Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

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.

rs1491391416

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr20:38813765-38813766 (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
insTAT / ins(TAT)2 / ins(TAT)3
Variation Type
Indel Insertion and Deletion
Frequency
insTAT=0.00074 (12/16144, ALFA)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
PPP1R16B : 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: 20231103111315
Population Group Sample Size Ref Allele Alt Allele Ref HMOZ Alt HMOZ HTRZ HWEP
Total Global 16144 AT=0.99926 ATTAT=0.00074, ATTATTAT=0.00000, ATTATTATTAT=0.00000 0.998512 0.0 0.001488 0
European Sub 12022 AT=0.99900 ATTAT=0.00100, ATTATTAT=0.00000, ATTATTATTAT=0.00000 0.998001 0.0 0.001999 0
African Sub 2712 AT=1.0000 ATTAT=0.0000, ATTATTAT=0.0000, ATTATTATTAT=0.0000 1.0 0.0 0.0 N/A
African Others Sub 98 AT=1.00 ATTAT=0.00, ATTATTAT=0.00, ATTATTATTAT=0.00 1.0 0.0 0.0 N/A
African American Sub 2614 AT=1.0000 ATTAT=0.0000, ATTATTAT=0.0000, ATTATTATTAT=0.0000 1.0 0.0 0.0 N/A
Asian Sub 106 AT=1.000 ATTAT=0.000, ATTATTAT=0.000, ATTATTATTAT=0.000 1.0 0.0 0.0 N/A
East Asian Sub 84 AT=1.00 ATTAT=0.00, ATTATTAT=0.00, ATTATTATTAT=0.00 1.0 0.0 0.0 N/A
Other Asian Sub 22 AT=1.00 ATTAT=0.00, ATTATTAT=0.00, ATTATTATTAT=0.00 1.0 0.0 0.0 N/A
Latin American 1 Sub 144 AT=1.000 ATTAT=0.000, ATTATTAT=0.000, ATTATTATTAT=0.000 1.0 0.0 0.0 N/A
Latin American 2 Sub 604 AT=1.000 ATTAT=0.000, ATTATTAT=0.000, ATTATTATTAT=0.000 1.0 0.0 0.0 N/A
South Asian Sub 92 AT=1.00 ATTAT=0.00, ATTATTAT=0.00, ATTATTATTAT=0.00 1.0 0.0 0.0 N/A
Other Sub 464 AT=1.000 ATTAT=0.000, ATTATTAT=0.000, ATTATTATTAT=0.000 1.0 0.0 0.0 N/A


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
Allele Frequency Aggregator Total Global 16144 AT=0.99926 insTAT=0.00074, ins(TAT)2=0.00000, ins(TAT)3=0.00000
Allele Frequency Aggregator European Sub 12022 AT=0.99900 insTAT=0.00100, ins(TAT)2=0.00000, ins(TAT)3=0.00000
Allele Frequency Aggregator African Sub 2712 AT=1.0000 insTAT=0.0000, ins(TAT)2=0.0000, ins(TAT)3=0.0000
Allele Frequency Aggregator Latin American 2 Sub 604 AT=1.000 insTAT=0.000, ins(TAT)2=0.000, ins(TAT)3=0.000
Allele Frequency Aggregator Other Sub 464 AT=1.000 insTAT=0.000, ins(TAT)2=0.000, ins(TAT)3=0.000
Allele Frequency Aggregator Latin American 1 Sub 144 AT=1.000 insTAT=0.000, ins(TAT)2=0.000, ins(TAT)3=0.000
Allele Frequency Aggregator Asian Sub 106 AT=1.000 insTAT=0.000, ins(TAT)2=0.000, ins(TAT)3=0.000
Allele Frequency Aggregator South Asian Sub 92 AT=1.00 insTAT=0.00, ins(TAT)2=0.00, ins(TAT)3=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 20 NC_000020.11:g.38813766_38813767insTAT
GRCh38.p14 chr 20 NC_000020.11:g.38813766_38813767insTATTAT
GRCh38.p14 chr 20 NC_000020.11:g.38813767TAT[3]
GRCh37.p13 chr 20 NC_000020.10:g.37442409_37442410insTAT
GRCh37.p13 chr 20 NC_000020.10:g.37442409_37442410insTATTAT
GRCh37.p13 chr 20 NC_000020.10:g.37442410TAT[3]
Gene: PPP1R16B, protein phosphatase 1 regulatory subunit 16B (plus strand)
Molecule type Change Amino acid[Codon] SO Term
PPP1R16B transcript variant 2 NM_001172735.3:c.-102+797…

NM_001172735.3:c.-102+7974_-102+7975insTAT

N/A Intron Variant
PPP1R16B transcript variant 1 NM_015568.4:c.-102+7974_-…

NM_015568.4:c.-102+7974_-102+7975insTAT

N/A Intron Variant
PPP1R16B transcript variant X1 XM_011528768.4:c. N/A Genic Upstream Transcript Variant
PPP1R16B transcript variant X2 XM_047440086.1:c. N/A Genic Upstream 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 AT= insTAT ins(TAT)2 ins(TAT)3
GRCh38.p14 chr 20 NC_000020.11:g.38813765_38813766= NC_000020.11:g.38813766_38813767insTAT NC_000020.11:g.38813766_38813767insTATTAT NC_000020.11:g.38813767TAT[3]
GRCh37.p13 chr 20 NC_000020.10:g.37442408_37442409= NC_000020.10:g.37442409_37442410insTAT NC_000020.10:g.37442409_37442410insTATTAT NC_000020.10:g.37442410TAT[3]
PPP1R16B transcript variant 2 NM_001172735.1:c.-102+7973= NM_001172735.1:c.-102+7974_-102+7975insTAT NM_001172735.1:c.-102+7974_-102+7975insTATTAT NM_001172735.1:c.-102+7974_-102+7975insTATTATTAT
PPP1R16B transcript variant 2 NM_001172735.3:c.-102+7973= NM_001172735.3:c.-102+7974_-102+7975insTAT NM_001172735.3:c.-102+7974_-102+7975insTATTAT NM_001172735.3:c.-102+7974_-102+7975insTATTATTAT
PPP1R16B transcript variant 1 NM_015568.2:c.-102+7973= NM_015568.2:c.-102+7974_-102+7975insTAT NM_015568.2:c.-102+7974_-102+7975insTATTAT NM_015568.2:c.-102+7974_-102+7975insTATTATTAT
PPP1R16B transcript variant 1 NM_015568.4:c.-102+7973= NM_015568.4:c.-102+7974_-102+7975insTAT NM_015568.4:c.-102+7974_-102+7975insTATTAT NM_015568.4:c.-102+7974_-102+7975insTATTATTAT
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#.

9 SubSNP, 8 Frequency submissions
No Submitter Submission ID Date (Build)
1 EVA_DECODE ss3706934085 Jul 13, 2019 (153)
2 GNOMAD ss4353313314 Apr 27, 2021 (155)
3 GNOMAD ss4353313315 Apr 27, 2021 (155)
4 GNOMAD ss4353313316 Apr 27, 2021 (155)
5 TOMMO_GENOMICS ss5229625205 Apr 27, 2021 (155)
6 TOMMO_GENOMICS ss5229625207 Apr 27, 2021 (155)
7 HUGCELL_USP ss5501058439 Oct 16, 2022 (156)
8 TOMMO_GENOMICS ss5789421141 Oct 16, 2022 (156)
9 TOMMO_GENOMICS ss5789421143 Oct 16, 2022 (156)
10 gnomAD - Genomes

Submission ignored due to conflicting rows:
Row 551703490 (NC_000020.11:38813764::ATT 1584/121500)
Row 551703491 (NC_000020.11:38813764::ATTATT 130/121682)
Row 551703492 (NC_000020.11:38813764::ATTATTATT 3/121694)

- Apr 27, 2021 (155)
11 gnomAD - Genomes

Submission ignored due to conflicting rows:
Row 551703490 (NC_000020.11:38813764::ATT 1584/121500)
Row 551703491 (NC_000020.11:38813764::ATTATT 130/121682)
Row 551703492 (NC_000020.11:38813764::ATTATTATT 3/121694)

- Apr 27, 2021 (155)
12 gnomAD - Genomes

Submission ignored due to conflicting rows:
Row 551703490 (NC_000020.11:38813764::ATT 1584/121500)
Row 551703491 (NC_000020.11:38813764::ATTATT 130/121682)
Row 551703492 (NC_000020.11:38813764::ATTATTATT 3/121694)

- Apr 27, 2021 (155)
13 8.3KJPN

Submission ignored due to conflicting rows:
Row 87594512 (NC_000020.10:37442407::ATT 92/16746)
Row 87594514 (NC_000020.10:37442407::ATTATT 10/16746)

- Apr 27, 2021 (155)
14 8.3KJPN

Submission ignored due to conflicting rows:
Row 87594512 (NC_000020.10:37442407::ATT 92/16746)
Row 87594514 (NC_000020.10:37442407::ATTATT 10/16746)

- Apr 27, 2021 (155)
15 14KJPN

Submission ignored due to conflicting rows:
Row 123258245 (NC_000020.11:38813764::ATT 149/28258)
Row 123258247 (NC_000020.11:38813764::ATTATT 14/28258)

- Oct 16, 2022 (156)
16 14KJPN

Submission ignored due to conflicting rows:
Row 123258245 (NC_000020.11:38813764::ATT 149/28258)
Row 123258247 (NC_000020.11:38813764::ATTATT 14/28258)

- Oct 16, 2022 (156)
17 ALFA NC_000020.11 - 38813765 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
ss5229625205 NC_000020.10:37442407::ATT NC_000020.11:38813764:AT:ATTAT (self)
ss4353313314, ss5501058439, ss5789421141 NC_000020.11:38813764::ATT NC_000020.11:38813764:AT:ATTAT (self)
10685836359 NC_000020.11:38813764:AT:ATTAT NC_000020.11:38813764:AT:ATTAT (self)
ss3706934085 NC_000020.11:38813766::TAT NC_000020.11:38813764:AT:ATTAT (self)
ss5229625207 NC_000020.10:37442407::ATTATT NC_000020.11:38813764:AT:ATTATTAT (self)
ss4353313315, ss5789421143 NC_000020.11:38813764::ATTATT NC_000020.11:38813764:AT:ATTATTAT (self)
10685836359 NC_000020.11:38813764:AT:ATTATTAT NC_000020.11:38813764:AT:ATTATTAT (self)
ss4353313316 NC_000020.11:38813764::ATTATTATT NC_000020.11:38813764:AT:ATTATTATT…

NC_000020.11:38813764:AT:ATTATTATTAT

(self)
10685836359 NC_000020.11:38813764:AT:ATTATTATT…

NC_000020.11:38813764:AT:ATTATTATTAT

NC_000020.11:38813764:AT:ATTATTATT…

NC_000020.11:38813764:AT:ATTATTATTAT

(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 rs1491391416

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.post820+afb47a3d