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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.

rs768703295

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr14:99715936 (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=0.000004 (1/246874, GnomAD_exome)
A=0.000007 (1/136628, GnomAD)
A=0.000009 (1/116008, ExAC) (+ 1 more)
A=0.00000 (0/10680, ALFA)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
CYP46A1 : Missense 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 10680 G=1.00000 A=0.00000
European Sub 6962 G=1.0000 A=0.0000
African Sub 2294 G=1.0000 A=0.0000
African Others Sub 84 G=1.00 A=0.00
African American Sub 2210 G=1.0000 A=0.0000
Asian Sub 108 G=1.000 A=0.000
East Asian Sub 84 G=1.00 A=0.00
Other Asian Sub 24 G=1.00 A=0.00
Latin American 1 Sub 146 G=1.000 A=0.000
Latin American 2 Sub 610 G=1.000 A=0.000
South Asian Sub 94 G=1.00 A=0.00
Other Sub 466 G=1.000 A=0.000


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
gnomAD - Exomes Global Study-wide 246874 G=0.999996 A=0.000004
gnomAD - Exomes European Sub 132910 G=0.999992 A=0.000008
gnomAD - Exomes Asian Sub 47960 G=1.00000 A=0.00000
gnomAD - Exomes American Sub 34200 G=1.00000 A=0.00000
gnomAD - Exomes African Sub 16104 G=1.00000 A=0.00000
gnomAD - Exomes Ashkenazi Jewish Sub 9674 G=1.0000 A=0.0000
gnomAD - Exomes Other Sub 6026 G=1.0000 A=0.0000
gnomAD - Genomes Global Study-wide 136628 G=0.999993 A=0.000007
gnomAD - Genomes European Sub 73008 G=1.00000 A=0.00000
gnomAD - Genomes African Sub 41732 G=0.99998 A=0.00002
gnomAD - Genomes American Sub 13532 G=1.00000 A=0.00000
gnomAD - Genomes Ashkenazi Jewish Sub 3218 G=1.0000 A=0.0000
gnomAD - Genomes East Asian Sub 3030 G=1.0000 A=0.0000
gnomAD - Genomes Other Sub 2108 G=1.0000 A=0.0000
ExAC Global Study-wide 116008 G=0.999991 A=0.000009
ExAC Europe Sub 71180 G=0.99999 A=0.00001
ExAC Asian Sub 22540 G=1.00000 A=0.00000
ExAC American Sub 11468 G=1.00000 A=0.00000
ExAC African Sub 9978 G=1.0000 A=0.0000
ExAC Other Sub 842 G=1.000 A=0.000
Allele Frequency Aggregator Total Global 10680 G=1.00000 A=0.00000
Allele Frequency Aggregator European Sub 6962 G=1.0000 A=0.0000
Allele Frequency Aggregator African Sub 2294 G=1.0000 A=0.0000
Allele Frequency Aggregator Latin American 2 Sub 610 G=1.000 A=0.000
Allele Frequency Aggregator Other Sub 466 G=1.000 A=0.000
Allele Frequency Aggregator Latin American 1 Sub 146 G=1.000 A=0.000
Allele Frequency Aggregator Asian Sub 108 G=1.000 A=0.000
Allele Frequency Aggregator South Asian Sub 94 G=1.00 A=0.00
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 14 NC_000014.9:g.99715936G>A
GRCh37.p13 chr 14 NC_000014.8:g.100182273G>A
CYP46A1 RefSeqGene NG_007963.1:g.36519G>A
Gene: CYP46A1, cytochrome P450 family 46 subfamily A member 1 (plus strand)
Molecule type Change Amino acid[Codon] SO Term
CYP46A1 transcript NM_006668.2:c.820G>A D [GAC] > N [AAC] Coding Sequence Variant
cholesterol 24-hydroxylase NP_006659.1:p.Asp274Asn D (Asp) > N (Asn) Missense Variant
CYP46A1 transcript variant X1 XM_011536364.2:c.820G>A D [GAC] > N [AAC] Coding Sequence Variant
cholesterol 24-hydroxylase isoform X1 XP_011534666.1:p.Asp274Asn D (Asp) > N (Asn) Missense Variant
CYP46A1 transcript variant X2 XM_017020933.3:c.706G>A D [GAC] > N [AAC] Coding Sequence Variant
cholesterol 24-hydroxylase isoform X2 XP_016876422.1:p.Asp236Asn D (Asp) > N (Asn) Missense Variant
CYP46A1 transcript variant X3 XM_005267274.6:c.385G>A D [GAC] > N [AAC] Coding Sequence Variant
cholesterol 24-hydroxylase isoform X3 XP_005267331.1:p.Asp129Asn D (Asp) > N (Asn) Missense Variant
CYP46A1 transcript variant X4 XM_011536365.3:c.361G>A D [GAC] > N [AAC] Coding Sequence Variant
cholesterol 24-hydroxylase isoform X4 XP_011534667.1:p.Asp121Asn D (Asp) > N (Asn) Missense 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 14 NC_000014.9:g.99715936= NC_000014.9:g.99715936G>A
GRCh37.p13 chr 14 NC_000014.8:g.100182273= NC_000014.8:g.100182273G>A
CYP46A1 RefSeqGene NG_007963.1:g.36519= NG_007963.1:g.36519G>A
CYP46A1 transcript NM_006668.2:c.820= NM_006668.2:c.820G>A
CYP46A1 transcript NM_006668.1:c.820= NM_006668.1:c.820G>A
CYP46A1 transcript variant X3 XM_005267274.6:c.385= XM_005267274.6:c.385G>A
CYP46A1 transcript variant X3 XM_005267274.5:c.385= XM_005267274.5:c.385G>A
CYP46A1 transcript variant X3 XM_005267274.4:c.385= XM_005267274.4:c.385G>A
CYP46A1 transcript variant X2 XM_005267274.3:c.385= XM_005267274.3:c.385G>A
CYP46A1 transcript variant X1 XM_005267274.2:c.385= XM_005267274.2:c.385G>A
CYP46A1 transcript variant X1 XM_005267274.1:c.385= XM_005267274.1:c.385G>A
CYP46A1 transcript variant X4 XM_011536365.3:c.361= XM_011536365.3:c.361G>A
CYP46A1 transcript variant X4 XM_011536365.2:c.361= XM_011536365.2:c.361G>A
CYP46A1 transcript variant X4 XM_011536365.1:c.361= XM_011536365.1:c.361G>A
CYP46A1 transcript variant X2 XM_017020933.3:c.706= XM_017020933.3:c.706G>A
CYP46A1 transcript variant X2 XM_017020933.2:c.706= XM_017020933.2:c.706G>A
CYP46A1 transcript variant X2 XM_017020933.1:c.706= XM_017020933.1:c.706G>A
CYP46A1 transcript variant X1 XM_011536364.2:c.820= XM_011536364.2:c.820G>A
CYP46A1 transcript variant X1 XM_011536364.1:c.820= XM_011536364.1:c.820G>A
cholesterol 24-hydroxylase NP_006659.1:p.Asp274= NP_006659.1:p.Asp274Asn
cholesterol 24-hydroxylase isoform X3 XP_005267331.1:p.Asp129= XP_005267331.1:p.Asp129Asn
cholesterol 24-hydroxylase isoform X4 XP_011534667.1:p.Asp121= XP_011534667.1:p.Asp121Asn
cholesterol 24-hydroxylase isoform X2 XP_016876422.1:p.Asp236= XP_016876422.1:p.Asp236Asn
cholesterol 24-hydroxylase isoform X1 XP_011534666.1:p.Asp274= XP_011534666.1:p.Asp274Asn
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#.

3 SubSNP, 4 Frequency submissions
No Submitter Submission ID Date (Build)
1 EVA_EXAC ss1691625511 Apr 01, 2015 (144)
2 GNOMAD ss2740939138 Nov 08, 2017 (151)
3 GNOMAD ss4283911808 Apr 27, 2021 (155)
4 ExAC NC_000014.8 - 100182273 Oct 12, 2018 (152)
5 gnomAD - Genomes NC_000014.9 - 99715936 Apr 27, 2021 (155)
6 gnomAD - Exomes NC_000014.8 - 100182273 Jul 13, 2019 (153)
7 ALFA NC_000014.9 - 99715936 Apr 27, 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
1982595, 10197924, ss1691625511, ss2740939138 NC_000014.8:100182272:G:A NC_000014.9:99715935:G:A (self)
461014575, 6070767259, ss4283911808 NC_000014.9:99715935:G:A NC_000014.9:99715935: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 rs768703295

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