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.

rs4287120

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr1:104033 (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=0.49437 (13969/28256, 14KJPN)
T=0.49684 (8327/16760, 8.3KJPN)
T=0.48035 (7845/16332, ALFA) (+ 4 more)
T=0.4983 (1456/2922, KOREAN)
T=0.478 (257/538, SGDP_PRJ)
C=0.321 (68/212, Qatari)
T=0.45 (18/40, GENOME_DK)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
LOC124903816 : Intron Variant
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 16332 T=0.48035 C=0.51965
European Sub 12080 T=0.47798 C=0.52202
African Sub 2816 T=0.4933 C=0.5067
African Others Sub 108 T=0.509 C=0.491
African American Sub 2708 T=0.4926 C=0.5074
Asian Sub 108 T=0.491 C=0.509
East Asian Sub 84 T=0.49 C=0.51
Other Asian Sub 24 T=0.50 C=0.50
Latin American 1 Sub 146 T=0.438 C=0.562
Latin American 2 Sub 610 T=0.480 C=0.520
South Asian Sub 94 T=0.50 C=0.50
Other Sub 478 T=0.471 C=0.529


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
14KJPN JAPANESE Study-wide 28256 T=0.50563 C=0.49437
8.3KJPN JAPANESE Study-wide 16760 T=0.49684 C=0.50316
Allele Frequency Aggregator Total Global 16332 T=0.48035 C=0.51965
Allele Frequency Aggregator European Sub 12080 T=0.47798 C=0.52202
Allele Frequency Aggregator African Sub 2816 T=0.4933 C=0.5067
Allele Frequency Aggregator Latin American 2 Sub 610 T=0.480 C=0.520
Allele Frequency Aggregator Other Sub 478 T=0.471 C=0.529
Allele Frequency Aggregator Latin American 1 Sub 146 T=0.438 C=0.562
Allele Frequency Aggregator Asian Sub 108 T=0.491 C=0.509
Allele Frequency Aggregator South Asian Sub 94 T=0.50 C=0.50
KOREAN population from KRGDB KOREAN Study-wide 2922 T=0.4983 C=0.5017
SGDP_PRJ Global Study-wide 538 T=0.478 C=0.522
Qatari Global Study-wide 212 T=0.679 C=0.321
The Danish reference pan genome Danish Study-wide 40 T=0.45 C=0.55
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 1 NC_000001.11:g.104033T>C
GRCh37.p13 chr 1 NC_000001.10:g.104033T>C
Gene: LOC124903816, uncharacterized LOC124903816 (plus strand)
Molecule type Change Amino acid[Codon] SO Term
LOC124903816 transcript variant X1 XR_007065337.1:n. N/A Intron Variant
LOC124903816 transcript variant X2 XR_007065338.1:n. N/A Intron Variant
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 1 NC_000001.11:g.104033= NC_000001.11:g.104033T>C
GRCh37.p13 chr 1 NC_000001.10:g.104033= NC_000001.10:g.104033T>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#.

23 SubSNP, 7 Frequency submissions
No Submitter Submission ID Date (Build)
1 SC_JCM ss5672050 Feb 20, 2003 (111)
2 BCMHGSC_JDW ss87153462 Mar 25, 2008 (129)
3 BGI ss102713367 Dec 01, 2009 (147)
4 ENSEMBL ss131826374 Dec 01, 2009 (147)
5 GMI ss154521924 Dec 01, 2009 (147)
6 GMI ss157739734 Dec 01, 2009 (147)
7 GMI ss275680005 May 04, 2012 (137)
8 GMI ss283987250 Apr 25, 2013 (138)
9 EVA_GENOME_DK ss1573850783 Apr 01, 2015 (144)
10 WEILL_CORNELL_DGM ss1917958618 Feb 12, 2016 (147)
11 GRF ss2697373230 Nov 08, 2017 (151)
12 GNOMAD ss2750608535 Nov 08, 2017 (151)
13 SWEGEN ss2986142864 Nov 08, 2017 (151)
14 URBANLAB ss3646580480 Oct 11, 2018 (152)
15 SGDP_PRJ ss3847985467 Apr 25, 2020 (154)
16 KRGDB ss3892825270 Apr 25, 2020 (154)
17 TOMMO_GENOMICS ss5142035566 Apr 25, 2021 (155)
18 EVA ss5316173302 Oct 12, 2022 (156)
19 SANFORD_IMAGENETICS ss5624743524 Oct 12, 2022 (156)
20 TOMMO_GENOMICS ss5666168788 Oct 12, 2022 (156)
21 YY_MCH ss5800240938 Oct 12, 2022 (156)
22 EVA ss5831416911 Oct 12, 2022 (156)
23 EVA ss5979925922 Oct 12, 2022 (156)
24 The Danish reference pan genome NC_000001.10 - 104033 Apr 25, 2020 (154)
25 KOREAN population from KRGDB NC_000001.10 - 104033 Apr 25, 2020 (154)
26 Qatari NC_000001.10 - 104033 Apr 25, 2020 (154)
27 SGDP_PRJ NC_000001.10 - 104033 Apr 25, 2020 (154)
28 8.3KJPN NC_000001.10 - 104033 Apr 25, 2021 (155)
29 14KJPN NC_000001.11 - 104033 Oct 12, 2022 (156)
30 ALFA NC_000001.11 - 104033 Apr 25, 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)
rs74836402 Jul 19, 2016 (147)
Added to this RefSNP Cluster:
Submission IDs Observation SPDI Canonical SPDI Source RSIDs
ss87153462, ss275680005, ss283987250 NC_000001.9:93895:T:C NC_000001.11:104032:T:C (self)
1358017, 2664, 548, 2447, 4873, ss1573850783, ss1917958618, ss2697373230, ss2750608535, ss2986142864, ss3847985467, ss3892825270, ss5142035566, ss5316173302, ss5624743524, ss5831416911, ss5979925922 NC_000001.10:104032:T:C NC_000001.11:104032:T:C (self)
5892, 3354541951, ss3646580480, ss5666168788, ss5800240938 NC_000001.11:104032:T:C NC_000001.11:104032:T:C (self)
ss5672050, ss102713367, ss131826374, ss154521924, ss157739734 NT_077402.2:94032:T:C NC_000001.11:104032: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 rs4287120

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