefSeq Mapping: Includes mapping details that link variants to RefSeq reference sequences.
• Integration with NCBI Resources: Linked to NCBI resources such as GenBank, PubMed, LocusLink, and data from the Human Genome Project.

Scientific Applications:

• Association Studies: Supports large-scale sampling designs and variant selection for genetic association studies.
• Gene Mapping: Facilitates gene mapping by providing mapped variant locations and annotations.
• Evolutionary Biology: Enables evolutionary biology research by cataloging genetic variation across populations.
• Disease Genetics: Aids investigation of genetic contributions to health and disease through allele frequency and consequence data.

Methodology:

Records include genomic mapping to specific genomic locations and mapping to RefSeq reference sequences, with associated population frequency and literature reference annotations.