Schema for dbSNP - Short Genetic Variations in dbSNP (v149)
  Database: dm6    Primary Table: dbsnp
VCF File: /gbdb/dm6/bbi/vcf/dm6_dbsnp149.vcf.gz
Format description: The fields of a Variant Call Format data line
See the Variant Call Format specification for more details
chromAn identifier from the reference genome
posThe reference position, with the 1st base having position 1
idSemi-colon separated list of unique identifiers where available
refReference base(s)
altComma separated list of alternate non-reference alleles called on at least one of the samples
qualPhred-scaled quality score for the assertion made in ALT. i.e. give -10log_10 prob(call in ALT is wrong)
filterPASS if this position has passed all filters. Otherwise, a semicolon-separated list of codes for filters that fail
infoAdditional information encoded as a semicolon-separated series of short keys with optional comma-separated values
formatIf genotype columns are specified in header, a semicolon-separated list of of short keys starting with GT
genotypesIf genotype columns are specified in header, a tab-separated set of genotype column values; each value is a colon-separated list of values corresponding to keys in the format column

Sample Rows

dbSNP (dbsnp) Track Description


This track shows the locations of sequence variants in the D. melanogaster genome from the NCBI Single Nucleotide Polymorphism database (dbSNP). The D. melanogaster dataset for release 149 of dbSNP was obtained from the NCBI FTP site.


Kitts A, Phan L, Ward M, et al. The Database of Short Genetic Variation (dbSNP) 2013 Jun 30 [Updated 2014 Apr 3]. In: The NCBI Handbook [Internet]. 2nd edition. Bethesda (MD): National Center for Biotechnology Information (US); 2013-. Available from:

Sherry ST, Ward MH, Kholodov M, Baker J, Phan L, Smigielski EM, Sirotkin K. dbSNP: the NCBI database of genetic variation. Nucleic Acids Res. 2001 Jan 1;29(1):308-11.