rs757712771
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_001369.3(DNAH5):c.56C>T(p.Thr19Met) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000044 in 1,613,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T19T) has been classified as Likely benign.
Frequency
Consequence
NM_001369.3 missense, splice_region
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: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| DNAH5 | NM_001369.3 | c.56C>T | p.Thr19Met | missense_variant, splice_region_variant | Exon 1 of 79 | ENST00000265104.5 | NP_001360.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000723 AC: 11AN: 152118Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000478 AC: 12AN: 250848 AF XY: 0.0000516 show subpopulations
GnomAD4 exome AF: 0.0000411 AC: 60AN: 1461418Hom.: 0 Cov.: 29 AF XY: 0.0000413 AC XY: 30AN XY: 727038 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000723 AC: 11AN: 152118Hom.: 0 Cov.: 33 AF XY: 0.0000807 AC XY: 6AN XY: 74318 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia Uncertain:2
This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 19 of the DNAH5 protein (p.Thr19Met). This variant is present in population databases (rs757712771, gnomAD 0.01%). 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: 454787). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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