VCV003374706.1 - ClinVar

NM_000138.5(FBN1):c.5353_5354del (p.Met1785fs)

Germline

Classification

The aggregate germline classification for this variant, typically for a monogenic or Mendelian disorder as in the ACMG/AMP guidelines, or for response to a drug. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the aggregate classification.

(1)

Stars represent the aggregate review status, or the level of review supporting the aggregate germline classification for this VCV record. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status. The number of submissions which contribute to this review status is shown in parentheses.

Likely pathogenic

criteria provided, single submitter

Somatic

No data submitted for somatic clinical impact

Somatic

No data submitted for oncogenicity

Variant Details

Identifiers

NM_000138.5(FBN1):c.5353_5354del (p.Met1785fs)

Variation ID: 3374706 Accession: VCV003374706.1

Type and length

Deletion, 2 bp

Location

Cytogenetic: 15q21.1 15: 48456705-48456706 (GRCh38) [ NCBI UCSC ] 15: 48748902-48748903 (GRCh37) [ NCBI UCSC ]

Timeline in ClinVar

	First in ClinVar Help The date this variant first appeared in ClinVar with each type of classification.	Last submission Help The date of the most recent submission for each type of classification for this variant.	Last evaluated Help The most recent date that a submitter evaluated this variant for each type of classification.
Germline	Nov 10, 2024	Nov 10, 2024	Nov 6, 2024

HGVS

Nucleotide	Protein	Molecular consequence
NM_000138.5:c.5353_5354del MANE Select Help Transcripts from the Matched Annotation from the NCBI and EMBL-EBI (MANE) collaboration.	NP_000129.3:p.Met1785fs	frameshift
NM_000138.4:c.5353_5354delAT	NP_000129.3:p.Met1785Glyfs	frameshift
NM_001406716.1:c.5353_5354del	NP_001393645.1:p.Met1785fs	frameshift
NC_000015.10:g.48456705_48456706del
NC_000015.9:g.48748902_48748903del
NG_008805.2:g.194083_194084del
LRG_778:g.194083_194084del
LRG_778t1:c.5353_5354del

... more HGVS ... less HGVS

Protein change

M1785fs

Other names

Canonical SPDI

NC_000015.10:48456704:AT:

Functional consequence Help The effect of the variant on RNA or protein function, based on experimental evidence from submitters.

Global minor allele frequency (GMAF) Help The global minor allele frequency calculated by the 1000 Genomes Project. The minor allele at this location is indicated in parentheses and may be different from the allele represented by this VCV record.

Allele frequency Help The frequency of the allele represented by this VCV record.

Links

VarSome

Genes

Gene	OMIM	ClinGen Gene Dosage Sensitivity Curation		Variation Viewer Help Links to Variation Viewer, a genome browser to view variation data from NCBI databases.	Related variants
Gene	OMIM	HI score Help The haploinsufficiency score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.	TS score Help The triplosensitivity score for the gene, curated by ClinGen’s Dosage Sensitivity Curation task team.		Within gene Help The number of variants in ClinVar that are contained within this gene, with a link to view the list of variants.	All Help The number of variants in ClinVar for this gene, including smaller variants within the gene and larger CNVs that overlap or fully contain the gene.
FBN1		Sufficient evidence for dosage pathogenicity	No evidence available	GRCh38 GRCh37	7580	7914

Conditions - Germline

Condition Help The condition for this variant-condition (RCV) record in ClinVar.	Classification Help The aggregate germline classification for this variant-condition (RCV) record in ClinVar. The number of submissions that contribute to this aggregate classification is shown in parentheses. (# of submissions)	Review status Help The aggregate review status for this variant-condition (RCV) record in ClinVar. This value is calculated by NCBI based on data from submitters. Read our rules for calculating the review status.	Last evaluated Help The most recent date that a submitter evaluated this variant for the condition.	Variation/condition record Help The RCV accession number, with most recent version number, for the variant-condition record, with a link to the RCV web page.
Marfan syndrome	Likely pathogenic (1)	criteria provided, single submitter	Nov 6, 2024	RCV004781960.1

Submissions - Germline

Classification Help The submitted germline classification for each SCV record. (Last evaluated)	Review status Help Stars represent the review status, or the level of review supporting the submitted (SCV) record. This value is calculated by NCBI based on data from the submitter. Read our rules for calculating the review status. This column also includes a link to the submitter’s assertion criteria if provided, and the collection method. (Assertion criteria)	Condition Help The condition for the classification, provided by the submitter for this submitted (SCV) record. This column also includes the affected status and allele origin of individuals observed with this variant.	Submitter Help The submitting organization for this submitted (SCV) record. This column also includes the SCV accession and version number, the date this SCV first appeared in ClinVar, and the date that this SCV was last updated in ClinVar.	More information Help This column includes more information supporting the classification, including citations, the comment on classification, and detailed evidence provided as observations of the variant by the submitter.
Likely pathogenic (Nov 06, 2024)	criteria provided, single submitter (ACMG Guidelines, 2015) Method: clinical testing	Marfan syndrome Affected status: yes Allele origin: de novo	Molecular Genetics Laboratory, Motol Hospital Accession: SCV005393832.1 First in ClinVar: Nov 10, 2024 Last updated: Nov 10, 2024	Publications: PubMed (2) PubMed: 30048161‚ 26796135 Comment: This variant was detected in a male with phenotype with partial overlap with Marfan syndrome. The variant was confirmed to be of a de novo … (more) This variant was detected in a male with phenotype with partial overlap with Marfan syndrome. The variant was confirmed to be of a de novo origin. Rare truncating variants affecting the FBN1 gene are well documented as a molecular cause of Marfan syndrome (OMIM:154700) (PMID:30048161;26796135). To conclude, the variant is classified as pathogenic (ACMG PVS1, PM2, PS2). (less) Number of individuals with the variant: 1 Sex: male

Comment:

This variant was detected in a male with phenotype with partial overlap with Marfan syndrome. The variant was confirmed to be of a de novo origin. Rare truncating variants affecting the FBN1 gene are well documented as a molecular cause of Marfan syndrome (OMIM:154700) (PMID:30048161;26796135). To conclude, the variant is classified as pathogenic (ACMG PVS1, PM2, PS2).

Germline Functional Evidence

There is no functional evidence in ClinVar for this variation. If you have generated functional data for this variation, please consider submitting that data to ClinVar.

Comment:

Citations for germline classification of this variant

Title	Author	Journal	Year	Link
Identification of Three Novel FBN1 Mutations and Their Phenotypic Relationship of Marfan Syndrome.	Kayhan G	Genetic testing and molecular biomarkers	2018	PMID: 30048161
Variable severity of cardiovascular phenotypes in patients with an early-onset form of Marfan syndrome harboring FBN1 mutations in exons 24-32.	Maeda J	Heart and vessels	2016	PMID: 26796135

Text-mined citations for this variant ...

Record last updated Nov 10, 2024

ClinVar Genomic variation as it relates to human health

NM_000138.5(FBN1):c.5353_5354del (p.Met1785fs)

Variant Details

Genes

Conditions - Germline

Submissions - Germline

Germline Functional Evidence

Citations for germline classification of this variant

Text-mined citations for this variant ...