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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.

rs2738778

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr20:63660477 (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>G / C>T
Variation Type
SNV Single Nucleotide Variation
Frequency
T=0.171586 (45417/264690, TOPMED)
T=0.169161 (23711/140168, GnomAD)
T=0.48273 (13641/28258, 14KJPN) (+ 16 more)
T=0.48628 (8150/16760, 8.3KJPN)
T=0.10052 (1551/15430, ALFA)
T=0.2110 (1351/6404, 1000G_30x)
T=0.2194 (1099/5008, 1000G)
T=0.1768 (792/4480, Estonian)
T=0.2317 (893/3854, ALSPAC)
T=0.2376 (881/3708, TWINSUK)
T=0.4730 (1386/2930, KOREAN)
T=0.4645 (851/1832, Korea1K)
T=0.267 (266/998, GoNL)
T=0.243 (146/600, NorthernSweden)
C=0.381 (102/268, SGDP_PRJ)
T=0.181 (39/216, Qatari)
T=0.362 (76/210, Vietnamese)
T=0.25 (10/40, GENOME_DK)
C=0.40 (12/30, Siberian)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
RTEL1 : Intron Variant
RTEL1-TNFRSF6B : Intron 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 15430 C=0.89948 G=0.00000, T=0.10052
European Sub 11554 C=0.87398 G=0.00000, T=0.12602
African Sub 2706 C=0.9812 G=0.0000, T=0.0188
African Others Sub 108 C=1.000 G=0.000, T=0.000
African American Sub 2598 C=0.9804 G=0.0000, T=0.0196
Asian Sub 34 C=0.88 G=0.00, T=0.12
East Asian Sub 26 C=0.92 G=0.00, T=0.08
Other Asian Sub 8 C=0.8 G=0.0, T=0.2
Latin American 1 Sub 106 C=1.000 G=0.000, T=0.000
Latin American 2 Sub 418 C=1.000 G=0.000, T=0.000
South Asian Sub 70 C=0.97 G=0.00, T=0.03
Other Sub 542 C=0.930 G=0.000, T=0.070


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 C=0.828414 T=0.171586
gnomAD - Genomes Global Study-wide 140168 C=0.830839 T=0.169161
gnomAD - Genomes European Sub 75902 C=0.78458 T=0.21542
gnomAD - Genomes African Sub 42024 C=0.93806 T=0.06194
gnomAD - Genomes American Sub 13650 C=0.83172 T=0.16828
gnomAD - Genomes Ashkenazi Jewish Sub 3318 C=0.7797 T=0.2203
gnomAD - Genomes East Asian Sub 3128 C=0.5665 T=0.4335
gnomAD - Genomes Other Sub 2146 C=0.8262 T=0.1738
14KJPN JAPANESE Study-wide 28258 C=0.51727 T=0.48273
8.3KJPN JAPANESE Study-wide 16760 C=0.51372 T=0.48628
Allele Frequency Aggregator Total Global 15430 C=0.89948 G=0.00000, T=0.10052
Allele Frequency Aggregator European Sub 11554 C=0.87398 G=0.00000, T=0.12602
Allele Frequency Aggregator African Sub 2706 C=0.9812 G=0.0000, T=0.0188
Allele Frequency Aggregator Other Sub 542 C=0.930 G=0.000, T=0.070
Allele Frequency Aggregator Latin American 2 Sub 418 C=1.000 G=0.000, T=0.000
Allele Frequency Aggregator Latin American 1 Sub 106 C=1.000 G=0.000, T=0.000
Allele Frequency Aggregator South Asian Sub 70 C=0.97 G=0.00, T=0.03
Allele Frequency Aggregator Asian Sub 34 C=0.88 G=0.00, T=0.12
1000Genomes_30x Global Study-wide 6404 C=0.7890 T=0.2110
1000Genomes_30x African Sub 1786 C=0.9748 T=0.0252
1000Genomes_30x Europe Sub 1266 C=0.7986 T=0.2014
1000Genomes_30x South Asian Sub 1202 C=0.7379 T=0.2621
1000Genomes_30x East Asian Sub 1170 C=0.5231 T=0.4769
1000Genomes_30x American Sub 980 C=0.818 T=0.182
1000Genomes Global Study-wide 5008 C=0.7806 T=0.2194
1000Genomes African Sub 1322 C=0.9735 T=0.0265
1000Genomes East Asian Sub 1008 C=0.5159 T=0.4841
1000Genomes Europe Sub 1006 C=0.7972 T=0.2028
1000Genomes South Asian Sub 978 C=0.745 T=0.255
1000Genomes American Sub 694 C=0.823 T=0.177
Genetic variation in the Estonian population Estonian Study-wide 4480 C=0.8232 T=0.1768
The Avon Longitudinal Study of Parents and Children PARENT AND CHILD COHORT Study-wide 3854 C=0.7683 T=0.2317
UK 10K study - Twins TWIN COHORT Study-wide 3708 C=0.7624 T=0.2376
KOREAN population from KRGDB KOREAN Study-wide 2930 C=0.5270 T=0.4730
Korean Genome Project KOREAN Study-wide 1832 C=0.5355 T=0.4645
Genome of the Netherlands Release 5 Genome of the Netherlands Study-wide 998 C=0.733 T=0.267
Northern Sweden ACPOP Study-wide 600 C=0.757 T=0.243
SGDP_PRJ Global Study-wide 268 C=0.381 T=0.619
Qatari Global Study-wide 216 C=0.819 T=0.181
A Vietnamese Genetic Variation Database Global Study-wide 210 C=0.638 T=0.362
The Danish reference pan genome Danish Study-wide 40 C=0.75 T=0.25
Siberian Global Study-wide 30 C=0.40 T=0.60
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 20 NC_000020.11:g.63660477C>G
GRCh38.p14 chr 20 NC_000020.11:g.63660477C>T
GRCh37.p13 chr 20 NC_000020.10:g.62291830C>G
GRCh37.p13 chr 20 NC_000020.10:g.62291830C>T
RTEL1 RefSeqGene (LRG_1149) NG_033901.1:g.7668C>G
RTEL1 RefSeqGene (LRG_1149) NG_033901.1:g.7668C>T
Gene: RTEL1, regulator of telomere elongation helicase 1 (plus strand)
Molecule type Change Amino acid[Codon] SO Term
RTEL1 transcript variant 3 NM_001283009.2:c.103-821C…

NM_001283009.2:c.103-821C>G

N/A Intron Variant
RTEL1 transcript variant 4 NM_001283010.1:c.-567-821…

NM_001283010.1:c.-567-821C>G

N/A Intron Variant
RTEL1 transcript variant 1 NM_016434.4:c.103-821C>G N/A Intron Variant
RTEL1 transcript variant 2 NM_032957.5:c.103-821C>G N/A Intron Variant
Gene: RTEL1-TNFRSF6B, RTEL1-TNFRSF6B readthrough (NMD candidate) (plus strand)
Molecule type Change Amino acid[Codon] SO Term
RTEL1-TNFRSF6B transcript NR_037882.1:n. N/A Intron 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 C= G T
GRCh38.p14 chr 20 NC_000020.11:g.63660477= NC_000020.11:g.63660477C>G NC_000020.11:g.63660477C>T
GRCh37.p13 chr 20 NC_000020.10:g.62291830= NC_000020.10:g.62291830C>G NC_000020.10:g.62291830C>T
RTEL1 RefSeqGene (LRG_1149) NG_033901.1:g.7668= NG_033901.1:g.7668C>G NG_033901.1:g.7668C>T
RTEL1 transcript variant 3 NM_001283009.2:c.103-821= NM_001283009.2:c.103-821C>G NM_001283009.2:c.103-821C>T
RTEL1 transcript variant 4 NM_001283010.1:c.-567-821= NM_001283010.1:c.-567-821C>G NM_001283010.1:c.-567-821C>T
RTEL1 transcript variant 1 NM_016434.3:c.103-821= NM_016434.3:c.103-821C>G NM_016434.3:c.103-821C>T
RTEL1 transcript variant 1 NM_016434.4:c.103-821= NM_016434.4:c.103-821C>G NM_016434.4:c.103-821C>T
RTEL1 transcript variant 2 NM_032957.4:c.103-821= NM_032957.4:c.103-821C>G NM_032957.4:c.103-821C>T
RTEL1 transcript variant 2 NM_032957.5:c.103-821= NM_032957.5:c.103-821C>G NM_032957.5:c.103-821C>T
RTEL1 transcript variant X1 XM_005260207.1:c.103-821= XM_005260207.1:c.103-821C>G XM_005260207.1:c.103-821C>T
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#.

61 SubSNP, 19 Frequency submissions
No Submitter Submission ID Date (Build)
1 SC_JCM ss3866066 Sep 28, 2001 (100)
2 SC_SNP ss8413246 Apr 21, 2003 (126)
3 SSAHASNP ss21770136 Apr 05, 2004 (126)
4 ABI ss41388631 Mar 11, 2006 (126)
5 HUMANGENOME_JCVI ss96207149 Feb 03, 2009 (130)
6 COMPLETE_GENOMICS ss168433702 Jul 04, 2010 (132)
7 BCM-HGSC-SUB ss208715683 Jul 04, 2010 (132)
8 1000GENOMES ss237902349 Jul 15, 2010 (132)
9 1000GENOMES ss244057770 Jul 15, 2010 (132)
10 BL ss255774174 May 09, 2011 (134)
11 GMI ss283446472 May 04, 2012 (137)
12 GMI ss287486341 Apr 25, 2013 (138)
13 PJP ss292599598 May 09, 2011 (134)
14 SSMP ss662250106 Apr 25, 2013 (138)
15 EVA-GONL ss994910208 Aug 21, 2014 (142)
16 JMKIDD_LAB ss1082340076 Aug 21, 2014 (142)
17 1000GENOMES ss1365496208 Aug 21, 2014 (142)
18 DDI ss1429107017 Apr 01, 2015 (144)
19 EVA_GENOME_DK ss1579578532 Apr 01, 2015 (144)
20 EVA_UK10K_ALSPAC ss1639167943 Apr 01, 2015 (144)
21 EVA_UK10K_TWINSUK ss1682161976 Apr 01, 2015 (144)
22 EVA_DECODE ss1698974998 Apr 01, 2015 (144)
23 WEILL_CORNELL_DGM ss1938433527 Feb 12, 2016 (147)
24 JJLAB ss2029997052 Sep 14, 2016 (149)
25 USC_VALOUEV ss2158569126 Dec 20, 2016 (150)
26 HUMAN_LONGEVITY ss2244248546 Dec 20, 2016 (150)
27 SYSTEMSBIOZJU ss2629490911 Nov 08, 2017 (151)
28 GRF ss2704266629 Nov 08, 2017 (151)
29 GNOMAD ss2969447731 Nov 08, 2017 (151)
30 SWEGEN ss3018478216 Nov 08, 2017 (151)
31 BIOINF_KMB_FNS_UNIBA ss3028831905 Nov 08, 2017 (151)
32 CSHL ss3352597456 Nov 08, 2017 (151)
33 URBANLAB ss3651056225 Oct 12, 2018 (152)
34 EGCUT_WGS ss3685163291 Jul 13, 2019 (153)
35 EVA_DECODE ss3707317242 Jul 13, 2019 (153)
36 ACPOP ss3743554010 Jul 13, 2019 (153)
37 EVA ss3758871501 Jul 13, 2019 (153)
38 PACBIO ss3788696232 Jul 13, 2019 (153)
39 PACBIO ss3793580122 Jul 13, 2019 (153)
40 PACBIO ss3798467582 Jul 13, 2019 (153)
41 KHV_HUMAN_GENOMES ss3822024982 Jul 13, 2019 (153)
42 EVA ss3835766110 Apr 27, 2020 (154)
43 EVA ss3841507962 Apr 27, 2020 (154)
44 EVA ss3847021787 Apr 27, 2020 (154)
45 SGDP_PRJ ss3889491451 Apr 27, 2020 (154)
46 KRGDB ss3939819176 Apr 27, 2020 (154)
47 KOGIC ss3982646327 Apr 27, 2020 (154)
48 TOPMED ss5094755220 Apr 27, 2021 (155)
49 TOMMO_GENOMICS ss5230477036 Apr 27, 2021 (155)
50 1000G_HIGH_COVERAGE ss5309443819 Oct 16, 2022 (156)
51 EVA ss5438585337 Oct 16, 2022 (156)
52 HUGCELL_USP ss5501658426 Oct 16, 2022 (156)
53 EVA ss5512263916 Oct 16, 2022 (156)
54 1000G_HIGH_COVERAGE ss5616202303 Oct 16, 2022 (156)
55 SANFORD_IMAGENETICS ss5663572816 Oct 16, 2022 (156)
56 TOMMO_GENOMICS ss5790543934 Oct 16, 2022 (156)
57 YY_MCH ss5818201825 Oct 16, 2022 (156)
58 EVA ss5845947678 Oct 16, 2022 (156)
59 EVA ss5853217770 Oct 16, 2022 (156)
60 EVA ss5924167841 Oct 16, 2022 (156)
61 EVA ss5958506010 Oct 16, 2022 (156)
62 1000Genomes NC_000020.10 - 62291830 Oct 12, 2018 (152)
63 1000Genomes_30x NC_000020.11 - 63660477 Oct 16, 2022 (156)
64 The Avon Longitudinal Study of Parents and Children NC_000020.10 - 62291830 Oct 12, 2018 (152)
65 Genetic variation in the Estonian population NC_000020.10 - 62291830 Oct 12, 2018 (152)
66 The Danish reference pan genome NC_000020.10 - 62291830 Apr 27, 2020 (154)
67 gnomAD - Genomes NC_000020.11 - 63660477 Apr 27, 2021 (155)
68 Genome of the Netherlands Release 5 NC_000020.10 - 62291830 Apr 27, 2020 (154)
69 KOREAN population from KRGDB NC_000020.10 - 62291830 Apr 27, 2020 (154)
70 Korean Genome Project NC_000020.11 - 63660477 Apr 27, 2020 (154)
71 Northern Sweden NC_000020.10 - 62291830 Jul 13, 2019 (153)
72 Qatari NC_000020.10 - 62291830 Apr 27, 2020 (154)
73 SGDP_PRJ NC_000020.10 - 62291830 Apr 27, 2020 (154)
74 Siberian NC_000020.10 - 62291830 Apr 27, 2020 (154)
75 8.3KJPN NC_000020.10 - 62291830 Apr 27, 2021 (155)
76 14KJPN NC_000020.11 - 63660477 Oct 16, 2022 (156)
77 TopMed NC_000020.11 - 63660477 Apr 27, 2021 (155)
78 UK 10K study - Twins NC_000020.10 - 62291830 Oct 12, 2018 (152)
79 A Vietnamese Genetic Variation Database NC_000020.10 - 62291830 Jul 13, 2019 (153)
80 ALFA NC_000020.11 - 63660477 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).

Associated ID History Updated (Build)
rs6089762 Mar 11, 2006 (126)
Added to this RefSNP Cluster:
Submission IDs Observation SPDI Canonical SPDI Source RSIDs
8743125077 NC_000020.11:63660476:C:G NC_000020.11:63660476:C:G (self)
ss168433702, ss208715683, ss255774174, ss283446472, ss287486341, ss292599598, ss1698974998 NC_000020.9:61762273:C:T NC_000020.11:63660476:C:T (self)
78984575, 43733469, 30901539, 5743471, 19475622, 46996570, 16838875, 20475449, 41508431, 11085480, 88446343, 43733469, 9643662, ss237902349, ss244057770, ss662250106, ss994910208, ss1082340076, ss1365496208, ss1429107017, ss1579578532, ss1639167943, ss1682161976, ss1938433527, ss2029997052, ss2158569126, ss2629490911, ss2704266629, ss2969447731, ss3018478216, ss3352597456, ss3685163291, ss3743554010, ss3758871501, ss3788696232, ss3793580122, ss3798467582, ss3835766110, ss3841507962, ss3889491451, ss3939819176, ss5230477036, ss5438585337, ss5512263916, ss5663572816, ss5845947678, ss5958506010 NC_000020.10:62291829:C:T NC_000020.11:63660476:C:T (self)
103728238, 557010751, 39024328, 124381038, 369864165, 8743125077, ss2244248546, ss3028831905, ss3651056225, ss3707317242, ss3822024982, ss3847021787, ss3982646327, ss5094755220, ss5309443819, ss5501658426, ss5616202303, ss5790543934, ss5818201825, ss5853217770, ss5924167841 NC_000020.11:63660476:C:T NC_000020.11:63660476:C:T (self)
ss8413246, ss21770136 NT_011333.5:1028459:C:T NC_000020.11:63660476:C:T (self)
ss3866066, ss41388631, ss96207149 NT_011333.6:1028460:C:T NC_000020.11:63660476: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.

No publications for rs2738778

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