Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

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.

rs7121776

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr11:18949439 (GRCh38.p14) 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.

Alleles
T>C
Variation Type
SNV Single Nucleotide Variation
Frequency
C=0.064366 (17037/264690, TOPMED)
C=0.061095 (8554/140012, GnomAD)
C=0.03224 (609/18890, ALFA) (+ 8 more)
C=0.0720 (461/6404, 1000G_30x)
C=0.0683 (342/5008, 1000G)
C=0.0002 (1/4480, Estonian)
C=0.0023 (9/3854, ALSPAC)
C=0.0011 (4/3708, TWINSUK)
C=0.081 (25/308, HapMap)
C=0.028 (6/216, Qatari)
T=0.38 (12/32, SGDP_PRJ)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
None
Publications
0 citations
Genomic View
See rs on genome

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: 20230706150541
Population Group Sample Size Ref Allele Alt Allele
Total Global 18890 T=0.96776 C=0.03224
European Sub 14286 T=0.99874 C=0.00126
African Sub 2946 T=0.8116 C=0.1884
African Others Sub 114 T=0.851 C=0.149
African American Sub 2832 T=0.8100 C=0.1900
Asian Sub 112 T=1.000 C=0.000
East Asian Sub 86 T=1.00 C=0.00
Other Asian Sub 26 T=1.00 C=0.00
Latin American 1 Sub 146 T=0.952 C=0.048
Latin American 2 Sub 610 T=0.997 C=0.003
South Asian Sub 98 T=1.00 C=0.00
Other Sub 692 T=0.961 C=0.039


Help

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").

Download
Study Population Group Sample Size Ref Allele Alt Allele
TopMed Global Study-wide 264690 T=0.935634 C=0.064366
gnomAD - Genomes Global Study-wide 140012 T=0.938905 C=0.061095
gnomAD - Genomes European Sub 75936 T=0.99842 C=0.00158
gnomAD - Genomes African Sub 41966 T=0.80787 C=0.19213
gnomAD - Genomes American Sub 13656 T=0.97986 C=0.02014
gnomAD - Genomes Ashkenazi Jewish Sub 3178 T=1.0000 C=0.0000
gnomAD - Genomes East Asian Sub 3128 T=1.0000 C=0.0000
gnomAD - Genomes Other Sub 2148 T=0.9553 C=0.0447
Allele Frequency Aggregator Total Global 18890 T=0.96776 C=0.03224
Allele Frequency Aggregator European Sub 14286 T=0.99874 C=0.00126
Allele Frequency Aggregator African Sub 2946 T=0.8116 C=0.1884
Allele Frequency Aggregator Other Sub 692 T=0.961 C=0.039
Allele Frequency Aggregator Latin American 2 Sub 610 T=0.997 C=0.003
Allele Frequency Aggregator Latin American 1 Sub 146 T=0.952 C=0.048
Allele Frequency Aggregator Asian Sub 112 T=1.000 C=0.000
Allele Frequency Aggregator South Asian Sub 98 T=1.00 C=0.00
1000Genomes_30x Global Study-wide 6404 T=0.9280 C=0.0720
1000Genomes_30x African Sub 1786 T=0.7542 C=0.2458
1000Genomes_30x Europe Sub 1266 T=0.9992 C=0.0008
1000Genomes_30x South Asian Sub 1202 T=0.9992 C=0.0008
1000Genomes_30x East Asian Sub 1170 T=1.0000 C=0.0000
1000Genomes_30x American Sub 980 T=0.980 C=0.020
1000Genomes Global Study-wide 5008 T=0.9317 C=0.0683
1000Genomes African Sub 1322 T=0.7557 C=0.2443
1000Genomes East Asian Sub 1008 T=1.0000 C=0.0000
1000Genomes Europe Sub 1006 T=0.9980 C=0.0020
1000Genomes South Asian Sub 978 T=0.999 C=0.001
1000Genomes American Sub 694 T=0.977 C=0.023
Genetic variation in the Estonian population Estonian Study-wide 4480 T=0.9998 C=0.0002
The Avon Longitudinal Study of Parents and Children PARENT AND CHILD COHORT Study-wide 3854 T=0.9977 C=0.0023
UK 10K study - Twins TWIN COHORT Study-wide 3708 T=0.9989 C=0.0011
HapMap Global Study-wide 308 T=0.919 C=0.081
HapMap American Sub 118 T=1.000 C=0.000
HapMap African Sub 110 T=0.782 C=0.218
HapMap Asian Sub 80 T=0.99 C=0.01
Qatari Global Study-wide 216 T=0.972 C=0.028
SGDP_PRJ Global Study-wide 32 T=0.38 C=0.62
Help

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.p14 chr 11 NC_000011.10:g.18949439T>C
GRCh37.p13 chr 11 NC_000011.9:g.18970986T>C
Help

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
Help

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".

Placement T= C
GRCh38.p14 chr 11 NC_000011.10:g.18949439= NC_000011.10:g.18949439T>C
GRCh37.p13 chr 11 NC_000011.9:g.18970986= NC_000011.9:g.18970986T>C
Help

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#.

29 SubSNP, 11 Frequency submissions
No Submitter Submission ID Date (Build)
1 BCM_SSAHASNP ss10686179 Jul 11, 2003 (116)
2 AFFY ss66037135 Nov 30, 2006 (142)
3 KRIBB_YJKIM ss82388000 Dec 15, 2007 (130)
4 BUSHMAN ss202451625 Jul 04, 2010 (132)
5 1000GENOMES ss336580508 May 09, 2011 (134)
6 TISHKOFF ss562421498 Apr 25, 2013 (138)
7 JMKIDD_LAB ss1077544903 Aug 21, 2014 (142)
8 1000GENOMES ss1340341234 Aug 21, 2014 (142)
9 EVA_UK10K_ALSPAC ss1626110227 Apr 01, 2015 (144)
10 EVA_UK10K_TWINSUK ss1669104260 Apr 01, 2015 (144)
11 WEILL_CORNELL_DGM ss1931629022 Feb 12, 2016 (147)
12 JJLAB ss2026559008 Sep 14, 2016 (149)
13 HUMAN_LONGEVITY ss2180647213 Dec 20, 2016 (150)
14 GNOMAD ss2896962260 Nov 08, 2017 (151)
15 SWEGEN ss3007688725 Nov 08, 2017 (151)
16 EGCUT_WGS ss3675088386 Jul 13, 2019 (153)
17 EVA_DECODE ss3691323917 Jul 13, 2019 (153)
18 KHV_HUMAN_GENOMES ss3814358545 Jul 13, 2019 (153)
19 EVA ss3832508017 Apr 26, 2020 (154)
20 SGDP_PRJ ss3875761439 Apr 26, 2020 (154)
21 TOPMED ss4877158913 Apr 26, 2021 (155)
22 1000G_HIGH_COVERAGE ss5286595648 Oct 16, 2022 (156)
23 EVA ss5398096409 Oct 16, 2022 (156)
24 HUGCELL_USP ss5481878695 Oct 16, 2022 (156)
25 1000G_HIGH_COVERAGE ss5581818777 Oct 16, 2022 (156)
26 SANFORD_IMAGENETICS ss5650746316 Oct 16, 2022 (156)
27 EVA ss5836338930 Oct 16, 2022 (156)
28 EVA ss5919055116 Oct 16, 2022 (156)
29 EVA ss5942056630 Oct 16, 2022 (156)
30 1000Genomes NC_000011.9 - 18970986 Oct 12, 2018 (152)
31 1000Genomes_30x NC_000011.10 - 18949439 Oct 16, 2022 (156)
32 The Avon Longitudinal Study of Parents and Children NC_000011.9 - 18970986 Oct 12, 2018 (152)
33 Genetic variation in the Estonian population NC_000011.9 - 18970986 Oct 12, 2018 (152)
34 gnomAD - Genomes NC_000011.10 - 18949439 Apr 26, 2021 (155)
35 HapMap NC_000011.10 - 18949439 Apr 26, 2020 (154)
36 Qatari NC_000011.9 - 18970986 Apr 26, 2020 (154)
37 SGDP_PRJ NC_000011.9 - 18970986 Apr 26, 2020 (154)
38 TopMed NC_000011.10 - 18949439 Apr 26, 2021 (155)
39 UK 10K study - Twins NC_000011.9 - 18970986 Oct 12, 2018 (152)
40 ALFA NC_000011.10 - 18949439 Apr 26, 2021 (155)
Help

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).

Associated ID History Updated (Build)
rs41391158 Aug 21, 2014 (142)
rs58923673 Feb 27, 2009 (130)
Added to this RefSNP Cluster:
Submission IDs Observation SPDI Canonical SPDI Source RSIDs
ss66037135, ss202451625 NC_000011.8:18927561:T:C NC_000011.10:18949438:T:C (self)
52831992, 29348519, 20826634, 13670952, 27778419, 29348519, ss336580508, ss562421498, ss1077544903, ss1340341234, ss1626110227, ss1669104260, ss1931629022, ss2026559008, ss2896962260, ss3007688725, ss3675088386, ss3832508017, ss3875761439, ss5398096409, ss5650746316, ss5836338930, ss5942056630 NC_000011.9:18970985:T:C NC_000011.10:18949438:T:C (self)
69344712, 372967218, 561816, 92704569, 5016622355, ss2180647213, ss3691323917, ss3814358545, ss4877158913, ss5286595648, ss5481878695, ss5581818777, ss5919055116 NC_000011.10:18949438:T:C NC_000011.10:18949438:T:C (self)
ss10686179 NT_009237.15:10372089:T:C NC_000011.10:18949438:T:C (self)
ss82388000 NT_009237.18:18910985:T:C NC_000011.10:18949438:T:C (self)
Help

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

No publications for rs7121776

Help

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.post761+d5e8e07