NM_001267550.2(TTN):c.100094G>A (p.Arg33365Gln) AND not specified

Germline classification:: Benign/Likely benign (11 submissions)
Last evaluated:: Apr 9, 2025
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000040893.39

Allele description [Variation Report for NM_001267550.2(TTN):c.100094G>A (p.Arg33365Gln)]

NM_001267550.2(TTN):c.100094G>A (p.Arg33365Gln)

Genes:

LOC126806420:BRD4-independent group 4 enhancer GRCh37_chr2:179401104-179402303 [Gene]
TTN-AS1:TTN antisense RNA 1 [Gene - HGNC]
TTN:titin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

2q31.2

Genomic location:

Preferred name:

NM_001267550.2(TTN):c.100094G>A (p.Arg33365Gln)

Other names:

p.R31724Q:CGG>CAG

HGVS:

NC_000002.12:g.178537015C>T
NG_011618.3:g.298788G>A
NG_051363.1:g.19189C>T
NM_001256850.1:c.95171G>A
NM_001267550.2:c.100094G>AMANE SELECT
NM_003319.4:c.72899G>A
NM_133378.4:c.92390G>A
NM_133432.3:c.73274G>A
NM_133437.4:c.73475G>A
NP_001243779.1:p.Arg31724Gln
NP_001254479.2:p.Arg33365Gln
NP_003310.4:p.Arg24300Gln
NP_596869.4:p.Arg30797Gln
NP_597676.3:p.Arg24425Gln
NP_597681.4:p.Arg24492Gln
LRG_391t1:c.100094G>A
LRG_391:g.298788G>A
NC_000002.11:g.179401742C>T
NM_001267550.1:c.100094G>A
c.92390G>A

Protein change:

R24300Q

Links:

dbSNP: rs55742743

Molecular consequence:

NM_001256850.1:c.95171G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001267550.2:c.100094G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_003319.4:c.72899G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_133378.4:c.92390G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_133432.3:c.73274G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_133437.4:c.73475G>A - missense variant - [Sequence Ontology: SO:0001583]

Observations:

Condition(s)

Synonyms:: AllHighlyPenetrant
Identifiers:: MedGen: CN169374

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000051700	Biesecker Lab/Clinical Genomics Section, National Institutes of Health - ClinSeq	criteria provided, single submitter (Ng et al. (Circ Cardiovasc Genet. 2013))	Benign (Jun 24, 2013)	unknown	research	PubMed (1) [See all records that cite this PMID]
SCV000064584	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	criteria provided, single submitter (LMM Criteria)	Benign (Mar 14, 2012)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000153415	Genetic Services Laboratory, University of Chicago	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign (Dec 14, 2021)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000169453	GeneDx	criteria provided, single submitter (GeneDx Variant Classification (06012015))	Benign (Oct 3, 2013)	germline	clinical testing	Citation Link,
SCV000315619	PreventionGenetics, part of Exact Sciences	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001370673	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	criteria provided, single submitter (LabCorp Variant Classification Summary - May 2015)	Likely benign (Mar 3, 2024)	germline	clinical testing	Citation Link,
SCV001477091	Athena Diagnostics	criteria provided, single submitter (Athena Diagnostics Criteria)	benign (May 7, 2024)	unknown	clinical testing	PubMed (2) [See all records that cite these PMIDs] 37301943, 26467025
SCV001926769	Genome Diagnostics Laboratory, University Medical Center Utrecht - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing
SCV001979123	Clinical Genetics, Academic Medical Center - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Benign	germline	clinical testing
SCV006067966	Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign (Apr 9, 2025)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV007324551	Mayo Clinic Laboratories, Mayo Clinic	criteria provided, single submitter (ACMG Guidelines, 2015)	Benign (Jan 12, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	not provided	53	53	not provided	not provided	not provided	clinical testing
not provided	germline	yes	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	unknown	83	not provided	not provided	not provided	not provided	clinical testing
not provided	unknown	unknown	18	not provided	not provided	not provided	not provided	clinical testing, research
not provided	germline	no	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Interpreting secondary cardiac disease variants in an exome cohort.

Ng D, Johnston JJ, Teer JK, Singh LN, Peller LC, Wynter JS, Lewis KL, Cooper DN, Stenson PD, Mullikin JC, Biesecker LG; NIH Intramural Sequencing Center (NISC) Comparative Sequencing Program.

Circ Cardiovasc Genet. 2013 Aug;6(4):337-46. doi: 10.1161/CIRCGENETICS.113.000039. Epub 2013 Jul 16.

PubMed [citation]

PMID:: 23861362
PMCID:: PMC3887521

A systematic approach to assessing the clinical significance of genetic variants.

Duzkale H, Shen J, McLaughlin H, Alfares A, Kelly MA, Pugh TJ, Funke BH, Rehm HL, Lebo MS.

Clin Genet. 2013 Nov;84(5):453-63. doi: 10.1111/cge.12257.

PubMed [citation]

PMID:: 24033266
PMCID:: PMC3995020

See all PubMed Citations (5)

Details of each submission

From Biesecker Lab/Clinical Genomics Section, National Institutes of Health - ClinSeq, SCV000051700.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	18	not provided	not provided	research	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		18	not provided	not provided	not provided

From Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine, SCV000064584.6

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	53	not provided	not provided	clinical testing	PubMed (1)

Description

Arg30797Gln in exon 305 of TTN: This variant is not expected to have clinical si gnificance because it has been identified in 2.1% (143/6658) of European America n chromosomes from a broad population by the NHLBI Exome Sequencing Project (htt p://evs.gs.washington.edu/EVS; dbSNP rs55742743).

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	not provided	not provided	not provided	not provided		53	not provided	53	not provided

From Genetic Services Laboratory, University of Chicago, SCV000153415.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From GeneDx, SCV000169453.11

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From PreventionGenetics, part of Exact Sciences, SCV000315619.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Women's Health and Genetics/Laboratory Corporation of America, LabCorp, SCV001370673.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Athena Diagnostics, SCV001477091.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Genome Diagnostics Laboratory, University Medical Center Utrecht - VKGL Data-share Consensus, SCV001926769.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Clinical Genetics, Academic Medical Center - VKGL Data-share Consensus, SCV001979123.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute, SCV006067966.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Mayo Clinic Laboratories, Mayo Clinic, SCV007324551.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	83	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		83	not provided	not provided	not provided

Last Updated: Mar 1, 2026

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