rs766597612
Variant summary
Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PP3_Strong
The NM_001369.3(DNAH5):c.12734T>C(p.Met4245Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000985 in 1,613,528 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 Uncertain significance (★★).
Frequency
Consequence
NM_001369.3 missense
Scores
Clinical Significance
Conservation
Publications
- primary ciliary dyskinesia 3Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, ClinGen
- primary ciliary dyskinesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| DNAH5 | NM_001369.3 | c.12734T>C | p.Met4245Thr | missense_variant | Exon 74 of 79 | ENST00000265104.5 | NP_001360.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152172Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251038 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.000107 AC: 156AN: 1461356Hom.: 0 Cov.: 31 AF XY: 0.0000990 AC XY: 72AN XY: 727020 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152172Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74340 show subpopulations
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia Uncertain:3
The p.M4245T variant (also known as c.12734T>C), located in coding exon 74 of the DNAH5 gene, results from a T to C substitution at nucleotide position 12734. The methionine at codon 4245 is replaced by threonine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 4245 of the DNAH5 protein (p.Met4245Thr). This variant is present in population databases (rs766597612, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with DNAH5-related conditions. ClinVar contains an entry for this variant (Variation ID: 351011). 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 not expected to disrupt DNAH5 protein function. 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. -
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Primary ciliary dyskinesia 3 Uncertain:1
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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at