5-13841051-AT-ATT
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_001369.3(DNAH5):c.5563dupA(p.Ile1855AsnfsTer6) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000601 in 1,613,974 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. I1855I) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_001369.3 frameshift
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: Pathogenic. The variant received 16 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_001369.3. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| DNAH5 | NM_001369.3 | MANE Select | c.5563dupA | p.Ile1855AsnfsTer6 | frameshift | Exon 34 of 79 | NP_001360.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| DNAH5 | ENST00000265104.5 | TSL:1 MANE Select | c.5563dupA | p.Ile1855AsnfsTer6 | frameshift | Exon 34 of 79 | ENSP00000265104.4 | ||
| DNAH5 | ENST00000681290.1 | c.5518dupA | p.Ile1840AsnfsTer6 | frameshift | Exon 34 of 79 | ENSP00000505288.1 |
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152138Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000597 AC: 15AN: 251182 AF XY: 0.0000663 show subpopulations
GnomAD4 exome AF: 0.0000616 AC: 90AN: 1461836Hom.: 0 Cov.: 31 AF XY: 0.0000688 AC XY: 50AN XY: 727216 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152138Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3AN XY: 74320 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia 3 Pathogenic:7
DNAH5 c.5563dupA has been reported in multiple individuals with primary ciliary dyskinesia. This variant (rs752925056) is rare (<0.1%) in a large population dataset (gnomAD: 17/282580 total alleles; 0.006%; no homozygotes) and has been reported in ClinVar. This frameshift variant results in a premature stop codon in exon 34 likely leading to nonsense-mediated decay and lack of protein production. We consider DNAH5 c.5563dupA to be pathogenic.
This variant was classified as: Pathogenic. The following ACMG criteria were applied in classifying this variant: PVS1,PP1,PP3.
The variant is observed at an extremely low frequency in the gnomAD v4.1.0 dataset (total allele frequency: 0.006%). Predicted Consequence/Location: Frameshift: predicted to result in a loss or disruption of normal protein function through nonsense-mediated decay (NMD) or protein truncation. Multiple pathogenic variants are reported downstream of the variant. The variant has been reported at least twice as pathogenic with clinical assertions and evidence for the classification (ClinVar ID: VCV000407241 / PMID: 11788826). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline.
ACMG categories: PVS1,PM3,PP5
This variant c.5563dupA(p.I1855fs) creates a premature termination codon in exon 34, where nonsense-mediated decay is predicted to occur. The mechanism of pathogenicity in DNAH5 mutations appears to be bi-allelic loss of function [PMID: 16627867] (PVS1). This variant is extremely rare in the gnomAD database (PM2). It was previously reported in patients with primary ciliary dyskinesia and atrial and ventricular septal defects and found to be in trans configuration with another damaging variant or as a homozygote [PMID: 11788826, 28991257, 31118369, 31772028, 32622824] (PM3). It is interpreted as pathogenic according to ACMG/AMP guidelines.
Primary ciliary dyskinesia Pathogenic:3
This sequence change creates a premature translational stop signal (p.Ile1855Asnfs*6) in the DNAH5 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in DNAH5 are known to be pathogenic (PMID: 11788826, 16627867). This variant is present in population databases (rs752925056, gnomAD 0.03%). This premature translational stop signal has been observed in individuals with primary ciliary dyskinesia (PMID: 11788826, 25186273, 26228299). ClinVar contains an entry for this variant (Variation ID: 407241). For these reasons, this variant has been classified as Pathogenic.
The c.5563dupA pathogenic mutation, located in coding exon 34 of the DNAH5 gene, results from a duplication of A at nucleotide position 5563, causing a translational frameshift with a predicted alternate stop codon (p.I1855Nfs*6). This alteration has been detected in the homozygous state, or in conjunction with another DNAH5 mutation, in multiple individuals with primary ciliary dyskinesia (Hornef N et al. Am J Respir Crit Care Med, 2006 Jul;174:120-6; Guo Z et al. J Pediatr, 2020 10;225:157-165.e5; Kurokawa A et al. Respir Investig, 2021 Jul;59:550-554; Blanchon S et al. J Med Genet, 2020 04;57:237-244; Raidt J et al. Eur Respir J, 2014 Dec;44:1579-88; Djakow J et al. Pediatr Pulmonol, 2016 May;51:498-509). In addition, this alteration has been found to cosegregate with disease in four affected homozygous siblings with consanguineous parentage (Olbrich H et al. Nat. Genet., 2002 Feb;30:143-4; Omran H et al. Am. J. Respir. Cell Mol. Biol., 2000 Nov;23:696-702). This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation.
not provided Pathogenic:1
Observed multiple times with a pathogenic or likely pathogenic variant on the opposite allele (in trans) and in the homozygous state in patients from different ethnic backgrounds with primary ciliary dyskinesia, with and without situs inversus and congenital heart defects (PMID: 11788826, 16627867, 25186273, 26228299, 28991257, 31638833, 31118369); Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Also known as c.5563insA and c.5563_5564insA; This variant is associated with the following publications: (PMID: 36864285, 11788826, 16627867, 31638833, 31118369, 26228299, 17059358, 15750039, 25186273, 28991257, 31772028, 32622824, 31589614, 33577779, 35441720, 38041506)
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at