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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
chr1:13445 (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.

C>G / C>T
Variation Type
SNV Single Nucleotide Variation
G=0.000310 (38/122740, GnomAD_exome)
G=0.000252 (29/115200, GnomAD)
G=0.00075 (19/25316, ALFA) (+ 2 more)
G=0.0010 (8/7942, ExAC)
G=0.0006 (3/5008, 1000G)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
DDX11L1 : Non Coding Transcript Variant
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.13445C>G
GRCh38.p13 chr 1 NC_000001.11:g.13445C>T
GRCh37.p13 chr 1 NC_000001.10:g.13445C>G
GRCh37.p13 chr 1 NC_000001.10:g.13445C>T
Gene: DDX11L1, DEAD/H-box helicase 11 like 1 (pseudogene) (plus strand)
Molecule type Change Amino acid[Codon] SO Term
DDX11L1 transcript NR_046018.2:n.688C>G N/A Non Coding Transcript Variant
DDX11L1 transcript NR_046018.2:n.688C>T N/A Non Coding Transcript Variant

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 (New)
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 25316 C=0.99925 G=0.00075
European Sub 18142 C=0.99934 G=0.00066
African Sub 3410 C=0.9994 G=0.0006
African Others Sub 116 C=1.000 G=0.000
African American Sub 3294 C=0.9994 G=0.0006
Asian Sub 164 C=1.000 G=0.000
East Asian Sub 110 C=1.000 G=0.000
Other Asian Sub 54 C=1.00 G=0.00
Latin American 1 Sub 146 C=1.000 G=0.000
Latin American 2 Sub 610 C=1.000 G=0.000
South Asian Sub 94 C=1.00 G=0.00
Other Sub 2750 C=0.9982 G=0.0018


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 - Exomes Global Study-wide 122740 C=0.999690 G=0.000310
gnomAD - Exomes European Sub 52926 C=0.99968 G=0.00032
gnomAD - Exomes Asian Sub 31526 C=0.99990 G=0.00010
gnomAD - Exomes American Sub 20648 C=0.99956 G=0.00044
gnomAD - Exomes Ashkenazi Jewish Sub 7312 C=0.9999 G=0.0001
gnomAD - Exomes African Sub 6580 C=1.0000 G=0.0000
gnomAD - Exomes Other Sub 3748 C=0.9979 G=0.0021
gnomAD - Genomes Global Study-wide 115200 C=0.999748 G=0.000252
gnomAD - Genomes European Sub 57846 C=0.99955 G=0.00045
gnomAD - Genomes African Sub 39918 C=0.99997 G=0.00003
gnomAD - Genomes American Sub 10380 C=0.99981 G=0.00019
gnomAD - Genomes East Asian Sub 2928 C=1.0000 G=0.0000
gnomAD - Genomes Ashkenazi Jewish Sub 2450 C=1.0000 G=0.0000
gnomAD - Genomes Other Sub 1678 C=1.0000 G=0.0000
ExAC Global Study-wide 7942 C=0.9990 G=0.0010
ExAC Asian Sub 5408 C=0.9998 G=0.0002
ExAC Europe Sub 1998 C=0.9965 G=0.0035
ExAC African Sub 364 C=1.000 G=0.000
ExAC Other Sub 90 C=1.00 G=0.00
ExAC American Sub 82 C=1.00 G=0.00
1000Genomes Global Study-wide 5008 C=0.9994 G=0.0006
1000Genomes African Sub 1322 C=1.0000 G=0.0000
1000Genomes East Asian Sub 1008 C=1.0000 G=0.0000
1000Genomes Europe Sub 1006 C=0.9990 G=0.0010
1000Genomes South Asian Sub 978 C=0.998 G=0.002
1000Genomes American Sub 694 C=1.000 G=0.000

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 C= G T
GRCh38.p13 chr 1 NC_000001.11:g.13445= NC_000001.11:g.13445C>G NC_000001.11:g.13445C>T
GRCh37.p13 chr 1 NC_000001.10:g.13445= NC_000001.10:g.13445C>G NC_000001.10:g.13445C>T
DDX11L1 transcript NR_046018.2:n.688= NR_046018.2:n.688C>G NR_046018.2:n.688C>T

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#.

6 SubSNP, 5 Frequency submissions
No Submitter Submission ID Date (Build)
1 1000GENOMES ss1289335463 Aug 21, 2014 (142)
2 EVA_EXAC ss1685216829 Apr 01, 2015 (144)
3 GNOMAD ss2730985323 Nov 08, 2017 (151)
4 GNOMAD ss2746168616 Nov 08, 2017 (151)
5 GNOMAD ss2750601156 Nov 08, 2017 (151)
6 TOPMED ss3066316480 Nov 08, 2017 (151)
7 1000Genomes NC_000001.10 - 13445 Oct 11, 2018 (152)
8 ExAC NC_000001.10 - 13445 Oct 11, 2018 (152)
9 gnomAD - Genomes NC_000001.11 - 13445 Apr 25, 2021 (155)
10 gnomAD - Exomes NC_000001.10 - 13445 Jul 12, 2019 (153)
11 ALFA NC_000001.11 - 13445 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
29, 4389898, 23, ss1289335463, ss1685216829, ss2730985323, ss2746168616, ss2750601156 NC_000001.10:13444:C:G NC_000001.11:13444:C:G (self)
795, 11427199573, ss3066316480 NC_000001.11:13444:C:G NC_000001.11:13444:C:G (self)
ss2730985323 NC_000001.10:13444:C:T NC_000001.11:13444:C:T (self)

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

No publications for rs558318514


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