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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.

rs148878126

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr7:117664816 (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
G>A
Variation Type
SNV Single Nucleotide Variation
Frequency
A=0.000117 (31/264690, TOPMED)
A=0.000044 (11/251248, GnomAD_exome)
A=0.000121 (17/140186, GnomAD) (+ 3 more)
A=0.000049 (6/121374, ExAC)
A=0.00011 (4/35426, ALFA)
A=0.00015 (2/13006, GO-ESP)
Clinical Significance
Reported in ClinVar
Gene : Consequence
CFTR : Synonymous 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 35426 G=0.99989 A=0.00011
European Sub 26582 G=0.99989 A=0.00011
African Sub 2918 G=0.9997 A=0.0003
African Others Sub 114 G=1.000 A=0.000
African American Sub 2804 G=0.9996 A=0.0004
Asian Sub 112 G=1.000 A=0.000
East Asian Sub 86 G=1.00 A=0.00
Other Asian Sub 26 G=1.00 A=0.00
Latin American 1 Sub 500 G=1.000 A=0.000
Latin American 2 Sub 628 G=1.000 A=0.000
South Asian Sub 98 G=1.00 A=0.00
Other Sub 4588 G=1.0000 A=0.0000


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 G=0.999883 A=0.000117
gnomAD - Exomes Global Study-wide 251248 G=0.999956 A=0.000044
gnomAD - Exomes European Sub 135202 G=0.999956 A=0.000044
gnomAD - Exomes Asian Sub 49008 G=0.99998 A=0.00002
gnomAD - Exomes American Sub 34574 G=0.99997 A=0.00003
gnomAD - Exomes African Sub 16254 G=0.99988 A=0.00012
gnomAD - Exomes Ashkenazi Jewish Sub 10076 G=1.00000 A=0.00000
gnomAD - Exomes Other Sub 6134 G=0.9998 A=0.0002
gnomAD - Genomes Global Study-wide 140186 G=0.999879 A=0.000121
gnomAD - Genomes European Sub 75924 G=0.99993 A=0.00007
gnomAD - Genomes African Sub 42016 G=0.99974 A=0.00026
gnomAD - Genomes American Sub 13636 G=1.00000 A=0.00000
gnomAD - Genomes Ashkenazi Jewish Sub 3324 G=1.0000 A=0.0000
gnomAD - Genomes East Asian Sub 3132 G=1.0000 A=0.0000
gnomAD - Genomes Other Sub 2154 G=0.9995 A=0.0005
ExAC Global Study-wide 121374 G=0.999951 A=0.000049
ExAC Europe Sub 73348 G=0.99996 A=0.00004
ExAC Asian Sub 25160 G=0.99996 A=0.00004
ExAC American Sub 11554 G=1.00000 A=0.00000
ExAC African Sub 10404 G=0.99981 A=0.00019
ExAC Other Sub 908 G=1.000 A=0.000
Allele Frequency Aggregator Total Global 35426 G=0.99989 A=0.00011
Allele Frequency Aggregator European Sub 26582 G=0.99989 A=0.00011
Allele Frequency Aggregator Other Sub 4588 G=1.0000 A=0.0000
Allele Frequency Aggregator African Sub 2918 G=0.9997 A=0.0003
Allele Frequency Aggregator Latin American 2 Sub 628 G=1.000 A=0.000
Allele Frequency Aggregator Latin American 1 Sub 500 G=1.000 A=0.000
Allele Frequency Aggregator Asian Sub 112 G=1.000 A=0.000
Allele Frequency Aggregator South Asian Sub 98 G=1.00 A=0.00
GO Exome Sequencing Project Global Study-wide 13006 G=0.99985 A=0.00015
GO Exome Sequencing Project European American Sub 8600 G=1.0000 A=0.0000
GO Exome Sequencing Project African American Sub 4406 G=0.9995 A=0.0005
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 7 NC_000007.14:g.117664816G>A
GRCh37.p13 chr 7 NC_000007.13:g.117304870G>A
CFTR RefSeqGene (LRG_663) NG_016465.4:g.204033G>A
Gene: CFTR, CF transmembrane conductance regulator (plus strand)
Molecule type Change Amino acid[Codon] SO Term
CFTR transcript NM_000492.4:c.4092G>A A [GCG] > A [GCA] Coding Sequence Variant
cystic fibrosis transmembrane conductance regulator NP_000483.3:p.Ala1364= A (Ala) > A (Ala) Synonymous 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.

Allele: A (allele ID: 44547 )
ClinVar Accession Disease Names Clinical Significance
RCV000029538.10 Cystic fibrosis Likely-Benign
RCV001000017.6 not specified Likely-Benign
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 G= A
GRCh38.p14 chr 7 NC_000007.14:g.117664816= NC_000007.14:g.117664816G>A
GRCh37.p13 chr 7 NC_000007.13:g.117304870= NC_000007.13:g.117304870G>A
CFTR RefSeqGene (LRG_663) NG_016465.4:g.204033= NG_016465.4:g.204033G>A
CFTR transcript NM_000492.4:c.4092= NM_000492.4:c.4092G>A
CFTR transcript NM_000492.3:c.4092= NM_000492.3:c.4092G>A
cystic fibrosis transmembrane conductance regulator NP_000483.3:p.Ala1364= NP_000483.3:p.Ala1364=
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#.

8 SubSNP, 6 Frequency, 2 ClinVar submissions
No Submitter Submission ID Date (Build)
1 NHLBI-ESP ss342245329 May 09, 2011 (134)
2 CORRELAGEN ss472343502 Nov 18, 2011 (136)
3 EVA_EXAC ss1688918508 Apr 01, 2015 (144)
4 GNOMAD ss2736721901 Nov 08, 2017 (151)
5 GNOMAD ss2747910761 Nov 08, 2017 (151)
6 GNOMAD ss2858219906 Nov 08, 2017 (151)
7 EVA ss3824311844 Apr 26, 2020 (154)
8 TOPMED ss4760979961 Apr 26, 2021 (155)
9 ExAC NC_000007.13 - 117304870 Oct 12, 2018 (152)
10 gnomAD - Genomes NC_000007.14 - 117664816 Apr 26, 2021 (155)
11 gnomAD - Exomes NC_000007.13 - 117304870 Jul 13, 2019 (153)
12 GO Exome Sequencing Project NC_000007.13 - 117304870 Oct 12, 2018 (152)
13 TopMed NC_000007.14 - 117664816 Apr 26, 2021 (155)
14 ALFA NC_000007.14 - 117664816 Apr 26, 2021 (155)
15 ClinVar RCV000029538.10 Oct 13, 2022 (156)
16 ClinVar RCV001000017.6 Oct 13, 2022 (156)
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).

Added to this RefSNP Cluster:
Submission IDs Observation SPDI Canonical SPDI Source RSIDs
8998618, 5885183, 769735, ss342245329, ss1688918508, ss2736721901, ss2747910761, ss2858219906, ss3824311844 NC_000007.13:117304869:G:A NC_000007.14:117664815:G:A (self)
RCV000029538.10, RCV001000017.6, 274355603, 598357520, 7627841098, ss472343502, ss4760979961 NC_000007.14:117664815:G:A NC_000007.14:117664815:G:A (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 rs148878126

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