NM_001267550.2(TTN):c.26849A>G (p.Tyr8950Cys) AND not provided

Germline classification:: Conflicting classifications of pathogenicity (5 submissions)
Last evaluated:: May 1, 2024
Review status:: criteria provided, conflicting classifications

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:: RCV000172379.35

Allele description [Variation Report for NM_001267550.2(TTN):c.26849A>G (p.Tyr8950Cys)]

NM_001267550.2(TTN):c.26849A>G (p.Tyr8950Cys)

Gene:

TTN:titin [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

2q31.2

Genomic location:

Preferred name:

NM_001267550.2(TTN):c.26849A>G (p.Tyr8950Cys)

Other names:

p.Y8633C:TAT>TGT

HGVS:

NC_000002.12:g.178713285T>C
NG_011618.3:g.122518A>G
NM_001256850.1:c.25898A>G
NM_001267550.2:c.26849A>GMANE SELECT
NM_003319.4:c.13282+24797A>G
NM_133378.4:c.23117A>G
NM_133432.3:c.13657+24797A>G
NM_133437.4:c.13858+24797A>G
NP_001243779.1:p.Tyr8633Cys
NP_001254479.2:p.Tyr8950Cys
NP_596869.4:p.Tyr7706Cys
LRG_391:g.122518A>G
NC_000002.11:g.179578012T>C

Protein change:

Y7706C

Links:

dbSNP: rs199557654

NCBI 1000 Genomes Browser:

rs199557654

Molecular consequence:

NM_003319.4:c.13282+24797A>G - intron variant - [Sequence Ontology: SO:0001627]
NM_133432.3:c.13657+24797A>G - intron variant - [Sequence Ontology: SO:0001627]
NM_133437.4:c.13858+24797A>G - intron variant - [Sequence Ontology: SO:0001627]
NM_001256850.1:c.25898A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001267550.2:c.26849A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_133378.4:c.23117A>G - missense variant - [Sequence Ontology: SO:0001583]

Observations:

Condition(s)

Synonyms:: none provided; RECLASSIFIED - ADRA2C POLYMORPHISM; RECLASSIFIED - ADRB1 POLYMORPHISM
Identifiers:: MedGen: C3661900

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000051264	Biesecker Lab/Clinical Genomics Section, National Institutes of Health - ClinSeq	criteria provided, single submitter (Ng et al. (Circ Cardiovasc Genet. 2013))	Uncertain significance (Jun 24, 2013)	unknown	research	PubMed (1) [See all records that cite this PMID]
SCV000238382	GeneDx	criteria provided, single submitter (GeneDx Variant Classification Process June 2021)	Likely benign (Dec 23, 2020)	germline	clinical testing	Citation Link,
SCV000855214	Eurofins Ntd Llc (ga)	criteria provided, single submitter (EGL Classification Definitions 2015)	Uncertain significance (Nov 30, 2017)	germline	clinical testing	Citation Link,
SCV001713239	Mayo Clinic Laboratories, Mayo Clinic	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Feb 12, 2020)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV003916201	CeGaT Center for Human Genetics Tuebingen	criteria provided, single submitter (CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2)	Likely benign (May 1, 2024)	germline	clinical testing	Citation Link

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	4	not provided	not provided	not provided	not provided	clinical testing
not provided	unknown	unknown	1	not provided	not provided	not provided	not provided	research
not provided	germline	yes	2	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

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee.

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Biesecker Lab/Clinical Genomics Section, National Institutes of Health - ClinSeq, SCV000051264.1

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

From GeneDx, SCV000238382.5

#	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 associated with the following publications: (PMID: 23861362, 26284228)

#	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 Eurofins Ntd Llc (ga), SCV000855214.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	3	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		3	not provided	not provided	not provided

From Mayo Clinic Laboratories, Mayo Clinic, SCV001713239.1

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

From CeGaT Center for Human Genetics Tuebingen, SCV003916201.16

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

Description

TTN: BS2

#	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		2	not provided	not provided	not provided

Last Updated: Apr 20, 2025

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