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NM_001267550.2(TTN):c.227G>C (p.Gly76Ala) AND Cardiovascular phenotype

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
May 24, 2019
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:
RCV000621535.11

Allele description [Variation Report for NM_001267550.2(TTN):c.227G>C (p.Gly76Ala)]

NM_001267550.2(TTN):c.227G>C (p.Gly76Ala)

Gene:
TTN:titin [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
2q31.2
Genomic location:
Preferred name:
NM_001267550.2(TTN):c.227G>C (p.Gly76Ala)
HGVS:
  • NC_000002.12:g.178802206C>G
  • NG_011618.3:g.33597G>C
  • NM_001256850.1:c.227G>C
  • NM_001267550.2:c.227G>CMANE SELECT
  • NM_003319.4:c.227G>C
  • NM_133378.4:c.227G>C
  • NM_133379.5:c.227G>C
  • NM_133432.3:c.227G>C
  • NM_133437.4:c.227G>C
  • NP_001243779.1:p.Gly76Ala
  • NP_001254479.2:p.Gly76Ala
  • NP_003310.4:p.Gly76Ala
  • NP_596869.4:p.Gly76Ala
  • NP_596870.2:p.Gly76Ala
  • NP_597676.3:p.Gly76Ala
  • NP_597681.4:p.Gly76Ala
  • LRG_391:g.33597G>C
  • NC_000002.11:g.179666933C>G
Protein change:
G76A
Links:
dbSNP: rs138750421
NCBI 1000 Genomes Browser:
rs138750421
Molecular consequence:
  • NM_001256850.1:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001267550.2:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_003319.4:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133378.4:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133379.5:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133432.3:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133437.4:c.227G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Cardiovascular phenotype
Identifiers:
MedGen: CN230736

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV000736687Ambry Genetics
criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)		Uncertain significance
(May 24, 2019) 		germlineclinical testing

Citation Link

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Details of each submission

From Ambry Genetics, SCV000736687.5

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

Description

The p.G76A variant (also known as c.227G>C), located in coding exon 2 of the TTN gene, results from a G to C substitution at nucleotide position 227. The glycine at codon 76 is replaced by alanine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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

Last Updated: Jan 19, 2025