U.S. flag

An official website of the United States government

NCBI Variation Summary


Summary of human variation data available from dbSNP and dbVar.

Report date: Monday, September 18, 2023

Total Variants:

  • SubSNP count: 1,803,563,957
  • RefSNP count: 660,773,127
  • Variant Call count: 44,902,777
  • Variant Region count: 14,256,792

Organism Common Name Taxon ID dbSNP dbVar
Homo sapiens human 9606 Last Updated: Build 151 (Oct 6, 2017)
RefSNP Count: 660.8 Million
SubSNP Count: 1803.6 Million
Assembly: GRCh37.p13, GRCh38.p7
DataSearch, FTP
Genome Data Viewer: GRCh37.p13, GRCh38.p7
Last Updated: Sep 15, 2023
Variant Regions: 7.7 Million
Variant Calls: 37.7 Million
Assembly: GRCh37, GRCh37.p13, GRCh38, GRCh38.p12, GRCh38.p13, GRCh38.p14, GRCh38.p9, NCBI34, NCBI35, NCBI36
DataSearch, FTP
dbVar Browser: GRCh37, GRCh38, NCBI34, NCBI35, NCBI36
Genome Data Viewer: GRCh37

Support Center

Last updated: 2023-09-18T14:00:07Z