rs772686744
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Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong
The ENST00000242317.9(DNAI1):āc.1703G>Cā(p.Trp568Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,614,002 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (ā ā ).
Frequency
Genomes: š 0.000026 ( 0 hom., cov: 32)
Exomes š: 0.000033 ( 1 hom. )
Consequence
DNAI1
ENST00000242317.9 missense
ENST00000242317.9 missense
Scores
14
4
1
Clinical Significance
Conservation
PhyloP100: 7.36
Genes affected
DNAI1 (HGNC:2954): (dynein axonemal intermediate chain 1) This gene encodes a member of the dynein intermediate chain family. The encoded protein is part of the dynein complex in respiratory cilia. The inner- and outer-arm dyneins, which bridge between the doublet microtubules in axonemes, are the force-generating proteins responsible for the sliding movement in axonemes. The intermediate and light chains, thought to form the base of the dynein arm, help mediate attachment and may also participate in regulating dynein activity. Mutations in this gene result in abnormal ciliary ultrastructure and function associated with primary ciliary dyskinesia and Kartagener syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 16 ACMG points.
PM1
In a repeat WD 5 (size 39) in uniprot entity DNAI1_HUMAN there are 6 pathogenic changes around while only 1 benign (86%) in ENST00000242317.9
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.992
PP5
Variant 9-34514527-G-C is Pathogenic according to our data. Variant chr9-34514527-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 288744.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
DNAI1 | NM_012144.4 | c.1703G>C | p.Trp568Ser | missense_variant | 17/20 | ENST00000242317.9 | NP_036276.1 | |
DNAI1 | NM_001281428.2 | c.1715G>C | p.Trp572Ser | missense_variant | 17/20 | NP_001268357.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
DNAI1 | ENST00000242317.9 | c.1703G>C | p.Trp568Ser | missense_variant | 17/20 | 1 | NM_012144.4 | ENSP00000242317 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152120Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251228Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135790
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GnomAD4 exome AF: 0.0000328 AC: 48AN: 1461882Hom.: 1 Cov.: 32 AF XY: 0.0000275 AC XY: 20AN XY: 727242
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GnomAD4 genome AF: 0.0000263 AC: 4AN: 152120Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74314
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ClinVar
Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3Uncertain:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Primary ciliary dyskinesia Pathogenic:2
Likely pathogenic, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 29, 2018 | The p.W568S variant (also known as c.1703G>C), located in coding exon 17 of the DNAI1 gene, results from a G to C substitution at nucleotide position 1703. The tryptophan at codon 568 is replaced by serine, an amino acid with highly dissimilar properties. This variant was first described in two siblings with respiratory distress syndrome, outer dynein arm defects on electron microscopy, and a second pathogenic alteration confirmed in trans; one of the siblings also had situs inversus (Zariwala M et al. Am. J. Respir. Cell Mol. Biol., 2001 Nov;25:577-83). This variant was also detected in another individual with a clinical diagnosis of primary ciliary dyskinesia with outer arm defects on electron microscopy, in compound heterozygous state with a second DNAI1 alteration (Failly M et al. Respiration, 2008 Apr;76:198-204). This amino acid position is highly conserved in available vertebrate species. Based on data from ExAC, the C allele has an overall frequency of approximately <0.01% (1/106200). 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. - |
Pathogenic, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Nov 28, 2023 | This sequence change replaces tryptophan, which is neutral and slightly polar, with serine, which is neutral and polar, at codon 568 of the DNAI1 protein (p.Trp568Ser). This variant is present in population databases (rs772686744, gnomAD 0.004%). This missense change has been observed in individual(s) with primary ciliary dyskinesia (PMID: 11713099, 18434704; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 288744). 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 expected to disrupt DNAI1 protein function with a positive predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. - |
not provided Pathogenic:1Uncertain:1
Uncertain significance, flagged submission | clinical testing | Eurofins Ntd Llc (ga) | May 16, 2018 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Mar 22, 2024 | In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 17534128, 11713099, 18434704) - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
T;D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
.;H
MutationTaster
Benign
D
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
.;D
REVEL
Pathogenic
Sift
Uncertain
.;D
Sift4G
Pathogenic
D;D
Polyphen
1.0
.;D
Vest4
MutPred
0.97
.;Gain of disorder (P = 0.015);
MVP
MPC
0.70
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at