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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.

rs748853941

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr1:97699487 (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
T>C / T>G
Variation Type
SNV Single Nucleotide Variation
Frequency
G=0.000004 (1/250934, GnomAD_exome)
C=0.000008 (1/121338, ExAC)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
DPYD : Missense Variant
Publications
0 citations
Genomic View
See rs on genome
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 250934 T=0.999996 G=0.000004
gnomAD - Exomes European Sub 135042 T=1.000000 G=0.000000
gnomAD - Exomes Asian Sub 48952 T=0.99998 G=0.00002
gnomAD - Exomes American Sub 34530 T=1.00000 G=0.00000
gnomAD - Exomes African Sub 16244 T=1.00000 G=0.00000
gnomAD - Exomes Ashkenazi Jewish Sub 10050 T=1.00000 G=0.00000
gnomAD - Exomes Other Sub 6116 T=1.0000 G=0.0000
ExAC Global Study-wide 121338 T=0.999992 C=0.000008
ExAC Europe Sub 73310 T=1.00000 C=0.00000
ExAC Asian Sub 25156 T=0.99996 C=0.00004
ExAC American Sub 11570 T=1.00000 C=0.00000
ExAC African Sub 10394 T=1.00000 C=0.00000
ExAC Other Sub 908 T=1.000 C=0.000
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 1 NC_000001.11:g.97699487T>C
GRCh38.p14 chr 1 NC_000001.11:g.97699487T>G
GRCh37.p13 chr 1 NC_000001.10:g.98165043T>C
GRCh37.p13 chr 1 NC_000001.10:g.98165043T>G
DPYD RefSeqGene (LRG_722) NG_008807.2:g.226573A>G
DPYD RefSeqGene (LRG_722) NG_008807.2:g.226573A>C
Gene: DPYD, dihydropyrimidine dehydrogenase (minus strand)
Molecule type Change Amino acid[Codon] SO Term
DPYD transcript variant 2 NM_001160301.1:c. N/A Genic Downstream Transcript Variant
DPYD transcript variant 1 NM_000110.4:c.544A>G M [ATG] > V [GTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform 1 NP_000101.2:p.Met182Val M (Met) > V (Val) Missense Variant
DPYD transcript variant 1 NM_000110.4:c.544A>C M [ATG] > L [CTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform 1 NP_000101.2:p.Met182Leu M (Met) > L (Leu) Missense Variant
DPYD transcript variant X2 XM_005270562.3:c.544A>G M [ATG] > V [GTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X2 XP_005270619.2:p.Met182Val M (Met) > V (Val) Missense Variant
DPYD transcript variant X2 XM_005270562.3:c.544A>C M [ATG] > L [CTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X2 XP_005270619.2:p.Met182Leu M (Met) > L (Leu) Missense Variant
DPYD transcript variant X1 XM_017000507.2:c.433A>G M [ATG] > V [GTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X1 XP_016855996.1:p.Met145Val M (Met) > V (Val) Missense Variant
DPYD transcript variant X1 XM_017000507.2:c.433A>C M [ATG] > L [CTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X1 XP_016855996.1:p.Met145Leu M (Met) > L (Leu) Missense Variant
DPYD transcript variant X3 XM_047448076.1:c.316A>G M [ATG] > V [GTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X3 XP_047304032.1:p.Met106Val M (Met) > V (Val) Missense Variant
DPYD transcript variant X3 XM_047448076.1:c.316A>C M [ATG] > L [CTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X3 XP_047304032.1:p.Met106Leu M (Met) > L (Leu) Missense Variant
DPYD transcript variant X4 XM_047448077.1:c.433A>G M [ATG] > V [GTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X4 XP_047304033.1:p.Met145Val M (Met) > V (Val) Missense Variant
DPYD transcript variant X4 XM_047448077.1:c.433A>C M [ATG] > L [CTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X4 XP_047304033.1:p.Met145Leu M (Met) > L (Leu) Missense Variant
DPYD transcript variant X5 XM_006710397.4:c.544A>G M [ATG] > V [GTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X5 XP_006710460.1:p.Met182Val M (Met) > V (Val) Missense Variant
DPYD transcript variant X5 XM_006710397.4:c.544A>C M [ATG] > L [CTG] Coding Sequence Variant
dihydropyrimidine dehydrogenase [NADP(+)] isoform X5 XP_006710460.1:p.Met182Leu M (Met) > L (Leu) Missense Variant
DPYD transcript variant X6 XR_001737014.2:n.783A>G N/A Non Coding Transcript Variant
DPYD transcript variant X6 XR_001737014.2:n.783A>C N/A Non Coding Transcript 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 T= C G
GRCh38.p14 chr 1 NC_000001.11:g.97699487= NC_000001.11:g.97699487T>C NC_000001.11:g.97699487T>G
GRCh37.p13 chr 1 NC_000001.10:g.98165043= NC_000001.10:g.98165043T>C NC_000001.10:g.98165043T>G
DPYD RefSeqGene (LRG_722) NG_008807.2:g.226573= NG_008807.2:g.226573A>G NG_008807.2:g.226573A>C
DPYD transcript variant 1 NM_000110.4:c.544= NM_000110.4:c.544A>G NM_000110.4:c.544A>C
DPYD transcript variant 1 NM_000110.3:c.544= NM_000110.3:c.544A>G NM_000110.3:c.544A>C
DPYD transcript variant X5 XM_006710397.4:c.544= XM_006710397.4:c.544A>G XM_006710397.4:c.544A>C
DPYD transcript variant X3 XM_006710397.3:c.544= XM_006710397.3:c.544A>G XM_006710397.3:c.544A>C
DPYD transcript variant X2 XM_006710397.2:c.544= XM_006710397.2:c.544A>G XM_006710397.2:c.544A>C
DPYD transcript variant X3 XM_006710397.1:c.544= XM_006710397.1:c.544A>G XM_006710397.1:c.544A>C
DPYD transcript variant X2 XM_005270562.3:c.544= XM_005270562.3:c.544A>G XM_005270562.3:c.544A>C
DPYD transcript variant X2 XM_005270562.2:c.544= XM_005270562.2:c.544A>G XM_005270562.2:c.544A>C
DPYD transcript variant X2 XM_005270562.1:c.544= XM_005270562.1:c.544A>G XM_005270562.1:c.544A>C
DPYD transcript variant X1 XM_017000507.2:c.433= XM_017000507.2:c.433A>G XM_017000507.2:c.433A>C
DPYD transcript variant X1 XM_017000507.1:c.433= XM_017000507.1:c.433A>G XM_017000507.1:c.433A>C
DPYD transcript variant X6 XR_001737014.2:n.783= XR_001737014.2:n.783A>G XR_001737014.2:n.783A>C
DPYD transcript variant X3 XM_047448076.1:c.316= XM_047448076.1:c.316A>G XM_047448076.1:c.316A>C
DPYD transcript variant X4 XM_047448077.1:c.433= XM_047448077.1:c.433A>G XM_047448077.1:c.433A>C
dihydropyrimidine dehydrogenase [NADP(+)] isoform 1 NP_000101.2:p.Met182= NP_000101.2:p.Met182Val NP_000101.2:p.Met182Leu
dihydropyrimidine dehydrogenase [NADP(+)] isoform X5 XP_006710460.1:p.Met182= XP_006710460.1:p.Met182Val XP_006710460.1:p.Met182Leu
dihydropyrimidine dehydrogenase [NADP(+)] isoform X2 XP_005270619.2:p.Met182= XP_005270619.2:p.Met182Val XP_005270619.2:p.Met182Leu
dihydropyrimidine dehydrogenase [NADP(+)] isoform X1 XP_016855996.1:p.Met145= XP_016855996.1:p.Met145Val XP_016855996.1:p.Met145Leu
dihydropyrimidine dehydrogenase [NADP(+)] isoform X3 XP_047304032.1:p.Met106= XP_047304032.1:p.Met106Val XP_047304032.1:p.Met106Leu
dihydropyrimidine dehydrogenase [NADP(+)] isoform X4 XP_047304033.1:p.Met145= XP_047304033.1:p.Met145Val XP_047304033.1:p.Met145Leu
dihydropyrimidine dehydrogenase [NADP(+)] isoform X2 XP_005270619.1:p.Met182= XP_005270619.1:p.Met182Val XP_005270619.1:p.Met182Leu
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#.

2 SubSNP, 2 Frequency submissions
No Submitter Submission ID Date (Build)
1 EVA_EXAC ss1685650344 Apr 01, 2015 (144)
2 GNOMAD ss2731657550 Nov 08, 2017 (151)
3 ExAC NC_000001.10 - 98165043 Oct 11, 2018 (152)
4 gnomAD - Exomes NC_000001.10 - 98165043 Jul 12, 2019 (153)
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
4856277, ss1685650344 NC_000001.10:98165042:T:C NC_000001.11:97699486:T:C (self)
679166, ss2731657550 NC_000001.10:98165042:T:G NC_000001.11:97699486:T:G (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 rs748853941

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