NM_000138.5(FBN1):c.5442C>T (p.Asn1814=) AND Familial thoracic aortic aneurysm and aortic dissection

Germline classification:: Likely benign (4 submissions)
Last evaluated:: Mar 18, 2020
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV000276436.10

Allele description [Variation Report for NM_000138.5(FBN1):c.5442C>T (p.Asn1814=)]

NM_000138.5(FBN1):c.5442C>T (p.Asn1814=)

Gene:

FBN1:fibrillin 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

15q21.1

Genomic location:

Preferred name:

NM_000138.5(FBN1):c.5442C>T (p.Asn1814=)

HGVS:

NC_000015.10:g.48452665G>A
NG_008805.2:g.198124C>T
NM_000138.5:c.5442C>TMANE SELECT
NP_000129.3:p.Asn1814=
NP_000129.3:p.Asn1814=
LRG_778t1:c.5442C>T
LRG_778:g.198124C>T
LRG_778p1:p.Asn1814=
NC_000015.9:g.48744862G>A
NM_000138.4:c.5442C>T
c.5442C>T
p.Asn1814Asn

Links:

dbSNP: rs397515822

NCBI 1000 Genomes Browser:

rs397515822

Molecular consequence:

NM_000138.5:c.5442C>T - synonymous variant - [Sequence Ontology: SO:0001819]

Condition(s)

Name:: Familial thoracic aortic aneurysm and aortic dissection (TAAD)
Synonyms:: Thoracic aortic aneurysm and aortic dissection; Thoracic aortic aneurysms and dissections
Identifiers:: MONDO: MONDO:0019625; MedGen: C4707243; Orphanet: 91387; OMIM: PS607086

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000392302	Illumina Laboratory Services, Illumina	criteria provided, single submitter (ICSL Variant Classification 20161018)	Likely benign (Jun 14, 2016)	germline	clinical testing	ICSL_Variant_Classification_20161018.pdf, Citation Link,
SCV000913674	Color Diagnostics, LLC DBA Color Health	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely benign (Jul 23, 2018)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV002041998	CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely benign (Mar 18, 2020)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV002652267	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Likely benign (Dec 27, 2017)	germline	clinical testing	Citation Link

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Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

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 Illumina Laboratory Services, Illumina, SCV000392302.2

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

From Color Diagnostics, LLC DBA Color Health, SCV000913674.1

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

From CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario, SCV002041998.1

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

From Ambry Genetics, SCV002652267.2

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

Description

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

#	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		not provided	not provided	not provided	not provided

Last Updated: Jan 13, 2025

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