rs797045152
Variant summary
Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PM5PP3
The NM_001190787.3(MCIDAS):c.1142G>T(p.Arg381Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000261 in 1,534,764 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R381H) has been classified as Likely pathogenic.
Frequency
Consequence
NM_001190787.3 missense
Scores
Clinical Significance
Conservation
Publications
- ciliary dyskinesia, primary, 42Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, PanelApp Australia
- primary ciliary dyskinesiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 5 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MCIDAS | ENST00000513312.3 | c.1142G>T | p.Arg381Leu | missense_variant | Exon 7 of 7 | 1 | NM_001190787.3 | ENSP00000426359.1 | ||
| MCIDAS | ENST00000513468.5 | n.*606G>T | non_coding_transcript_exon_variant | Exon 7 of 7 | 5 | ENSP00000422165.1 | ||||
| MCIDAS | ENST00000513468.5 | n.*606G>T | 3_prime_UTR_variant | Exon 7 of 7 | 5 | ENSP00000422165.1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152194Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.00 AC: 0AN: 134040 AF XY: 0.00
GnomAD4 exome AF: 0.00000217 AC: 3AN: 1382570Hom.: 0 Cov.: 30 AF XY: 0.00000293 AC XY: 2AN XY: 682002 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152194Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74348 show subpopulations
ClinVar
Submissions by phenotype
Primary ciliary dyskinesia Uncertain:1
This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 381 of the MCIDAS protein (p.Arg381Leu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MCIDAS-related conditions. Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on MCIDAS protein function. This variant disrupts the p.Arg381 amino acid residue in MCIDAS. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 8813877, 25048963; internal data). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at