rs141704318
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4
The NM_012144.4(DNAI1):c.356G>A(p.Arg119Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,613,842 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R119W) has been classified as Uncertain significance.
Frequency
Consequence
NM_012144.4 missense
Scores
Clinical Significance
Conservation
Publications
- primary ciliary dyskinesia 1Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia
- primary ciliary dyskinesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| DNAI1 | ENST00000242317.9 | c.356G>A | p.Arg119Gln | missense_variant | Exon 5 of 20 | 1 | NM_012144.4 | ENSP00000242317.4 | ||
| DNAI1 | ENST00000614641.4 | c.356G>A | p.Arg119Gln | missense_variant | Exon 5 of 20 | 5 | ENSP00000480538.1 | |||
| DNAI1 | ENST00000437363.5 | c.323G>A | p.Arg108Gln | missense_variant | Exon 4 of 9 | 5 | ENSP00000395396.1 | |||
| DNAI1 | ENST00000488369.1 | n.472G>A | non_coding_transcript_exon_variant | Exon 5 of 9 | 3 |
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152150Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000318 AC: 8AN: 251460 AF XY: 0.0000294 show subpopulations
GnomAD4 exome AF: 0.0000246 AC: 36AN: 1461692Hom.: 0 Cov.: 31 AF XY: 0.0000316 AC XY: 23AN XY: 727150 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000118 AC: 18AN: 152150Hom.: 0 Cov.: 32 AF XY: 0.000148 AC XY: 11AN XY: 74304 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia Uncertain:2
This sequence change replaces arginine with glutamine at codon 119 of the DNAI1 protein (p.Arg119Gln). The arginine residue is highly conserved and there is a small physicochemical difference between arginine and glutamine. This variant is present in population databases (rs141704318, ExAC 0.03%). This variant has not been reported in the literature in individuals affected with DNAI1-related conditions. ClinVar contains an entry for this variant (Variation ID: 178762). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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.
not specified Uncertain:1
The Arg119Gln variant in DNA1 has not been previously identified in individuals with pulmonary disease, but this variant has been identified in 2/4406 of Africa n American chromosomes by the NHLBI Exome Sequencing Project (http://evs.gs.wash ington.edu/EVS/; dbSNP rs141704318). Computational prediction tools and evolutio nary conservation analysis do not provide strong support for or against an impac t to the protein. In summary, additional information is needed to fully assess t he clinical significance of the Arg119Gln variant.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at