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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.

rs143797098

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr18:23556299 (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 / G>C
Variation Type
SNV Single Nucleotide Variation
Frequency
A=0.000011 (3/264690, TOPMED)
A=0.000008 (2/251380, GnomAD_exome)
A=0.000007 (1/140180, GnomAD) (+ 2 more)
C=0.00008 (1/13006, GO-ESP)
A=0.00000 (0/10680, ALFA)
Clinical Significance
Reported in ClinVar
Gene : Consequence
NPC1 : 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
TopMed Global Study-wide 264690 G=0.999989 A=0.000011
gnomAD - Exomes Global Study-wide 251380 G=0.999992 A=0.000008
gnomAD - Exomes European Sub 135320 G=1.000000 A=0.000000
gnomAD - Exomes Asian Sub 49010 G=0.99996 A=0.00004
gnomAD - Exomes American Sub 34584 G=1.00000 A=0.00000
gnomAD - Exomes African Sub 16256 G=1.00000 A=0.00000
gnomAD - Exomes Ashkenazi Jewish Sub 10076 G=1.00000 A=0.00000
gnomAD - Exomes Other Sub 6134 G=1.0000 A=0.0000
gnomAD - Genomes Global Study-wide 140180 G=0.999993 A=0.000007
gnomAD - Genomes European Sub 75926 G=1.00000 A=0.00000
gnomAD - Genomes African Sub 42010 G=1.00000 A=0.00000
gnomAD - Genomes American Sub 13640 G=1.00000 A=0.00000
gnomAD - Genomes Ashkenazi Jewish Sub 3320 G=1.0000 A=0.0000
gnomAD - Genomes East Asian Sub 3132 G=0.9997 A=0.0003
gnomAD - Genomes Other Sub 2152 G=1.0000 A=0.0000
GO Exome Sequencing Project Global Study-wide 13006 G=0.99992 C=0.00008
GO Exome Sequencing Project European American Sub 8600 G=0.9999 C=0.0001
GO Exome Sequencing Project African American Sub 4406 G=1.0000 C=0.0000
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 18 NC_000018.10:g.23556299G>A
GRCh38.p14 chr 18 NC_000018.10:g.23556299G>C
GRCh37.p13 chr 18 NC_000018.9:g.21136263G>A
GRCh37.p13 chr 18 NC_000018.9:g.21136263G>C
NPC1 RefSeqGene NG_012795.1:g.35319C>T
NPC1 RefSeqGene NG_012795.1:g.35319C>G
Gene: NPC1, NPC intracellular cholesterol transporter 1 (minus strand)
Molecule type Change Amino acid[Codon] SO Term
NPC1 transcript NM_000271.5:c.1270C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 precursor NP_000262.2:p.Pro424Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript NM_000271.5:c.1270C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 precursor NP_000262.2:p.Pro424Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X1 XM_005258277.1:c.1321C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X1 XP_005258334.1:p.Pro441Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X1 XM_005258277.1:c.1321C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X1 XP_005258334.1:p.Pro441Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X4 XM_017025784.1:c.1321C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X4 XP_016881273.1:p.Pro441Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X4 XM_017025784.1:c.1321C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X4 XP_016881273.1:p.Pro441Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X6 XM_017025785.1:c.1321C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X6 XP_016881274.1:p.Pro441Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X6 XM_017025785.1:c.1321C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X6 XP_016881274.1:p.Pro441Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X2 XM_005258278.6:c.1321C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X2 XP_005258335.1:p.Pro441Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X2 XM_005258278.6:c.1321C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X2 XP_005258335.1:p.Pro441Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X3 XM_005258279.3:c.1270C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X3 XP_005258336.1:p.Pro424Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X3 XM_005258279.3:c.1270C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X3 XP_005258336.1:p.Pro424Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X5 XM_006722479.4:c.1321C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X5 XP_006722542.1:p.Pro441Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X5 XM_006722479.4:c.1321C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X5 XP_006722542.1:p.Pro441Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X7 XM_017025786.2:c.1270C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X7 XP_016881275.1:p.Pro424Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X7 XM_017025786.2:c.1270C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X7 XP_016881275.1:p.Pro424Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X8 XM_017025787.2:c.1270C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X8 XP_016881276.1:p.Pro424Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X8 XM_017025787.2:c.1270C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X8 XP_016881276.1:p.Pro424Ala P (Pro) > A (Ala) Missense Variant
NPC1 transcript variant X9 XM_047437539.1:c.1270C>T P [CCT] > S [TCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X9 XP_047293495.1:p.Pro424Ser P (Pro) > S (Ser) Missense Variant
NPC1 transcript variant X9 XM_047437539.1:c.1270C>G P [CCT] > A [GCT] Coding Sequence Variant
NPC intracellular cholesterol transporter 1 isoform X9 XP_047293495.1:p.Pro424Ala P (Pro) > A (Ala) 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.

Allele: A (allele ID: 1056488 )
ClinVar Accession Disease Names Clinical Significance
RCV001377029.2 Niemann-Pick disease, type C1 Pathogenic
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 C
GRCh38.p14 chr 18 NC_000018.10:g.23556299= NC_000018.10:g.23556299G>A NC_000018.10:g.23556299G>C
GRCh37.p13 chr 18 NC_000018.9:g.21136263= NC_000018.9:g.21136263G>A NC_000018.9:g.21136263G>C
NPC1 RefSeqGene NG_012795.1:g.35319= NG_012795.1:g.35319C>T NG_012795.1:g.35319C>G
NPC1 transcript NM_000271.5:c.1270= NM_000271.5:c.1270C>T NM_000271.5:c.1270C>G
NPC1 transcript NM_000271.4:c.1270= NM_000271.4:c.1270C>T NM_000271.4:c.1270C>G
NPC1 transcript variant X2 XM_005258278.6:c.1321= XM_005258278.6:c.1321C>T XM_005258278.6:c.1321C>G
NPC1 transcript variant X2 XM_005258278.5:c.1321= XM_005258278.5:c.1321C>T XM_005258278.5:c.1321C>G
NPC1 transcript variant X2 XM_005258278.4:c.1321= XM_005258278.4:c.1321C>T XM_005258278.4:c.1321C>G
NPC1 transcript variant X2 XM_005258278.3:c.1321= XM_005258278.3:c.1321C>T XM_005258278.3:c.1321C>G
NPC1 transcript variant X2 XM_005258278.2:c.1321= XM_005258278.2:c.1321C>T XM_005258278.2:c.1321C>G
NPC1 transcript variant X2 XM_005258278.1:c.1321= XM_005258278.1:c.1321C>T XM_005258278.1:c.1321C>G
NPC1 transcript variant X5 XM_006722479.4:c.1321= XM_006722479.4:c.1321C>T XM_006722479.4:c.1321C>G
NPC1 transcript variant X5 XM_006722479.3:c.1321= XM_006722479.3:c.1321C>T XM_006722479.3:c.1321C>G
NPC1 transcript variant X4 XM_006722479.2:c.1321= XM_006722479.2:c.1321C>T XM_006722479.2:c.1321C>G
NPC1 transcript variant X4 XM_006722479.1:c.1321= XM_006722479.1:c.1321C>T XM_006722479.1:c.1321C>G
NPC1 transcript variant X3 XM_005258279.3:c.1270= XM_005258279.3:c.1270C>T XM_005258279.3:c.1270C>G
NPC1 transcript variant X3 XM_005258279.2:c.1270= XM_005258279.2:c.1270C>T XM_005258279.2:c.1270C>G
NPC1 transcript variant X3 XM_005258279.1:c.1270= XM_005258279.1:c.1270C>T XM_005258279.1:c.1270C>G
NPC1 transcript variant X7 XM_017025786.2:c.1270= XM_017025786.2:c.1270C>T XM_017025786.2:c.1270C>G
NPC1 transcript variant X7 XM_017025786.1:c.1270= XM_017025786.1:c.1270C>T XM_017025786.1:c.1270C>G
NPC1 transcript variant X8 XM_017025787.2:c.1270= XM_017025787.2:c.1270C>T XM_017025787.2:c.1270C>G
NPC1 transcript variant X8 XM_017025787.1:c.1270= XM_017025787.1:c.1270C>T XM_017025787.1:c.1270C>G
NPC1 transcript variant X4 XM_017025784.1:c.1321= XM_017025784.1:c.1321C>T XM_017025784.1:c.1321C>G
NPC1 transcript variant X6 XM_017025785.1:c.1321= XM_017025785.1:c.1321C>T XM_017025785.1:c.1321C>G
NPC1 transcript variant X9 XM_047437539.1:c.1270= XM_047437539.1:c.1270C>T XM_047437539.1:c.1270C>G
NPC1 transcript variant X1 XM_005258277.1:c.1321= XM_005258277.1:c.1321C>T XM_005258277.1:c.1321C>G
NPC intracellular cholesterol transporter 1 precursor NP_000262.2:p.Pro424= NP_000262.2:p.Pro424Ser NP_000262.2:p.Pro424Ala
NPC intracellular cholesterol transporter 1 isoform X2 XP_005258335.1:p.Pro441= XP_005258335.1:p.Pro441Ser XP_005258335.1:p.Pro441Ala
NPC intracellular cholesterol transporter 1 isoform X5 XP_006722542.1:p.Pro441= XP_006722542.1:p.Pro441Ser XP_006722542.1:p.Pro441Ala
NPC intracellular cholesterol transporter 1 isoform X3 XP_005258336.1:p.Pro424= XP_005258336.1:p.Pro424Ser XP_005258336.1:p.Pro424Ala
NPC intracellular cholesterol transporter 1 isoform X7 XP_016881275.1:p.Pro424= XP_016881275.1:p.Pro424Ser XP_016881275.1:p.Pro424Ala
NPC intracellular cholesterol transporter 1 isoform X8 XP_016881276.1:p.Pro424= XP_016881276.1:p.Pro424Ser XP_016881276.1:p.Pro424Ala
NPC intracellular cholesterol transporter 1 isoform X4 XP_016881273.1:p.Pro441= XP_016881273.1:p.Pro441Ser XP_016881273.1:p.Pro441Ala
NPC intracellular cholesterol transporter 1 isoform X6 XP_016881274.1:p.Pro441= XP_016881274.1:p.Pro441Ser XP_016881274.1:p.Pro441Ala
NPC intracellular cholesterol transporter 1 isoform X9 XP_047293495.1:p.Pro424= XP_047293495.1:p.Pro424Ser XP_047293495.1:p.Pro424Ala
NPC intracellular cholesterol transporter 1 isoform X1 XP_005258334.1:p.Pro441= XP_005258334.1:p.Pro441Ser XP_005258334.1:p.Pro441Ala
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#.

7 SubSNP, 5 Frequency, 1 ClinVar submissions
No Submitter Submission ID Date (Build)
1 NHLBI-ESP ss342472262 May 09, 2011 (134)
2 GNOMAD ss2743225119 Nov 08, 2017 (151)
3 GNOMAD ss2749936311 Nov 08, 2017 (151)
4 GNOMAD ss2954770032 Nov 08, 2017 (151)
5 ILLUMINA ss3744452728 Jul 13, 2019 (153)
6 EVA ss3825182844 Apr 27, 2020 (154)
7 TOPMED ss5050630165 Apr 27, 2021 (155)
8 gnomAD - Genomes NC_000018.10 - 23556299 Apr 27, 2021 (155)
9 gnomAD - Exomes NC_000018.9 - 21136263 Jul 13, 2019 (153)
10 GO Exome Sequencing Project NC_000018.9 - 21136263 Oct 12, 2018 (152)
11 TopMed NC_000018.10 - 23556299 Apr 27, 2021 (155)
12 ALFA NC_000018.10 - 23556299 Apr 27, 2021 (155)
13 ClinVar RCV001377029.2 Oct 16, 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
12535413, ss2743225119, ss2749936311, ss2954770032 NC_000018.9:21136262:G:A NC_000018.10:23556298:G:A (self)
RCV001377029.2, 519613572, 266175828, 14439725176, ss5050630165 NC_000018.10:23556298:G:A NC_000018.10:23556298:G:A (self)
1639868, ss342472262, ss3744452728, ss3825182844 NC_000018.9:21136262:G:C NC_000018.10:23556298:G: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 rs143797098

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