NM_001267550.2(TTN):c.10922T>C (p.Ile3641Thr) AND not specified

Clinical significance:Conflicting interpretations of pathogenicity, Likely benign(1);Uncertain significance(1) (Last evaluated: Dec 1, 2015)

Review status:1 star out of maximum of 4 stars

criteria provided, conflicting interpretations

Based on:
2 submissions [Details]
Record status:
current
Accession:
RCV000041118.5

Allele description [Variation Report for NM_001267550.2(TTN):c.10922T>C (p.Ile3641Thr)]

NM_001267550.2(TTN):c.10922T>C (p.Ile3641Thr)

Gene:
TTN:titin [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
2q31.2
Genomic location:
Preferred name:
NM_001267550.2(TTN):c.10922T>C (p.Ile3641Thr)
Other names:
p.I3470T:ATT>ACT
HGVS:
  • NC_000002.12:g.178756554A>G
  • NG_011618.3:g.79249T>C
  • NM_001256850.1:c.10303+2430T>C
  • NM_001267550.2:c.10922T>CMANE SELECT
  • NM_003319.4:c.10165+2430T>C
  • NM_133378.4:c.10303+2430T>C
  • NM_133379.5:c.10303+2430T>C
  • NM_133432.3:c.10540+988T>C
  • NM_133437.4:c.10409T>C
  • NP_001254479.2:p.Ile3641Thr
  • NP_597681.4:p.Ile3470Thr
  • LRG_391:g.79249T>C
  • NC_000002.11:g.179621281A>G
  • NM_133437.3:c.10409T>C
  • c.10409T>C
Protein change:
I3470T
Links:
dbSNP: rs141027782
NCBI 1000 Genomes Browser:
rs141027782
Molecular consequence:
  • NM_001256850.1:c.10303+2430T>C - intron variant - [Sequence Ontology: SO:0001627]
  • NM_003319.4:c.10165+2430T>C - intron variant - [Sequence Ontology: SO:0001627]
  • NM_133378.4:c.10303+2430T>C - intron variant - [Sequence Ontology: SO:0001627]
  • NM_133379.5:c.10303+2430T>C - intron variant - [Sequence Ontology: SO:0001627]
  • NM_133432.3:c.10540+988T>C - intron variant - [Sequence Ontology: SO:0001627]
  • NM_001267550.2:c.10922T>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133437.4:c.10409T>C - missense variant - [Sequence Ontology: SO:0001583]
Observations:
2

Condition(s)

Synonyms:
AllHighlyPenetrant
Identifiers:
MedGen: CN169374

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000064809Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicinecriteria provided, single submitter
Likely benign
(Dec 18, 2012)
germlineclinical testing

PubMed (1)
[See all records that cite this PMID]

SCV000238082GeneDxcriteria provided, single submitter
Uncertain significance
(Dec 1, 2015)
germlineclinical testing

Citation Link

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlinenot provided22not providednot providednot providedclinical testing
not providedgermlineyesnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

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

Details of each submission

From Laboratory for Molecular Medicine, Partners HealthCare Personalized Medicine, SCV000064809.6

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided2not providednot providedclinical testing PubMed (1)

Description

Ile3470Thr in exon 44B of TTN: This variant is not expected to have clinical sig nificance because it has been identified in 2.6% (5/192) of Luhya chromosomes fr om a broad population by the 1000 Genomes project (dbSNP rs141027782). Ile3470T hr in exon 44B of TTN (rs141027782; allele frequency = 2.6%, 5/192)

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlinenot providednot providednot providednot provided2not provided2not provided

From GeneDx, SCV000238082.7

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot provided

Description

Missense variants in the TTN gene are considered 'unclassified' if they are not previously reported in the literature and do not have >1% frequency in the population to be considered a polymorphism. Research indicates that truncating mutations in the TTN gene are expected to account for approximately 25% of familial and 18% of sporadic idiopathic DCM; however, truncating variants in the TTN gene have been reported in approximately 3% of reported control alleles. There has been little investigation into non-truncating variants. (Herman D et al. Truncations of titin causing dilated cardiomyopathy. N Eng J Med 366:619-628, 2012) The variant is found in CARDIOMYOPATHY panel(s).

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineyesnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Nov 27, 2021

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