dbSNP contains human single nucleotide variations, microsatellites, and small-scale insertions and deletions along with publication, population frequency, molecular consequence, and genomic and RefSeq mapping information for both common variations and clinical mutations.
Publication: SPDI: Data Model for Variants and Applications at NCBI (PubMed)

ASHG dbSNP and dbGaP Allele Frequency Aggregator (ALFA) project collab, presentation, and handout are now online.

How to Search dbSNP. Additional search terms are here.

All of dbSNP (then use filters on results page) all[sb]
dbSNP RefSNP ID Single: 328; Multiple 328,226,200
Gene Gene symbol PTEN[Gene Name] or gene ID 4023[Gene_ID]
Genomic location of a single position or range on GRCh38. See the announcement and the guide for using GRCh37 coordinates 6[Chromosome] AND (1500000:3000000[Base Position] )
Clinical significance "pathogenic"[Clinical Significance]) OR "likely pathogenic"[Clinical Significance]
Global or study-wide minor allele frequency (GMAF) of a single frequency or range
(Note the required zero padding frequency as shown in example for 0.001 and 0.01)
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