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.

rs1490006256

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr11:58623856-58623858 (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
dupT
Variation Type
Indel Insertion and Deletion
Frequency
dupT=0.000008 (2/264690, TOPMED)
dupT=0.00000 (0/14050, ALFA)
dupT=0.0002 (1/6404, 1000G_30x) (+ 1 more)
dupT=0.005 (1/210, Vietnamese)
Clinical Significance
Not Reported in ClinVar
Gene : Consequence
CNTF : Intron Variant
ZFP91-CNTF : 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 14050 TTT=1.00000 TTTT=0.00000 1.0 0.0 0.0 N/A
European Sub 9690 TTT=1.0000 TTTT=0.0000 1.0 0.0 0.0 N/A
African Sub 2898 TTT=1.0000 TTTT=0.0000 1.0 0.0 0.0 N/A
African Others Sub 114 TTT=1.000 TTTT=0.000 1.0 0.0 0.0 N/A
African American Sub 2784 TTT=1.0000 TTTT=0.0000 1.0 0.0 0.0 N/A
Asian Sub 112 TTT=1.000 TTTT=0.000 1.0 0.0 0.0 N/A
East Asian Sub 86 TTT=1.00 TTTT=0.00 1.0 0.0 0.0 N/A
Other Asian Sub 26 TTT=1.00 TTTT=0.00 1.0 0.0 0.0 N/A
Latin American 1 Sub 146 TTT=1.000 TTTT=0.000 1.0 0.0 0.0 N/A
Latin American 2 Sub 610 TTT=1.000 TTTT=0.000 1.0 0.0 0.0 N/A
South Asian Sub 98 TTT=1.00 TTTT=0.00 1.0 0.0 0.0 N/A
Other Sub 496 TTT=1.000 TTTT=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
TopMed Global Study-wide 264690 -

No frequency provided

dupT=0.000008
Allele Frequency Aggregator Total Global 14050 TTT=1.00000 dupT=0.00000
Allele Frequency Aggregator European Sub 9690 TTT=1.0000 dupT=0.0000
Allele Frequency Aggregator African Sub 2898 TTT=1.0000 dupT=0.0000
Allele Frequency Aggregator Latin American 2 Sub 610 TTT=1.000 dupT=0.000
Allele Frequency Aggregator Other Sub 496 TTT=1.000 dupT=0.000
Allele Frequency Aggregator Latin American 1 Sub 146 TTT=1.000 dupT=0.000
Allele Frequency Aggregator Asian Sub 112 TTT=1.000 dupT=0.000
Allele Frequency Aggregator South Asian Sub 98 TTT=1.00 dupT=0.00
1000Genomes_30x Global Study-wide 6404 -

No frequency provided

dupT=0.0002
1000Genomes_30x African Sub 1786 -

No frequency provided

dupT=0.0000
1000Genomes_30x Europe Sub 1266 -

No frequency provided

dupT=0.0000
1000Genomes_30x South Asian Sub 1202 -

No frequency provided

dupT=0.0000
1000Genomes_30x East Asian Sub 1170 -

No frequency provided

dupT=0.0009
1000Genomes_30x American Sub 980 -

No frequency provided

dupT=0.000
A Vietnamese Genetic Variation Database Global Study-wide 210 -

No frequency provided

dupT=0.005
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 11 NC_000011.10:g.58623858dup
GRCh37.p13 chr 11 NC_000011.9:g.58391331dup
CNTF RefSeqGene NG_008776.2:g.6186dup
Gene: CNTF, ciliary neurotrophic factor (plus strand)
Molecule type Change Amino acid[Codon] SO Term
CNTF transcript NM_000614.4:c.115-176dup N/A Intron Variant
Gene: ZFP91-CNTF, ZFP91-CNTF readthrough (NMD candidate) (plus strand)
Molecule type Change Amino acid[Codon] SO Term
ZFP91-CNTF transcript NR_024091.1: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 TTT= dupT
GRCh38.p14 chr 11 NC_000011.10:g.58623856_58623858= NC_000011.10:g.58623858dup
GRCh37.p13 chr 11 NC_000011.9:g.58391329_58391331= NC_000011.9:g.58391331dup
CNTF RefSeqGene NG_008776.2:g.6184_6186= NG_008776.2:g.6186dup
CNTF transcript NM_000614.3:c.115-178= NM_000614.3:c.115-176dup
CNTF transcript NM_000614.4:c.115-178= NM_000614.4:c.115-176dup
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#.

4 SubSNP, 4 Frequency submissions
No Submitter Submission ID Date (Build)
1 KHV_HUMAN_GENOMES ss3814691586 Jul 13, 2019 (153)
2 TOPMED ss4886646205 Apr 26, 2021 (155)
3 1000G_HIGH_COVERAGE ss5583354903 Oct 16, 2022 (156)
4 EVA ss5920135361 Oct 16, 2022 (156)
5 1000Genomes_30x NC_000011.10 - 58623856 Oct 16, 2022 (156)
6 TopMed NC_000011.10 - 58623856 Apr 26, 2021 (155)
7 A Vietnamese Genetic Variation Database NC_000011.9 - 58391329 Jul 13, 2019 (153)
8 ALFA NC_000011.10 - 58623856 Apr 26, 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
6653191 NC_000011.9:58391328::T NC_000011.10:58623855:TTT:TTTT (self)
70880838, 102191861, ss3814691586, ss4886646205, ss5583354903, ss5920135361 NC_000011.10:58623855::T NC_000011.10:58623855:TTT:TTTT (self)
1019103163 NC_000011.10:58623855:TTT:TTTT NC_000011.10:58623855:TTT:TTTT (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 rs1490006256

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