Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

dbSNP Short Genetic Variations

Welcome to the Reference SNP (rs) Report

All alleles are reported in the Forward orientation. Click on the Variant Details tab for details on Genomic Placement, Gene, and Amino Acid changes. HGVS names are in the HGVS tab.

Reference SNP (rs) Report

This page reports data for a single dbSNP Reference SNP variation (RefSNP or rs) from the new redesigned dbSNP build.
Top of the page reports a concise summary for the rs, with more specific details included in the corresponding tabs below.
All alleles are reported in the Forward orientation. Use the Genomic View to inspect the nucleotides flanking the variant, and its neighbors.
For more information see Help documentation.


Current Build 155

Released April 9, 2021

Homo sapiens
chr1:2031630-2031644 (GRCh38.p13) Help

The anchor position for this RefSNP. Includes all nucleotides potentially affected by this change, thus it can differ from HGVS, which is right-shifted. See here for details.

Variation Type
delTGTCT(G)4CGCTAC=0.117179 (16422/140144, GnomAD)
delTGTCT(G)4CGCTAC=0.33862 (5674/16756, 8.3KJPN)
delTGTCT(G)4CGCTAC=0.1591 (711/4468, ALFA) (+ 2 more)
delTGTCT(G)4CGCTAC=0.4596 (842/1832, Korea1K)
delTGTCT(G)4CGCTAC=0.177 (106/600, NorthernSweden)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
0 citations
Genomic View
See rs on genome

Variant Details tab shows known variant placements on genomic sequences: chromosomes (NC_), RefSeqGene, pseudogenes or genomic regions (NG_), and in a separate table: on transcripts (NM_) and protein sequences (NP_). The corresponding transcript and protein locations are listed in adjacent lines, along with molecular consequences from Sequence Ontology. When no protein placement is available, only the transcript is listed. Column "Codon[Amino acid]" shows the actual base change in the format of "Reference > Alternate" allele, including the nucleotide codon change in transcripts, and the amino acid change in proteins, respectively, allowing for known ribosomal slippage sites. To view nucleotides adjacent to the variant use the Genomic View at the bottom of the page - zoom into the sequence until the nucleotides around the variant become visible.

Genomic Placements
Sequence name Change
GRCh38.p13 chr 1 NC_000001.11:g.2031630_2031644del
GRCh37.p13 chr 1 NC_000001.10:g.1963069_1963083del
GABRD RefSeqGene NG_008168.1:g.17302_17316del

Clinical Significance tab shows a list of clinical significance entries from ClinVar associated with the variation, per allele. Click on the RCV accession (i.e. RCV000001615.2) or Allele ID (i.e. 12274) to access full ClinVar report.

Not Reported in ClinVar

ALFA Allele Frequency
The ALFA project provide aggregate allele frequency from dbGaP. More information is available on the project page including descriptions, data access, and terms of use.

Release Version: 20201027095038
Population Group Sample Size Ref Allele Alt Allele
Total Global 4468 TGTCTGGGGCGCTAC=0.8409 =0.1591
European Sub 4460 TGTCTGGGGCGCTAC=0.8406 =0.1594
African Sub 0 TGTCTGGGGCGCTAC=0 =0
African Others Sub 0 TGTCTGGGGCGCTAC=0 =0
African American Sub 0 TGTCTGGGGCGCTAC=0 =0
East Asian Sub 0 TGTCTGGGGCGCTAC=0 =0
Other Asian Sub 0 TGTCTGGGGCGCTAC=0 =0
Latin American 1 Sub 0 TGTCTGGGGCGCTAC=0 =0
Latin American 2 Sub 0 TGTCTGGGGCGCTAC=0 =0
South Asian Sub 0 TGTCTGGGGCGCTAC=0 =0
Other Sub 8 TGTCTGGGGCGCTAC=1.0 =0.0


Frequency tab displays a table of the reference and alternate allele frequencies reported by various studies and populations. Table lines, where Population="Global" refer to the entire study population, whereas lines, where Group="Sub", refer to a study-specific population subgroupings (i.e. AFR, CAU, etc.), if available. Frequency for the alternate allele (Alt Allele) is a ratio of samples observed-to-total, where the numerator (observed samples) is the number of chromosomes in the study with the minor allele present (found in "Sample size", where Group="Sub"), and the denominator (total samples) is the total number of all chromosomes in the study for the variant (found in "Sample size", where Group="Study-wide" and Population="Global").

Study Population Group Sample Size Ref Allele Alt Allele
gnomAD - Genomes Global Study-wide 140144 TGTCT(G)4CGCTAC=0.882821 delTGTCT(G)4CGCTAC=0.117179
gnomAD - Genomes European Sub 75884 TGTCT(G)4CGCTAC=0.85865 delTGTCT(G)4CGCTAC=0.14135
gnomAD - Genomes African Sub 42028 TGTCT(G)4CGCTAC=0.96605 delTGTCT(G)4CGCTAC=0.03395
gnomAD - Genomes American Sub 13654 TGTCT(G)4CGCTAC=0.84342 delTGTCT(G)4CGCTAC=0.15658
gnomAD - Genomes Ashkenazi Jewish Sub 3324 TGTCT(G)4CGCTAC=0.8845 delTGTCT(G)4CGCTAC=0.1155
gnomAD - Genomes East Asian Sub 3100 TGTCT(G)4CGCTAC=0.5332 delTGTCT(G)4CGCTAC=0.4668
gnomAD - Genomes Other Sub 2154 TGTCT(G)4CGCTAC=0.8607 delTGTCT(G)4CGCTAC=0.1393
8.3KJPN JAPANESE Study-wide 16756 TGTCT(G)4CGCTAC=0.66138 delTGTCT(G)4CGCTAC=0.33862
Korean Genome Project KOREAN Study-wide 1832 TGTCT(G)4CGCTAC=0.5404 delTGTCT(G)4CGCTAC=0.4596
Northern Sweden ACPOP Study-wide 600 TGTCT(G)4CGCTAC=0.823 delTGTCT(G)4CGCTAC=0.177

Aliases tab displays HGVS names representing the variant placements and allele changes on genomic, transcript and protein sequences, per allele. HGVS name is an expression for reporting sequence accession and version, sequence type, position, and allele change. The column "Note" can have two values: "diff" means that there is a difference between the reference allele (variation interval) at the placement reported in HGVS name and the reference alleles reported in other HGVS names, and "rev" means that the sequence of this variation interval at the placement reported in HGVS name is in reverse orientation to the sequence(s) of this variation in other HGVS names not labeled as "rev".

GRCh38.p13 chr 1 NC_000001.11:g.2031630_2031644= NC_000001.11:g.2031630_2031644del
GRCh37.p13 chr 1 NC_000001.10:g.1963069_1963083= NC_000001.10:g.1963069_1963083del
GABRD RefSeqGene NG_008168.1:g.17302_17316= NG_008168.1:g.17302_17316del

Submissions tab displays variations originally submitted to dbSNP, now supporting this RefSNP cluster (rs). We display Submitter handle, Submission identifier, Date and Build number, when the submission appeared for the first time. Direct submissions to dbSNP have Submission ID in the form of an ss-prefixed number (ss#). Other supporting variations are listed in the table without ss#.

8 SubSNP, 5 Frequency submissions
No Submitter Submission ID Date (Build)
1 SYSTEMSBIOZJU ss2137334783 Nov 08, 2017 (151)
2 GNOMAD ss2750777879 Nov 08, 2017 (151)
3 SWEGEN ss2986170096 Nov 08, 2017 (151)
4 MCHAISSO ss3063574007 Nov 08, 2017 (151)
5 ACPOP ss3726725842 Jul 12, 2019 (153)
6 EVA ss3825986445 Apr 25, 2020 (154)
7 KOGIC ss3943658533 Apr 25, 2020 (154)
8 TOMMO_GENOMICS ss5142114268 Apr 25, 2021 (155)
9 gnomAD - Genomes NC_000001.11 - 2031630 Apr 25, 2021 (155)
10 Korean Genome Project NC_000001.11 - 2031630 Apr 25, 2020 (154)
11 Northern Sweden NC_000001.10 - 1963069 Jul 12, 2019 (153)
12 8.3KJPN NC_000001.10 - 1963069 Apr 25, 2021 (155)
13 ALFA NC_000001.11 - 2031630 Apr 25, 2021 (155)

History tab displays RefSNPs (Associated ID) from previous builds (Build) that now support the current RefSNP, and the dates, when the history was updated for each Associated ID (History Updated).

Added to this RefSNP Cluster:
Submission IDs Observation SPDI Canonical SPDI Source RSIDs
10707, 83575, ss2137334783, ss2750777879, ss2986170096, ss3726725842, ss3825986445, ss5142114268 NC_000001.10:1963068:TGTCTGGGGCGCT…




394680, 36534, 6948618580, ss3063574007, ss3943658533 NC_000001.11:2031629:TGTCTGGGGCGCT…





Publications tab displays PubMed articles citing the variation as a listing of PMID, Title, Author, Year, Journal, ordered by Year, descending.

No publications for rs1334340633


The Flanks tab provides retrieving flanking sequences of a SNP on all molecules that have placements.

Genome context:
Select flank length:

Genomic regions, transcripts, and products
Top Help

NCBI Graphical Sequence Viewer display of the genomic region, transcripts and protein products for the reported RefSNP (rs).
Use the zoom option to view the nucleotides around the RefSNP and find other neighboring RefSNPs.
Visit Sequence Viewer for help with navigating inside the display and modifying the selection of displayed data tracks.

Software version is: 2.0.1.post596+ae089ad