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NM_001267550.2(TTN):c.81899G>A (p.Arg27300His) AND not provided

Germline classification:
Conflicting classifications of pathogenicity (4 submissions)
Last evaluated:
Apr 1, 2025
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:
RCV000176835.49

Allele description [Variation Report for NM_001267550.2(TTN):c.81899G>A (p.Arg27300His)]

NM_001267550.2(TTN):c.81899G>A (p.Arg27300His)

Genes:
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.81899G>A (p.Arg27300His)
Other names:
p.R25659H:CGT>CAT
HGVS:
  • NC_000002.12:g.178564233C>T
  • NG_011618.3:g.271570G>A
  • NG_051363.1:g.46407C>T
  • NM_001256850.1:c.76976G>A
  • NM_001267550.2:c.81899G>AMANE SELECT
  • NM_003319.4:c.54704G>A
  • NM_133378.4:c.74195G>A
  • NM_133432.3:c.55079G>A
  • NM_133437.4:c.55280G>A
  • NP_001243779.1:p.Arg25659His
  • NP_001254479.2:p.Arg27300His
  • NP_003310.4:p.Arg18235His
  • NP_596869.4:p.Arg24732His
  • NP_597676.3:p.Arg18360His
  • NP_597681.4:p.Arg18427His
  • LRG_391:g.271570G>A
  • NC_000002.11:g.179428960C>T
  • NM_001267550.1:c.81899G>A
  • Q8WZ42:p.Arg25659His
  • c.74195G>A
Protein change:
R18235H
Links:
UniProtKB: Q8WZ42#VAR_040264; dbSNP: rs55850344
NCBI 1000 Genomes Browser:
rs55850344
Molecular consequence:
  • NM_001256850.1:c.76976G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001267550.2:c.81899G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_003319.4:c.54704G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133378.4:c.74195G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133432.3:c.55079G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_133437.4:c.55280G>A - missense variant - [Sequence Ontology: SO:0001583]
Observations:
14

Condition(s)

Synonyms:
none provided
Identifiers:
MedGen: C3661900

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000237620GeneDx
criteria provided, single submitter

(GeneDx Variant Classification Process June 2021)
Likely benign
(Oct 23, 2020)
germlineclinical testing

Citation Link,

SCV000333425Eurofins Ntd Llc (ga)
criteria provided, single submitter

(EGL Classification Definitions 2015)
Uncertain significance
(Jun 7, 2016)
germlineclinical testing

Citation Link,

SCV000608994CeGaT Center for Human Genetics Tuebingen
criteria provided, single submitter

(CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2)
Likely benign
(Apr 1, 2025)
germlineclinical testing

Citation Link,

SCV001714637Mayo Clinic Laboratories, Mayo Clinic
criteria provided, single submitter

(ACMG Guidelines, 2015)
Uncertain significance
(Oct 21, 2022)
germlineclinical testing

PubMed (4)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineyes5not providednot providednot providednot providedclinical testing
not providedgermlineunknown9not providednot providednot providednot providedclinical testing

Citations

PubMed

Natural and Undetermined Sudden Death: Value of Post-Mortem Genetic Investigation.

Sanchez O, Campuzano O, Fernández-Falgueras A, Sarquella-Brugada G, Cesar S, Mademont I, Mates J, Pérez-Serra A, Coll M, Pico F, Iglesias A, Tirón C, Allegue C, Carro E, Gallego MÁ, Ferrer-Costa C, Hospital A, Bardalet N, Borondo JC, Vingut A, Arbelo E, Brugada J, et al.

PLoS One. 2016;11(12):e0167358. doi: 10.1371/journal.pone.0167358. Erratum in: PLoS One. 2017 Feb 6;12(2):e0171893. doi: 10.1371/journal.pone.0171893..

PubMed [citation]
PMID:
27930701
PMCID:
PMC5145162

Sudden Arrhythmic Death During Exercise: A Post-Mortem Genetic Analysis.

Campuzano O, Sanchez-Molero O, Fernandez A, Mademont-Soler I, Coll M, Perez-Serra A, Mates J, Del Olmo B, Pico F, Nogue-Navarro L, Sarquella-Brugada G, Iglesias A, Cesar S, Carro E, Borondo JC, Brugada J, Castellà J, Medallo J, Brugada R.

Sports Med. 2017 Oct;47(10):2101-2115. doi: 10.1007/s40279-017-0705-3.

PubMed [citation]
PMID:
28255936
See all PubMed Citations (4)

Details of each submission

From GeneDx, SCV000237620.3

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

Description

This variant is associated with the following publications: (PMID: 27930701, 28255936, 17344846)

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

From Eurofins Ntd Llc (ga), SCV000333425.4

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided4not providednot providedclinical testingnot provided
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot provided4not providednot providednot provided

From CeGaT Center for Human Genetics Tuebingen, SCV000608994.39

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided5not providednot providedclinical testingnot provided

Description

TTN: BP4

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineyesnot providednot providednot provided5not providednot providednot provided

From Mayo Clinic Laboratories, Mayo Clinic, SCV001714637.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided5not providednot providedclinical testing PubMed (4)

Description

BP4

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot provided5not providednot providednot provided

Last Updated: Oct 25, 2025