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NM_000138.5(FBN1):c.5513G>A (p.Gly1838Asp) AND multiple conditions

Germline classification:
Pathogenic (1 submission)
Last evaluated:
Dec 27, 2021
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:
RCV000632002.9

Allele description [Variation Report for NM_000138.5(FBN1):c.5513G>A (p.Gly1838Asp)]

NM_000138.5(FBN1):c.5513G>A (p.Gly1838Asp)

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.5513G>A (p.Gly1838Asp)
Other names:
p.G1838D:GGC>GAC
HGVS:
  • NC_000015.10:g.48452594C>T
  • NG_008805.2:g.198195G>A
  • NM_000138.5:c.5513G>AMANE SELECT
  • NP_000129.3:p.Gly1838Asp
  • NP_000129.3:p.Gly1838Asp
  • LRG_778t1:c.5513G>A
  • LRG_778:g.198195G>A
  • LRG_778p1:p.Gly1838Asp
  • NC_000015.9:g.48744791C>T
  • NM_000138.4:c.5513G>A
Protein change:
G1838D
Links:
dbSNP: rs78970689
NCBI 1000 Genomes Browser:
rs78970689
Molecular consequence:
  • NM_000138.5:c.5513G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Marfan syndrome (MFS)
Synonyms:
MARFAN SYNDROME, TYPE I; Marfan syndrome type 1; Marfan's syndrome; See all synonyms [MedGen]
Identifiers:
MONDO: MONDO:0007947; MedGen: C0024796; Orphanet: 284963; Orphanet: 558; OMIM: 154700
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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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV000753105Labcorp Genetics (formerly Invitae), Labcorp
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Pathogenic
(Dec 27, 2021) 		germlineclinical testing

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

Help

Summary from all submissions

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

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group, Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]
PMID:
28492532
PMCID:
PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000753105.6

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

Description

For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Gly1838 amino acid residue in FBN1. Other variant(s) that disrupt this residue have been observed in individuals with FBN1-related conditions (Invitae), which suggests that this may be a clinically significant amino acid residue. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt FBN1 protein function. ClinVar contains an entry for this variant (Variation ID: 200065). This missense change has been observed in individuals with Marfan syndrome (Invitae). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 1838 of the FBN1 protein (p.Gly1838Asp).

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

Last Updated: Sep 29, 2024