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NM_000363.5(TNNI3):c.538del (p.Asp180fs) AND not specified

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jun 3, 2015
Review status:
1 star out of maximum of 4 stars
criteria provided, single submitter
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:
RCV000216567.4

Allele description [Variation Report for NM_000363.5(TNNI3):c.538del (p.Asp180fs)]

NM_000363.5(TNNI3):c.538del (p.Asp180fs)

Gene:
TNNI3:troponin I3, cardiac type [Gene - OMIM - HGNC]
Variant type:
Deletion
Cytogenetic location:
19q13.42
Genomic location:
Preferred name:
NM_000363.5(TNNI3):c.538del (p.Asp180fs)
HGVS:
  • NC_000019.10:g.55154042del
  • NG_007866.2:g.8692del
  • NG_011829.2:g.198del
  • NM_000363.5:c.538delMANE SELECT
  • NP_000354.4:p.Asp180fs
  • LRG_432t1:c.538del
  • LRG_432:g.8692del
  • LRG_679:g.198del
  • NC_000019.9:g.55665409delC
  • NC_000019.9:g.55665410del
  • NM_000363.4:c.538delG
  • p.Asp180ThrfsX19
Protein change:
D180fs
Links:
dbSNP: rs876658023
NCBI 1000 Genomes Browser:
rs876658023
Molecular consequence:
  • NM_000363.5:c.538del - frameshift variant - [Sequence Ontology: SO:0001589]
Observations:
1

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
SCV000272523Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
criteria provided, single submitter

(LMM Criteria)
Uncertain significance
(Jun 3, 2015)
germlineclinical testing

PubMed (5)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlinenot provided11not providednot providednot providedclinical testing

Citations

PubMed

Myofilament protein gene mutation screening and outcome of patients with hypertrophic cardiomyopathy.

Olivotto I, Girolami F, Ackerman MJ, Nistri S, Bos JM, Zachara E, Ommen SR, Theis JL, Vaubel RA, Re F, Armentano C, Poggesi C, Torricelli F, Cecchi F.

Mayo Clin Proc. 2008 Jun;83(6):630-8. doi: 10.4065/83.6.630.

PubMed [citation]
PMID:
18533079

Idiopathic restrictive cardiomyopathy in children is caused by mutations in cardiac sarcomere protein genes.

Kaski JP, Syrris P, Burch M, Tomé-Esteban MT, Fenton M, Christiansen M, Andersen PS, Sebire N, Ashworth M, Deanfield JE, McKenna WJ, Elliott PM.

Heart. 2008 Nov;94(11):1478-84. doi: 10.1136/hrt.2007.134684. Epub 2008 May 8.

PubMed [citation]
PMID:
18467357
See all PubMed Citations (5)

Details of each submission

From Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine, SCV000272523.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided1not providednot providedclinical testing PubMed (5)

Description

Variant classified as Uncertain Significance - Favor Pathogenic. The p.Asp180fs variant in TNNI3 has not been previously reported in individuals with cardiomyop athy or in large population studies. This frameshift variant is predicted to alt er the protein?s amino acid sequence beginning at position 180 and lead to a pre mature termination codon 19 amino acids downstream. This termination codon occur s within the terminal 50 bases of the second to last exon and is more likely to escape nonsense mediated decay (NMD) and result in a truncated protein. While he terozygous frameshift variants in TNNI3 are uncommon, they have been reported in cases of HCM (Olivotto 2008, Olivotto 2011) and RCM with functional evidence of calcium sensitization (Kaski 2008, Kostareva 2009). However, it remains unclear if the p.Asp180fs variant would impact protein function. In summary, while ther e is some suspicion for a pathogenic role, the clinical significance of the p.As p180fs variant is uncertain.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlinenot providednot providednot providednot provided1not provided1not provided

Last Updated: Dec 24, 2022