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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.

rs56161402

Current Build 157

Released September 3, 2024

Organism
Homo sapiens
Position
chr6:18130762 (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
C>T
Variation Type
SNV Single Nucleotide Variation
Frequency
T=0.0007376 (1033/1400564, GnomAD_exomes)
T=0.008024 (2124/264690, TOPMED)
T=0.002634 (407/154542, ALFA) (+ 11 more)
T=0.006896 (1029/149226, GnomAD_genomes)
T=0.002040 (247/121096, ExAC)
T=0.01062 (836/78700, PAGE_STUDY)
T=0.0070 (45/6404, 1000G_30X)
T=0.0056 (28/5008, 1000G)
T=0.0003 (1/3854, ALSPAC)
T=0.0000 (0/3708, TWINSUK)
T=0.0083 (27/3240, PRJNA289433)
T=0.004 (2/534, MGP)
C=0.5 (2/4, SGDP_PRJ)
T=0.5 (2/4, SGDP_PRJ)
Clinical Significance
Reported in ClinVar
Gene : Consequence
TPMT : Missense Variant
Publications
8 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: 20231103111315
Population Group Sample Size Ref Allele Alt Allele Ref HMOZ Alt HMOZ HTRZ HWEP
Total Global 154542 C=0.997366 T=0.002634 0.994772 3.9e-05 0.00519 7
European Sub 125940 C=0.999277 T=0.000723 0.998555 0.0 0.001445 0
African Sub 11760 C=0.97526 T=0.02474 0.95102 0.00051 0.048469 0
African Others Sub 410 C=0.968 T=0.032 0.936585 0.0 0.063415 0
African American Sub 11350 C=0.97551 T=0.02449 0.951542 0.000529 0.04793 0
Asian Sub 240 C=1.000 T=0.000 1.0 0.0 0.0 N/A
East Asian Sub 154 C=1.000 T=0.000 1.0 0.0 0.0 N/A
Other Asian Sub 86 C=1.00 T=0.00 1.0 0.0 0.0 N/A
Latin American 1 Sub 588 C=0.997 T=0.003 0.993197 0.0 0.006803 0
Latin American 2 Sub 1192 C=0.9975 T=0.0025 0.994966 0.0 0.005034 0
South Asian Sub 126 C=1.000 T=0.000 1.0 0.0 0.0 N/A
Other Sub 14696 C=0.99864 T=0.00136 0.997278 0.0 0.002722 0


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 v4 - Exomes Global Study-wide 1400564 C=0.9992624 T=0.0007376
gnomAD v4 - Exomes European Sub 1164824 C=0.9998369 T=0.0001631
gnomAD v4 - Exomes South Asian Sub 86228 C=0.99994 T=0.00006
gnomAD v4 - Exomes American Sub 44716 C=0.99875 T=0.00125
gnomAD v4 - Exomes East Asian Sub 39640 C=1.00000 T=0.00000
gnomAD v4 - Exomes African Sub 33446 C=0.97671 T=0.02329
gnomAD v4 - Exomes Ashkenazi Jewish Sub 26118 C=1.00000 T=0.00000
gnomAD v4 - Exomes Middle Eastern sub 5592 C=0.9995 T=0.0005
TopMed Global Study-wide 264690 C=0.991976 T=0.008024
Allele Frequency Aggregator Total Global 154542 C=0.997366 T=0.002634
Allele Frequency Aggregator European Sub 125940 C=0.999277 T=0.000723
Allele Frequency Aggregator Other Sub 14696 C=0.99864 T=0.00136
Allele Frequency Aggregator African Sub 11760 C=0.97526 T=0.02474
Allele Frequency Aggregator Latin American 2 Sub 1192 C=0.9975 T=0.0025
Allele Frequency Aggregator Latin American 1 Sub 588 C=0.997 T=0.003
Allele Frequency Aggregator Asian Sub 240 C=1.000 T=0.000
Allele Frequency Aggregator South Asian Sub 126 C=1.000 T=0.000
gnomAD v4 - Genomes Global Study-wide 149226 C=0.993104 T=0.006896
gnomAD v4 - Genomes European Sub 78628 C=0.99982 T=0.00018
gnomAD v4 - Genomes African Sub 41540 C=0.97670 T=0.02330
gnomAD v4 - Genomes American Sub 15288 C=0.99693 T=0.00307
gnomAD v4 - Genomes East Asian Sub 5188 C=1.0000 T=0.0000
gnomAD v4 - Genomes South Asian Sub 4820 C=1.0000 T=0.0000
gnomAD v4 - Genomes Ashkenazi Jewish Sub 3468 C=1.0000 T=0.0000
gnomAD v4 - Genomes Middle Eastern sub 294 C=1.000 T=0.000
ExAC Global Study-wide 121096 C=0.997960 T=0.002040
ExAC Europe Sub 73252 C=0.99992 T=0.00008
ExAC Asian Sub 25150 C=0.99996 T=0.00004
ExAC American Sub 11562 C=0.99957 T=0.00043
ExAC African Sub 10230 C=0.97713 T=0.02287
ExAC Other Sub 902 C=0.999 T=0.001
The PAGE Study Global Study-wide 78700 C=0.98938 T=0.01062
The PAGE Study AfricanAmerican Sub 32516 C=0.97798 T=0.02202
The PAGE Study Mexican Sub 10810 C=0.99778 T=0.00222
The PAGE Study Asian Sub 8316 C=0.9999 T=0.0001
The PAGE Study PuertoRican Sub 7918 C=0.9944 T=0.0056
The PAGE Study NativeHawaiian Sub 4534 C=0.9993 T=0.0007
The PAGE Study Cuban Sub 4230 C=0.9969 T=0.0031
The PAGE Study Dominican Sub 3828 C=0.9932 T=0.0068
The PAGE Study CentralAmerican Sub 2450 C=0.9984 T=0.0016
The PAGE Study SouthAmerican Sub 1982 C=0.9990 T=0.0010
The PAGE Study NativeAmerican Sub 1260 C=0.9976 T=0.0024
The PAGE Study SouthAsian Sub 856 C=1.000 T=0.000
1000Genomes_30X Global Study-wide 6404 C=0.9930 T=0.0070
1000Genomes_30X African Sub 1786 C=0.9765 T=0.0235
1000Genomes_30X Europe Sub 1266 C=1.0000 T=0.0000
1000Genomes_30X South Asian Sub 1202 C=1.0000 T=0.0000
1000Genomes_30X East Asian Sub 1170 C=1.0000 T=0.0000
1000Genomes_30X American Sub 980 C=0.997 T=0.003
1000Genomes Global Study-wide 5008 C=0.9944 T=0.0056
1000Genomes African Sub 1322 C=0.9803 T=0.0197
1000Genomes East Asian Sub 1008 C=1.0000 T=0.0000
1000Genomes Europe Sub 1006 C=1.0000 T=0.0000
1000Genomes South Asian Sub 978 C=1.000 T=0.000
1000Genomes American Sub 694 C=0.997 T=0.003
The Avon Longitudinal Study of Parents and Children PARENT AND CHILD COHORT Study-wide 3854 C=0.9997 T=0.0003
UK 10K study - Twins TWIN COHORT Study-wide 3708 C=1.0000 T=0.0000
MxGDAR/Encodat-PGx Global Study-wide 3240 C=0.9917 T=0.0083
MxGDAR/Encodat-PGx MxGDAR Sub 3240 C=0.9917 T=0.0083
Medical Genome Project healthy controls from Spanish population Spanish controls Study-wide 534 C=0.996 T=0.004
SGDP_PRJ Global Study-wide 4 C=0.5 T=0.5
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 6 NC_000006.12:g.18130762C>T
GRCh37.p13 chr 6 NC_000006.11:g.18130993C>T
TPMT RefSeqGene (LRG_874) NG_012137.3:g.29382G>A
Gene: TPMT, thiopurine S-methyltransferase (minus strand)
Molecule type Change Amino acid[Codon] SO Term
TPMT transcript variant 2 NM_001346817.1:c.644G>A R [CGT] > H [CAT] Coding Sequence Variant
thiopurine S-methyltransferase isoform 1 NP_001333746.1:p.Arg215His R (Arg) > H (His) Missense Variant
TPMT transcript variant 3 NM_001346818.1:c.599G>A R [CGT] > H [CAT] Coding Sequence Variant
thiopurine S-methyltransferase isoform 2 NP_001333747.1:p.Arg200His R (Arg) > H (His) Missense Variant
TPMT transcript variant 1 NM_000367.5:c.644G>A R [CGT] > H [CAT] Coding Sequence Variant
thiopurine S-methyltransferase isoform 1 NP_000358.1:p.Arg215His R (Arg) > H (His) Missense Variant
TPMT transcript variant X1 XM_047419289.1:c.644G>A R [CGT] > H [CAT] Coding Sequence Variant
thiopurine S-methyltransferase isoform X1 XP_047275245.1:p.Arg215His R (Arg) > H (His) Missense Variant
TPMT transcript variant X2 XM_047419290.1:c.599G>A R [CGT] > H [CAT] Coding Sequence Variant
thiopurine S-methyltransferase isoform X2 XP_047275246.1:p.Arg200His R (Arg) > H (His) 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: T (allele ID: 27765 )
ClinVar Accession Disease Names Clinical Significance
RCV000013563.24 Thiopurine S-methyltransferase deficiency Drug-Response
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 C= T
GRCh38.p14 chr 6 NC_000006.12:g.18130762= NC_000006.12:g.18130762C>T
GRCh37.p13 chr 6 NC_000006.11:g.18130993= NC_000006.11:g.18130993C>T
TPMT RefSeqGene (LRG_874) NG_012137.3:g.29382= NG_012137.3:g.29382G>A
TPMT transcript variant 1 NM_000367.5:c.644= NM_000367.5:c.644G>A
TPMT transcript variant 1 NM_000367.4:c.644= NM_000367.4:c.644G>A
TPMT transcript NM_000367.3:c.644= NM_000367.3:c.644G>A
TPMT transcript NM_000367.2:c.644= NM_000367.2:c.644G>A
TPMT transcript variant 2 NM_001346817.1:c.644= NM_001346817.1:c.644G>A
TPMT transcript variant 3 NM_001346818.1:c.599= NM_001346818.1:c.599G>A
TPMT transcript variant X1 XM_047419289.1:c.644= XM_047419289.1:c.644G>A
TPMT transcript variant X2 XM_047419290.1:c.599= XM_047419290.1:c.599G>A
thiopurine S-methyltransferase isoform 1 NP_000358.1:p.Arg215= NP_000358.1:p.Arg215His
thiopurine S-methyltransferase isoform 1 NP_001333746.1:p.Arg215= NP_001333746.1:p.Arg215His
thiopurine S-methyltransferase isoform 2 NP_001333747.1:p.Arg200= NP_001333747.1:p.Arg200His
thiopurine S-methyltransferase isoform X1 XP_047275245.1:p.Arg215= XP_047275245.1:p.Arg215His
thiopurine S-methyltransferase isoform X2 XP_047275246.1:p.Arg200= XP_047275246.1:p.Arg200His
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#.

67 SubSNP, 13 Frequency, 1 ClinVar submissions
No Submitter Submission ID Date (Build)
1 ILLUMINA ss75259731 Dec 07, 2007 (129)
2 AFFY_DM3_1 ss105434635 Feb 06, 2009 (130)
3 SNP500CANCER ss105439598 Feb 06, 2009 (130)
4 ILLUMINA ss152536523 Dec 01, 2009 (131)
5 ILLUMINA ss159102655 Dec 01, 2009 (131)
6 ILLUMINA ss169135713 Jul 04, 2010 (132)
7 ILLUMINA ss169483327 Jul 04, 2010 (132)
8 1000GENOMES ss222237859 Jul 14, 2010 (132)
9 OMIM-CURATED-RECORDS ss275515910 Nov 29, 2010 (133)
10 NHLBI-ESP ss342202118 May 09, 2011 (134)
11 1000GENOMES ss490920223 May 04, 2012 (137)
12 EXOME_CHIP ss491378157 May 04, 2012 (137)
13 ILLUMINA ss537652739 Sep 08, 2015 (146)
14 ILLUMINA ss780845866 Sep 08, 2015 (146)
15 ILLUMINA ss783529413 Sep 08, 2015 (146)
16 ILLUMINA ss832615451 Jul 13, 2019 (153)
17 1000GENOMES ss1319172551 Aug 21, 2014 (142)
18 EVA_UK10K_ALSPAC ss1615060467 Apr 01, 2015 (144)
19 EVA_UK10K_TWINSUK ss1658054500 Apr 01, 2015 (144)
20 EVA_EXAC ss1688172351 Apr 01, 2015 (144)
21 EVA_MGP ss1711113285 Apr 01, 2015 (144)
22 ILLUMINA ss1752617945 Sep 08, 2015 (146)
23 ILLUMINA ss1917799664 Feb 12, 2016 (147)
24 ILLUMINA ss1946168664 Feb 12, 2016 (147)
25 ILLUMINA ss1958867441 Feb 12, 2016 (147)
26 ILLUMINA ss2634407228 Nov 08, 2017 (151)
27 GNOMAD ss2735561451 Nov 08, 2017 (151)
28 GNOMAD ss2747554045 Nov 08, 2017 (151)
29 GNOMAD ss2836353085 Nov 08, 2017 (151)
30 AFFY ss2985354996 Nov 08, 2017 (151)
31 AFFY ss2985984177 Nov 08, 2017 (151)
32 ILLUMINA ss3022579691 Nov 08, 2017 (151)
33 ILLUMINA ss3629456170 Oct 12, 2018 (152)
34 ILLUMINA ss3629456171 Oct 12, 2018 (152)
35 ILLUMINA ss3635046784 Oct 12, 2018 (152)
36 ILLUMINA ss3638610049 Oct 12, 2018 (152)
37 ILLUMINA ss3638610050 Oct 12, 2018 (152)
38 ILLUMINA ss3640754080 Oct 12, 2018 (152)
39 ILLUMINA ss3643551625 Oct 12, 2018 (152)
40 ILLUMINA ss3644901728 Oct 12, 2018 (152)
41 ILLUMINA ss3653088305 Oct 12, 2018 (152)
42 ILLUMINA ss3654123227 Oct 12, 2018 (152)
43 ILLUMINA ss3726314859 Jul 13, 2019 (153)
44 ILLUMINA ss3744546293 Jul 13, 2019 (153)
45 ILLUMINA ss3745346870 Jul 13, 2019 (153)
46 PAGE_CC ss3771266097 Jul 13, 2019 (153)
47 ILLUMINA ss3772840659 Jul 13, 2019 (153)
48 KHV_HUMAN_GENOMES ss3807838504 Jul 13, 2019 (153)
49 EVA ss3824158471 Apr 26, 2020 (154)
50 SGDP_PRJ ss3864022756 Apr 26, 2020 (154)
51 EVA ss3984448409 Apr 26, 2021 (155)
52 TOPMED ss4695324311 Apr 26, 2021 (155)
53 EVA ss6234522861 Nov 02, 2024 (157)
54 EVA ss6297653895 Nov 02, 2024 (157)
55 EVA ss6404345177 Nov 02, 2024 (157)
56 GNOMAD ss6426751113 Nov 02, 2024 (157)
57 GNOMAD ss6707992233 Nov 02, 2024 (157)
58 1000G_HIGH_COVERAGE ss8267581184 Nov 02, 2024 (157)
59 EVA ss8364130891 Nov 02, 2024 (157)
60 HUGCELL_USP ss8465357063 Nov 02, 2024 (157)
61 EVA ss8512473844 Nov 02, 2024 (157)
62 1000G_HIGH_COVERAGE ss8553086967 Nov 02, 2024 (157)
63 SANFORD_IMAGENETICS ss8639870341 Nov 02, 2024 (157)
64 EVA ss8848082768 Nov 02, 2024 (157)
65 EVA ss8882860666 Nov 02, 2024 (157)
66 EVA ss8968372678 Nov 02, 2024 (157)
67 EVA ss8982518781 Nov 02, 2024 (157)
68 1000Genomes NC_000006.11 - 18130993 Oct 12, 2018 (152)
69 1000Genomes_30X NC_000006.12 - 18130762 Nov 02, 2024 (157)
70 The Avon Longitudinal Study of Parents and Children NC_000006.11 - 18130993 Oct 12, 2018 (152)
71 ExAC NC_000006.11 - 18130993 Oct 12, 2018 (152)
72 gnomAD v4 - Exomes NC_000006.12 - 18130762 Nov 02, 2024 (157)
73 gnomAD v4 - Genomes NC_000006.12 - 18130762 Nov 02, 2024 (157)
74 Medical Genome Project healthy controls from Spanish population NC_000006.11 - 18130993 Apr 26, 2020 (154)
75 The PAGE Study NC_000006.12 - 18130762 Jul 13, 2019 (153)
76 MxGDAR/Encodat-PGx NC_000006.11 - 18130993 Apr 26, 2021 (155)
77 SGDP_PRJ NC_000006.11 - 18130993 Apr 26, 2020 (154)
78 TopMed NC_000006.12 - 18130762 Apr 26, 2021 (155)
79 UK 10K study - Twins NC_000006.11 - 18130993 Oct 12, 2018 (152)
80 ALFA NC_000006.12 - 18130762 Nov 02, 2024 (157)
81 ClinVar RCV000013563.24 Jul 13, 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
ss3643551625 NC_000006.10:18238971:C:T NC_000006.12:18130761:C:T (self)
30923633, 17225117, 8192339, 229045, 1410, 16039736, 17225117, ss222237859, ss342202118, ss490920223, ss491378157, ss537652739, ss780845866, ss783529413, ss832615451, ss1319172551, ss1615060467, ss1658054500, ss1688172351, ss1711113285, ss1752617945, ss1917799664, ss1946168664, ss1958867441, ss2634407228, ss2735561451, ss2747554045, ss2836353085, ss2985354996, ss2985984177, ss3022579691, ss3629456170, ss3629456171, ss3635046784, ss3638610049, ss3638610050, ss3640754080, ss3644901728, ss3653088305, ss3654123227, ss3744546293, ss3745346870, ss3772840659, ss3824158471, ss3864022756, ss3984448409, ss6234522861, ss6297653895, ss8364130891, ss8512473844, ss8639870341, ss8848082768, ss8968372678, ss8982518781 NC_000006.11:18130992:C:T NC_000006.12:18130761:C:T (self)
RCV000013563.24, 40612902, 22062060, 234761796, 487566, 532701869, 12545072190, ss275515910, ss3726314859, ss3771266097, ss3807838504, ss4695324311, ss6404345177, ss6426751113, ss6707992233, ss8267581184, ss8465357063, ss8553086967, ss8882860666 NC_000006.12:18130761:C:T NC_000006.12:18130761:C:T (self)
ss75259731, ss105434635, ss105439598, ss152536523, ss159102655, ss169135713, ss169483327 NT_007592.15:18070992:C:T NC_000006.12:18130761:C:T (self)
Help

Publications tab displays PubMed articles citing the variation as a listing of PMID, Title, Author, Year, Journal, ordered by Year, descending.

8 citations for rs56161402
PMID Title Author Year Journal
9931346 Polymorphism of the thiopurine S-methyltransferase gene in African-Americans. Hon YY et al. 1999 Human molecular genetics
24762746 New genetic biomarkers predicting azathioprine blood concentrations in combination therapy with 5-aminosalicylic acid. Uchiyama K et al. 2014 PloS one
24860591 Imputation of TPMT defective alleles for the identification of patients with high-risk phenotypes. Almoguera B et al. 2014 Frontiers in genetics
25741362 Use of pharmacogenomics in pediatric renal transplant recipients. Medeiros M et al. 2015 Frontiers in genetics
29681089 Genetic variation in biotransformation enzymes, air pollution exposures, and risk of spina bifida. Padula AM et al. 2018 American journal of medical genetics. Part A
34412101 Comprehensive characterization of pharmacogenetic variants in TPMT and NUDT15 in children with acute lymphoblastic leukemia. Moriyama T et al. 2022 Pharmacogenetics and genomics
34621706 Comprehensive analysis of important pharmacogenes in Koreans using the DMET™ platform. Kim B et al. 2021 Translational and clinical pharmacology
35089958 Identification of pharmacogenetic variants from large scale next generation sequencing data in the Saudi population. Goljan E et al. 2022 PloS one
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.post825+45319f0