rs376633613
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_012472.6(DNAAF11):c.611C>T(p.Ala204Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000477 in 1,613,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A204T) has been classified as Likely benign.
Frequency
Consequence
NM_012472.6 missense
Scores
Clinical Significance
Conservation
Publications
- primary ciliary dyskinesia 19Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes  0.000131  AC: 20AN: 152168Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.0000318  AC: 8AN: 251380 AF XY:  0.0000147   show subpopulations 
GnomAD4 exome  AF:  0.0000390  AC: 57AN: 1461562Hom.:  0  Cov.: 30 AF XY:  0.0000440  AC XY: 32AN XY: 727108 show subpopulations 
Age Distribution
GnomAD4 genome  0.000131  AC: 20AN: 152168Hom.:  0  Cov.: 32 AF XY:  0.0000135  AC XY: 1AN XY: 74340 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia 19    Uncertain:2 
This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 204 of the LRRC6 protein (p.Ala204Val). This variant is present in population databases (rs376633613, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with LRRC6-related conditions. ClinVar contains an entry for this variant (Variation ID: 361904). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt LRRC6 protein function with a negative predictive value of 80%. 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. -
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Primary ciliary dyskinesia    Uncertain:1 
The p.A204V variant (also known as c.611C>T), located in coding exon 5 of the LRRC6 gene, results from a C to T substitution at nucleotide position 611. The alanine at codon 204 is replaced by valine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at