rs397508225
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong
The NM_000492.4(CFTR):c.1538A>G(p.Asp513Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000089 in 1,461,128 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★★). Synonymous variant affecting the same amino acid position (i.e. D513D) has been classified as Likely benign.
Frequency
Consequence
NM_000492.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CFTR | NM_000492.4 | c.1538A>G | p.Asp513Gly | missense_variant | 11/27 | ENST00000003084.11 | |
CFTR-AS1 | NR_149084.1 | n.221+1124T>C | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CFTR | ENST00000003084.11 | c.1538A>G | p.Asp513Gly | missense_variant | 11/27 | 1 | NM_000492.4 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251190Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135776
GnomAD4 exome AF: 0.00000890 AC: 13AN: 1461128Hom.: 0 Cov.: 30 AF XY: 0.00000825 AC XY: 6AN XY: 726902
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Cystic fibrosis Pathogenic:2Uncertain:1Other:1
Pathogenic, reviewed by expert panel | research | CFTR2 | Dec 08, 2017 | - - |
not provided, no classification provided | literature only | ClinVar Staff, National Center for Biotechnology Information (NCBI) | - | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 24, 2015 | The p.D513G variant (also known as c.1538A>G and 1670A>G), located in coding exon 11 of the CFTR gene, results from an A to G substitution at nucleotide position 1538. The aspartic acid at codon 513 is replaced by glycine, an amino acid with similar properties. This alteration was first reported in an individual with CBAVD, elevated sweat chloride, pancreatic sufficiency, and normal lung function, who reportedly carried deltaF508 on the other chromosome (Bienvenu T et al. Cystic Fibrosis Mutation Database [database online]. Toronto, ON, Canada: SickKids; 1998). This variant has been detected in conjunction with a pathogenic mutation in CFTR in four patients tested by our laboratory; it was confirmed to be in trans with the pathogenic mutation in one patient. This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. In the ESP, this variant was not observed in 6503 samples (13006 alleles) with coverage at this position. This amino acid position is highly conserved on sequence alignment. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the majority of available evidence to date, this variant is likely to be pathogenic. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Apr 19, 2022 | This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 513 of the CFTR protein (p.Asp513Gly). This variant is present in population databases (rs397508225, gnomAD 0.0009%). This missense change has been observed in individual(s) with cystic fibrosis (PMID: 10651488, 23974870, 33572515). ClinVar contains an entry for this variant (Variation ID: 53280). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C35"). Experimental studies have shown that this missense change affects CFTR function (PMID: 29805046). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Cystic fibrosis;na:CFTR-related disorders Pathogenic:1
Pathogenic, criteria provided, single submitter | curation | CFTR-France | Mar 09, 2018 | the variant causes a phenotype but regarding our data, we can't formally attribute it to CF, CFTR-RD or both - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at