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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.

rs200738933

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr2:232543372 (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=0.000200 (53/264690, TOPMED)
A=0.000024 (6/251204, GnomAD_exome)
A=0.000143 (20/140174, GnomAD) (+ 5 more)
A=0.000017 (2/119554, ExAC)
A=0.00008 (3/35406, ALFA)
A=0.0003 (2/6404, 1000G_30x)
A=0.0002 (1/5008, 1000G)
A=0.005 (1/216, Vietnamese)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
CHRNG : 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 51766 G=0.99992 A=0.00008
European Sub 36652 G=0.99992 A=0.00008
African Sub 7756 G=0.9999 A=0.0001
African Others Sub 298 G=1.000 A=0.000
African American Sub 7458 G=0.9999 A=0.0001
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 6020 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=0.999800 A=0.000200
gnomAD - Exomes Global Study-wide 251204 G=0.999976 A=0.000024
gnomAD - Exomes European Sub 135222 G=0.999963 A=0.000037
gnomAD - Exomes Asian Sub 48994 G=1.00000 A=0.00000
gnomAD - Exomes American Sub 34552 G=0.99997 A=0.00003
gnomAD - Exomes African Sub 16230 G=1.00000 A=0.00000
gnomAD - Exomes Ashkenazi Jewish Sub 10072 G=1.00000 A=0.00000
gnomAD - Exomes Other Sub 6134 G=1.0000 A=0.0000
gnomAD - Genomes Global Study-wide 140174 G=0.999857 A=0.000143
gnomAD - Genomes European Sub 75924 G=0.99987 A=0.00013
gnomAD - Genomes African Sub 41992 G=0.99995 A=0.00005
gnomAD - Genomes American Sub 13650 G=0.99949 A=0.00051
gnomAD - Genomes Ashkenazi Jewish Sub 3322 G=1.0000 A=0.0000
gnomAD - Genomes East Asian Sub 3134 G=1.0000 A=0.0000
gnomAD - Genomes Other Sub 2152 G=0.9995 A=0.0005
ExAC Global Study-wide 119554 G=0.999983 A=0.000017
ExAC Europe Sub 72186 G=0.99997 A=0.00003
ExAC Asian Sub 24908 G=1.00000 A=0.00000
ExAC American Sub 11366 G=1.00000 A=0.00000
ExAC African Sub 10204 G=1.00000 A=0.00000
ExAC Other Sub 890 G=1.000 A=0.000
Allele Frequency Aggregator Total Global 35406 G=0.99992 A=0.00008
Allele Frequency Aggregator European Sub 26564 G=0.99989 A=0.00011
Allele Frequency Aggregator Other Sub 4586 G=1.0000 A=0.0000
Allele Frequency Aggregator African Sub 2918 G=1.0000 A=0.0000
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
1000Genomes_30x Global Study-wide 6404 G=0.9997 A=0.0003
1000Genomes_30x African Sub 1786 G=1.0000 A=0.0000
1000Genomes_30x Europe Sub 1266 G=0.9984 A=0.0016
1000Genomes_30x South Asian Sub 1202 G=1.0000 A=0.0000
1000Genomes_30x East Asian Sub 1170 G=1.0000 A=0.0000
1000Genomes_30x American Sub 980 G=1.000 A=0.000
1000Genomes Global Study-wide 5008 G=0.9998 A=0.0002
1000Genomes African Sub 1322 G=1.0000 A=0.0000
1000Genomes East Asian Sub 1008 G=1.0000 A=0.0000
1000Genomes Europe Sub 1006 G=0.9990 A=0.0010
1000Genomes South Asian Sub 978 G=1.000 A=0.000
1000Genomes American Sub 694 G=1.000 A=0.000
A Vietnamese Genetic Variation Database Global Study-wide 216 G=0.995 A=0.005
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 2 NC_000002.12:g.232543372G>A
GRCh37.p13 chr 2 NC_000002.11:g.233408082G>A
CHRNG RefSeqGene (LRG_1275) NG_012954.2:g.8681G>A
Gene: CHRNG, cholinergic receptor nicotinic gamma subunit (plus strand)
Molecule type Change Amino acid[Codon] SO Term
CHRNG transcript NM_005199.5:c.903G>A A [GCG] > A [GCA] Coding Sequence Variant
acetylcholine receptor subunit gamma precursor NP_005190.4:p.Ala301= 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.

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 G= A
GRCh38.p14 chr 2 NC_000002.12:g.232543372= NC_000002.12:g.232543372G>A
GRCh37.p13 chr 2 NC_000002.11:g.233408082= NC_000002.11:g.233408082G>A
CHRNG RefSeqGene (LRG_1275) NG_012954.2:g.8681= NG_012954.2:g.8681G>A
CHRNG transcript NM_005199.5:c.903= NM_005199.5:c.903G>A
CHRNG transcript NM_005199.4:c.903= NM_005199.4:c.903G>A
acetylcholine receptor subunit gamma precursor NP_005190.4:p.Ala301= NP_005190.4:p.Ala301=
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#.

14 SubSNP, 8 Frequency submissions
No Submitter Submission ID Date (Build)
1 1000GENOMES ss488741996 May 04, 2012 (137)
2 1000GENOMES ss1302097600 Aug 21, 2014 (142)
3 EVA_EXAC ss1686789271 Apr 01, 2015 (144)
4 HUMAN_LONGEVITY ss2240089063 Dec 20, 2016 (150)
5 GNOMAD ss2733416104 Nov 08, 2017 (151)
6 GNOMAD ss2746905183 Nov 08, 2017 (151)
7 GNOMAD ss2787609194 Nov 08, 2017 (151)
8 KHV_HUMAN_GENOMES ss3802585626 Jul 13, 2019 (153)
9 TOPMED ss4548531808 Apr 26, 2021 (155)
10 1000G_HIGH_COVERAGE ss5252430288 Oct 12, 2022 (156)
11 EVA ss5336765306 Oct 12, 2022 (156)
12 HUGCELL_USP ss5452002286 Oct 12, 2022 (156)
13 1000G_HIGH_COVERAGE ss5529971753 Oct 12, 2022 (156)
14 EVA ss5935163429 Oct 12, 2022 (156)
15 1000Genomes NC_000002.11 - 233408082 Oct 11, 2018 (152)
16 1000Genomes_30x NC_000002.12 - 232543372 Oct 12, 2022 (156)
17 ExAC NC_000002.11 - 233408082 Oct 11, 2018 (152)
18 gnomAD - Genomes NC_000002.12 - 232543372 Apr 26, 2021 (155)
19 gnomAD - Exomes NC_000002.11 - 233408082 Jul 13, 2019 (153)
20 TopMed NC_000002.12 - 232543372 Apr 26, 2021 (155)
21 A Vietnamese Genetic Variation Database NC_000002.11 - 233408082 Jul 13, 2019 (153)
22 ALFA NC_000002.12 - 232543372 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).

Added to this RefSNP Cluster:
Submission IDs Observation SPDI Canonical SPDI Source RSIDs
13219301, 6697977, 2484721, 1589234, ss488741996, ss1302097600, ss1686789271, ss2733416104, ss2746905183, ss2787609194, ss5336765306 NC_000002.11:233408081:G:A NC_000002.12:232543371:G:A (self)
17497688, 94202556, 352354687, 7805934593, ss2240089063, ss3802585626, ss4548531808, ss5252430288, ss5452002286, ss5529971753, ss5935163429 NC_000002.12:232543371:G:A NC_000002.12:232543371: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 rs200738933

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