rs61743400
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_001378454.1(ALMS1):c.12173G>A(p.Arg4058His) variant causes a missense change. The variant allele was found at a frequency of 0.0000167 in 1,614,128 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. R4058L) has been classified as Uncertain significance.
Frequency
Consequence
NM_001378454.1 missense
Scores
Clinical Significance
Conservation
Publications
- Alstrom syndromeInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, G2P, Orphanet, Genomics England PanelApp
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ALMS1 | ENST00000613296.6 | c.12173G>A | p.Arg4058His | missense_variant | Exon 20 of 23 | 1 | NM_001378454.1 | ENSP00000482968.1 |
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152148Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000398 AC: 10AN: 251256 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.0000144 AC: 21AN: 1461862Hom.: 0 Cov.: 33 AF XY: 0.0000124 AC XY: 9AN XY: 727234 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152266Hom.: 0 Cov.: 33 AF XY: 0.0000672 AC XY: 5AN XY: 74452 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Alstrom syndrome Uncertain:4
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This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
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This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 4059 of the ALMS1 protein (p.Arg4059His). This variant is present in population databases (rs61743400, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with ALMS1-related conditions. ClinVar contains an entry for this variant (Variation ID: 459851). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -
Cardiovascular phenotype Uncertain:1
The p.R4059H variant (also known as c.12176G>A), located in coding exon 20 of the ALMS1 gene, results from a G to A substitution at nucleotide position 12176. The arginine at codon 4059 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at