chr15-48497343-C-T
Variant summary
Our verdict is Pathogenic. Variant got 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong
The NM_000138.5(FBN1):c.2216G>A(p.Cys739Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 11/18 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C739W) has been classified as Pathogenic.
Frequency
Consequence
NM_000138.5 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Pathogenic. Variant got 19 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FBN1 | NM_000138.5 | c.2216G>A | p.Cys739Tyr | missense_variant | 19/66 | ENST00000316623.10 | |
FBN1 | NM_001406716.1 | c.2216G>A | p.Cys739Tyr | missense_variant | 18/65 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FBN1 | ENST00000316623.10 | c.2216G>A | p.Cys739Tyr | missense_variant | 19/66 | 1 | NM_000138.5 | P1 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Cov.: 31
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute | Jul 03, 2017 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Nov 07, 2022 | Identified in patients with Marfan syndrome in published literature (Franken et al., 2016; Fang et al., 2017); Not observed at significant frequency in large population cohorts (gnomAD); Affects a cysteine residue within a calcium-binding EGF-like domain of the FBN1 gene, which may affect disulfide bonding and is predicted to alter the structure and function of the protein; cysteine substitutions in the calcium-binding EGF-like domains represent the majority of pathogenic missense changes associated with FBN1-related disorders (Collod-Beroud et al., 2003); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 26787436, 12938084, 28855619) - |
Marfan syndrome Pathogenic:1
Likely pathogenic, no assertion criteria provided | clinical testing | Center for Medical Genetics Ghent, University of Ghent | Nov 07, 2017 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at