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.

rs121912496

Current Build 156

Released September 21, 2022

Organism
Homo sapiens
Position
chr1:156134910 (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=0.00000 (0/78628, PAGE_STUDY)
T=0.000 (0/658, ALFA)
Clinical Significance
Reported in ClinVar
Gene : Consequence
LMNA : Missense Variant
Publications
12 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 658 C=1.000 T=0.000
European Sub 76 C=1.00 T=0.00
African Sub 434 C=1.000 T=0.000
African Others Sub 0 C=0 T=0
African American Sub 434 C=1.000 T=0.000
Asian Sub 34 C=1.00 T=0.00
East Asian Sub 34 C=1.00 T=0.00
Other Asian Sub 0 C=0 T=0
Latin American 1 Sub 0 C=0 T=0
Latin American 2 Sub 0 C=0 T=0
South Asian Sub 6 C=1.0 T=0.0
Other Sub 108 C=1.000 T=0.000


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
The PAGE Study Global Study-wide 78628 C=1.00000 T=0.00000
The PAGE Study AfricanAmerican Sub 32468 C=1.00000 T=0.00000
The PAGE Study Mexican Sub 10806 C=1.00000 T=0.00000
The PAGE Study Asian Sub 8314 C=1.0000 T=0.0000
The PAGE Study PuertoRican Sub 7912 C=1.0000 T=0.0000
The PAGE Study NativeHawaiian Sub 4534 C=1.0000 T=0.0000
The PAGE Study Cuban Sub 4228 C=1.0000 T=0.0000
The PAGE Study Dominican Sub 3824 C=1.0000 T=0.0000
The PAGE Study CentralAmerican Sub 2450 C=1.0000 T=0.0000
The PAGE Study SouthAmerican Sub 1980 C=1.0000 T=0.0000
The PAGE Study NativeAmerican Sub 1256 C=1.0000 T=0.0000
The PAGE Study SouthAsian Sub 856 C=1.000 T=0.000
Allele Frequency Aggregator Total Global 658 C=1.000 T=0.000
Allele Frequency Aggregator African Sub 434 C=1.000 T=0.000
Allele Frequency Aggregator Other Sub 108 C=1.000 T=0.000
Allele Frequency Aggregator European Sub 76 C=1.00 T=0.00
Allele Frequency Aggregator Asian Sub 34 C=1.00 T=0.00
Allele Frequency Aggregator South Asian Sub 6 C=1.0 T=0.0
Allele Frequency Aggregator Latin American 1 Sub 0 C=0 T=0
Allele Frequency Aggregator Latin American 2 Sub 0 C=0 T=0
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.156134910C>G
GRCh38.p14 chr 1 NC_000001.11:g.156134910C>T
GRCh37.p13 chr 1 NC_000001.10:g.156104701C>G
GRCh37.p13 chr 1 NC_000001.10:g.156104701C>T
LMNA RefSeqGene (LRG_254) NG_008692.2:g.57338C>G
LMNA RefSeqGene (LRG_254) NG_008692.2:g.57338C>T
Gene: LMNA, lamin A/C (plus strand)
Molecule type Change Amino acid[Codon] SO Term
LMNA transcript variant 1 NM_170707.4:c.745C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform A NP_733821.1:p.Arg249Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 1 NM_170707.4:c.745C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform A NP_733821.1:p.Arg249Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant 4 NM_001257374.3:c.409C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform D NP_001244303.1:p.Arg137Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 4 NM_001257374.3:c.409C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform D NP_001244303.1:p.Arg137Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant 7 NM_001282626.2:c.745C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform A-delta50 NP_001269555.1:p.Arg249Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 7 NM_001282626.2:c.745C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform A-delta50 NP_001269555.1:p.Arg249Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant 2 NM_005572.4:c.745C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform C NP_005563.1:p.Arg249Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 2 NM_005572.4:c.745C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform C NP_005563.1:p.Arg249Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant 5 NM_001282624.2:c.502C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform E NP_001269553.1:p.Arg168Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 5 NM_001282624.2:c.502C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform E NP_001269553.1:p.Arg168Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant 3 NM_170708.4:c.745C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform A-delta10 NP_733822.1:p.Arg249Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 3 NM_170708.4:c.745C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform A-delta10 NP_733822.1:p.Arg249Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant 6 NM_001282625.2:c.745C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform C NP_001269554.1:p.Arg249Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant 6 NM_001282625.2:c.745C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform C NP_001269554.1:p.Arg249Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant X1 XM_011509533.2:c.409C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform X1 XP_011507835.1:p.Arg137Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant X1 XM_011509533.2:c.409C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform X1 XP_011507835.1:p.Arg137Trp R (Arg) > W (Trp) Missense Variant
LMNA transcript variant X2 XM_047420430.1:c.745C>G R [CGG] > G [GGG] Coding Sequence Variant
lamin isoform X2 XP_047276386.1:p.Arg249Gly R (Arg) > G (Gly) Missense Variant
LMNA transcript variant X2 XM_047420430.1:c.745C>T R [CGG] > W [TGG] Coding Sequence Variant
lamin isoform X2 XP_047276386.1:p.Arg249Trp R (Arg) > W (Trp) 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: G (allele ID: 57241 )
ClinVar Accession Disease Names Clinical Significance
RCV000041362.6 Laminopathy Likely-Pathogenic
RCV000818791.4 Charcot-Marie-Tooth disease type 2 Uncertain-Significance
Allele: T (allele ID: 29563 )
ClinVar Accession Disease Names Clinical Significance
RCV000015621.34 Congenital muscular dystrophy due to LMNA mutation Pathogenic-Likely-Pathogenic
RCV000057452.7 not provided Pathogenic
RCV000201142.2 Benign scapuloperoneal muscular dystrophy with cardiomyopathy Pathogenic
RCV000814531.7 Charcot-Marie-Tooth disease type 2 Pathogenic
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 1 NC_000001.11:g.156134910= NC_000001.11:g.156134910C>G NC_000001.11:g.156134910C>T
GRCh37.p13 chr 1 NC_000001.10:g.156104701= NC_000001.10:g.156104701C>G NC_000001.10:g.156104701C>T
LMNA RefSeqGene (LRG_254) NG_008692.2:g.57338= NG_008692.2:g.57338C>G NG_008692.2:g.57338C>T
LMNA transcript variant 1 NM_170707.4:c.745= NM_170707.4:c.745C>G NM_170707.4:c.745C>T
LMNA transcript variant 1 NM_170707.3:c.745= NM_170707.3:c.745C>G NM_170707.3:c.745C>T
LMNA transcript variant 3 NM_170708.4:c.745= NM_170708.4:c.745C>G NM_170708.4:c.745C>T
LMNA transcript variant 3 NM_170708.3:c.745= NM_170708.3:c.745C>G NM_170708.3:c.745C>T
LMNA transcript variant 2 NM_005572.4:c.745= NM_005572.4:c.745C>G NM_005572.4:c.745C>T
LMNA transcript variant 2 NM_005572.3:c.745= NM_005572.3:c.745C>G NM_005572.3:c.745C>T
LMNA transcript variant 4 NM_001257374.3:c.409= NM_001257374.3:c.409C>G NM_001257374.3:c.409C>T
LMNA transcript variant 4 NM_001257374.2:c.409= NM_001257374.2:c.409C>G NM_001257374.2:c.409C>T
LMNA transcript variant 4 NM_001257374.1:c.409= NM_001257374.1:c.409C>G NM_001257374.1:c.409C>T
LMNA transcript variant 7 NM_001282626.2:c.745= NM_001282626.2:c.745C>G NM_001282626.2:c.745C>T
LMNA transcript variant 7 NM_001282626.1:c.745= NM_001282626.1:c.745C>G NM_001282626.1:c.745C>T
LMNA transcript variant 6 NM_001282625.2:c.745= NM_001282625.2:c.745C>G NM_001282625.2:c.745C>T
LMNA transcript variant 6 NM_001282625.1:c.745= NM_001282625.1:c.745C>G NM_001282625.1:c.745C>T
LMNA transcript variant 5 NM_001282624.2:c.502= NM_001282624.2:c.502C>G NM_001282624.2:c.502C>T
LMNA transcript variant 5 NM_001282624.1:c.502= NM_001282624.1:c.502C>G NM_001282624.1:c.502C>T
LMNA transcript variant 8 NM_001406983.1:c.745= NM_001406983.1:c.745C>G NM_001406983.1:c.745C>T
LMNA transcript variant 24 NM_001406999.1:c.81= NM_001406999.1:c.81C>G NM_001406999.1:c.81C>T
LMNA transcript variant 13 NM_001406986.1:c.502= NM_001406986.1:c.502C>G NM_001406986.1:c.502C>T
LMNA transcript variant 9 NM_001406991.1:c.745= NM_001406991.1:c.745C>G NM_001406991.1:c.745C>T
LMNA transcript variant 25 NM_001407000.1:c.81= NM_001407000.1:c.81C>G NM_001407000.1:c.81C>T
LMNA transcript variant 26 NM_001407001.1:c.81= NM_001407001.1:c.81C>G NM_001407001.1:c.81C>T
LMNA transcript variant 20 NM_001406995.1:c.187= NM_001406995.1:c.187C>G NM_001406995.1:c.187C>T
LMNA transcript variant 21 NM_001406996.1:c.187= NM_001406996.1:c.187C>G NM_001406996.1:c.187C>T
LMNA transcript variant 14 NM_001406987.1:c.502= NM_001406987.1:c.502C>G NM_001406987.1:c.502C>T
LMNA transcript variant 15 NM_001406988.1:c.448= NM_001406988.1:c.448C>G NM_001406988.1:c.448C>T
LMNA transcript variant 18 NM_001406993.1:c.187= NM_001406993.1:c.187C>G NM_001406993.1:c.187C>T
LMNA transcript variant 22 NM_001406997.1:c.187= NM_001406997.1:c.187C>G NM_001406997.1:c.187C>T
LMNA transcript variant 16 NM_001406989.1:c.409= NM_001406989.1:c.409C>G NM_001406989.1:c.409C>T
LMNA transcript variant 19 NM_001406994.1:c.81= NM_001406994.1:c.81C>G NM_001406994.1:c.81C>T
LMNA transcript variant 12 NM_001406985.1:c.745= NM_001406985.1:c.745C>G NM_001406985.1:c.745C>T
LMNA transcript variant 10 NM_001406984.1:c.745= NM_001406984.1:c.745C>G NM_001406984.1:c.745C>T
LMNA transcript variant 17 NM_001406990.1:c.187= NM_001406990.1:c.187C>G NM_001406990.1:c.187C>T
LMNA transcript variant 27 NM_001407002.1:c.187= NM_001407002.1:c.187C>G NM_001407002.1:c.187C>T
LMNA transcript variant 11 NM_001406992.1:c.745= NM_001406992.1:c.745C>G NM_001406992.1:c.745C>T
LMNA transcript variant 28 NM_001407003.1:c.187= NM_001407003.1:c.187C>G NM_001407003.1:c.187C>T
LMNA transcript variant 23 NM_001406998.1:c.409= NM_001406998.1:c.409C>G NM_001406998.1:c.409C>T
LMNA transcript variant X1 XM_011509533.2:c.409= XM_011509533.2:c.409C>G XM_011509533.2:c.409C>T
LMNA transcript variant 6 NR_047544.1:n.1386= NR_047544.1:n.1386C>G NR_047544.1:n.1386C>T
LMNA transcript variant 5 NR_047545.1:n.633= NR_047545.1:n.633C>G NR_047545.1:n.633C>T
LMNA transcript variant X2 XM_047420430.1:c.745= XM_047420430.1:c.745C>G XM_047420430.1:c.745C>T
lamin isoform A NP_733821.1:p.Arg249= NP_733821.1:p.Arg249Gly NP_733821.1:p.Arg249Trp
lamin isoform A-delta10 NP_733822.1:p.Arg249= NP_733822.1:p.Arg249Gly NP_733822.1:p.Arg249Trp
lamin isoform C NP_005563.1:p.Arg249= NP_005563.1:p.Arg249Gly NP_005563.1:p.Arg249Trp
lamin isoform D NP_001244303.1:p.Arg137= NP_001244303.1:p.Arg137Gly NP_001244303.1:p.Arg137Trp
lamin isoform A-delta50 NP_001269555.1:p.Arg249= NP_001269555.1:p.Arg249Gly NP_001269555.1:p.Arg249Trp
lamin isoform C NP_001269554.1:p.Arg249= NP_001269554.1:p.Arg249Gly NP_001269554.1:p.Arg249Trp
lamin isoform E NP_001269553.1:p.Arg168= NP_001269553.1:p.Arg168Gly NP_001269553.1:p.Arg168Trp
lamin isoform X1 XP_011507835.1:p.Arg137= XP_011507835.1:p.Arg137Gly XP_011507835.1:p.Arg137Trp
lamin isoform X2 XP_047276386.1:p.Arg249= XP_047276386.1:p.Arg249Gly XP_047276386.1:p.Arg249Trp
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#.

10 SubSNP, 2 Frequency, 6 ClinVar submissions
No Submitter Submission ID Date (Build)
1 OMIM-CURATED-RECORDS ss275487677 Nov 19, 2010 (133)
2 HIFD-CURATED-RECORDS ss538292727 Jul 31, 2012 (137)
3 LMM-PCPGM ss836318458 Nov 27, 2013 (138)
4 ILLUMINA ss1958319110 Feb 12, 2016 (147)
5 ILLUMINA ss3021137825 Nov 08, 2017 (151)
6 ILLUMINA ss3651472912 Oct 11, 2018 (152)
7 ILLUMINA ss3725066778 Jul 12, 2019 (153)
8 PAGE_CC ss3770842023 Jul 12, 2019 (153)
9 EVA ss5847557131 Oct 12, 2022 (156)
10 EVA ss5979290520 Oct 12, 2022 (156)
11 The PAGE Study NC_000001.11 - 156134910 Jul 12, 2019 (153)
12 ALFA NC_000001.11 - 156134910 Apr 25, 2021 (155)
13 ClinVar RCV000015621.34 Oct 12, 2022 (156)
14 ClinVar RCV000041362.6 Oct 12, 2022 (156)
15 ClinVar RCV000057452.7 Oct 12, 2022 (156)
16 ClinVar RCV000201142.2 Oct 12, 2022 (156)
17 ClinVar RCV000814531.7 Oct 12, 2022 (156)
18 ClinVar RCV000818791.4 Oct 12, 2022 (156)
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
RCV000041362.6, RCV000818791.4, ss836318458 NC_000001.11:156134909:C:G NC_000001.11:156134909:C:G (self)
ss1958319110, ss3021137825, ss3651472912, ss5847557131, ss5979290520 NC_000001.10:156104700:C:T NC_000001.11:156134909:C:T (self)
RCV000015621.34, RCV000057452.7, RCV000201142.2, RCV000814531.7, 63492, 7071472256, ss275487677, ss538292727, ss3725066778, ss3770842023 NC_000001.11:156134909:C:T NC_000001.11:156134909: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.

12 citations for rs121912496
PMID Title Author Year Journal
10739764 Different mutations in the LMNA gene cause autosomal dominant and autosomal recessive Emery-Dreifuss muscular dystrophy. Raffaele Di Barletta M et al. 2000 American journal of human genetics
10939567 Clinical and molecular genetic spectrum of autosomal dominant Emery-Dreifuss muscular dystrophy due to mutations of the lamin A/C gene. Bonne G et al. 2000 Annals of neurology
11503164 Novel and recurrent mutations in lamin A/C in patients with Emery-Dreifuss muscular dystrophy. Brown CA et al. 2001 American journal of medical genetics
12032588 Identification of lamin A/C ( LMNA) gene mutations in Korean patients with autosomal dominant Emery-Dreifuss muscular dystrophy and limb-girdle muscular dystrophy 1B. Ki CS et al. 2002 Journal of human genetics
14684700 Mutation analysis of the lamin A/C gene (LMNA) among patients with different cardiomuscular phenotypes. Vytopil M et al. 2003 Journal of medical genetics
18551513 De novo LMNA mutations cause a new form of congenital muscular dystrophy. Quijano-Roy S et al. 2008 Annals of neurology
18564364 Laminopathies in Russian families. Rudenskaya GE et al. 2008 Clinical genetics
20848652 Novel LMNA mutations in patients with Emery-Dreifuss muscular dystrophy and functional characterization of four LMNA mutations. Scharner J et al. 2011 Human mutation
20886652 Two children with "dropped head" syndrome due to lamin A/C mutations. Chemla JC et al. 2010 Muscle & nerve
21632249 Inflammatory changes in infantile-onset LMNA-associated myopathy. Komaki H et al. 2011 Neuromuscular disorders
24033266 A systematic approach to assessing the clinical significance of genetic variants. Duzkale H et al. 2013 Clinical genetics
26467025 A Standardized DNA Variant Scoring System for Pathogenicity Assessments in Mendelian Disorders. Karbassi I et al. 2016 Human mutation
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