rs147236883
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 1P and 7B. PP3BP4_ModerateBP6BS1
The NM_001369.3(DNAH5):c.8002G>A(p.Gly2668Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000195 in 1,613,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
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: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| DNAH5 | ENST00000265104.5 | c.8002G>A | p.Gly2668Arg | missense_variant | Exon 48 of 79 | 1 | NM_001369.3 | ENSP00000265104.4 | ||
| DNAH5 | ENST00000681290.1 | c.7957G>A | p.Gly2653Arg | missense_variant | Exon 48 of 79 | ENSP00000505288.1 |
Frequencies
GnomAD3 genomes AF: 0.00109 AC: 165AN: 152072Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.000279 AC: 70AN: 250822 AF XY: 0.000162 show subpopulations
GnomAD4 exome AF: 0.000101 AC: 147AN: 1461696Hom.: 0 Cov.: 32 AF XY: 0.0000743 AC XY: 54AN XY: 727166 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00110 AC: 167AN: 152190Hom.: 0 Cov.: 33 AF XY: 0.00105 AC XY: 78AN XY: 74390 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:3
The DNAH5 p.Gly2668Arg variant was not identified in the literature nor was it identified in the LOVD 3.0 database. The variant was identified in dbSNP (ID: rs147236883), Cosmic and ClinVar (classified as a VUS for Primary Ciliary Dyskinesia by Illumina in 2016, as a VUS by EGL Genetic Diagnostics in 2016, and as likely benign for Ciliary Dyskinesia by Invitae in 2017). The variant was also identified in control databases in 115 of 282222 chromosomes at a frequency of 0.000407 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 110 of 24954 chromosomes (freq: 0.004408), Latino in 4 of 35422 chromosomes (freq: 0.000113) and European (non-Finnish) in 1 of 128626 chromosomes (freq: 0.000008); it was not observed in the Ashkenazi Jewish, East Asian, European (Finnish), Other or South Asian populations. The p.Gly2668 residue is conserved across mammals and other organisms, and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) suggest that the variant may impact the protein; however, this information is not predictive enough to assume pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
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In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Primary ciliary dyskinesia Uncertain:1Benign:2
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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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. -
DNAH5-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at